modified-Polyphenylene Ether(m-PPE) resin XYRON™

What is XYRON™ ?

XYRON™ is the brand name of Asahi Kasei’s modified polyphenylene ether (mPPE).

XYRON™ is an engineering plastic with unique properties, created by alloy combinations of PPE with other resins such as polystyrene (PS), polyamide (PA), polypropylene (PP), polyphenylene sulfide (PPS) or other polymeric materials. Due to the versatile blending and incorporation of fillers such as glass fibers, the properties can be customised to meet various industry needs

Features of XYRON™

The features of XYRON™ among general-purpose engineering plastics are shown below.

Advantages

1. Low specific gravity
2. Excellent dimensional stability due to low molding shrinkage and low water absorption
3. Excellent electrical characteristics
4. Easy to make flame retardant

Disadvantages

1. Poor resistance to organic solvents.
2. Poor weather resistance – Especially in the case of grade with light colors.

Manufacturing of XYRON™

Using Asahi Kasei Proprietary technology, XYRON™ resins are manufactured in an integrated system from raw materials sources.

What is PPE?

XYRON™ Application cases

Inter-cell spacer

Insulator between battery cells.

As Asahi Kasei Group Environmental Contribution Products, this product contributes to the reduction of CO2 emissions at the stage of use.

Products

XYRON™

Grades

T series and 340Z
・Tracking resistance
・Hydrolysis resistance
・Acid and alkaline resistance
・Stable long-term physical properties

Features

・A material with a high degree of freedom in design suitable for the housing.
・A low specific gravity material with excellent creep characteristic, non-halogenated flame retardancy, and dimensional stability.
・Excellent thin-wall moldability, contributing to space saving and weight reduction.

Bus bar cover

Cover of conductor through which high voltage and large current flows.

As Asahi Kasei Group Environmental Contribution Products, this product contributes to the reduction of CO2 emissions at the stage of use.

Products

XYRON™

Grades

TF701, TA720, X9110

Features

・Thin-wall moldability, insulation, and heat resistance.
・Some grades have oil resistance. Easy to handle.

Fuel cell

Components for fuel cells

Products

XYRON™

Grades

500H
・Non-reinforced heat resistant grade
・Low elution performance
・Acid resistance

Features

・Low elution from resin (ions, oligomers, and etc.) to water
which is highly evaluated by customers.
・Excellent hot water resistance and acid resistance, and physical properties hardly deteriorate even when components are immersed for a long period of time.

In-vehicle camera
(lens barrel, lens spacer)

Lens barrels and lens spacers used in various cameras installed in cars

Products

XYRON™

Grades

・XP640 PPA/PPE blend + GF40%
・DG040, DG340 PPS/PPE blend + special glass filler 40%

Features

・Demonstrate high heat resistance, high strength, and high stiffness performance comparable to high heat resistance PA.
・Suppress the decrease in mechanical strength under high temperature, and reduces anisotropy of dimensional change by blending special glass filler.
・ Contribute to cost reduction of metal components by resinification.

Head-up display

Head-up display components installed in cars

Products

XYRON™

Grades

・ DG040 PPS/PPE blend + special glass filler 40%
・ 744Z PPE/PS blend (Non-reinforced)

Features

・By blending PPE with PPS, dimensional stability at high temperatures is improved, and by blending special glass filler, dimensional anisotropy is reduced.
・UL flame retardancy V-0, deflection temperature under load 135 °C, excellent balance of heat resistance, toughness and dimensional stability.

Relay block / junction box (XYRON™)

Storage case for relays, fuses, etc.

Products

XYRON™

Grades

A0210 (PA / PPE blend):. High heat resistance, high toughness, low water absorption kow dimensional change (compared to nylon material)
A0230: A0210 equivalent grade, which is using localized raw materials in the ASEAN region .
AF700 (PA / PPE blend): High heat resistance, low water absorption low dimensional change, and UL V-0

Features

-Improve changes in water absorption dimensions while maintaining the excellent heat resistance and toughness of PA.
-Can be used for advanced designs that require toughness due to our materials' strength and high toughness characterestics.
・ UL V-0 grade is also available.
-By producing hexamethylenediamine, which is the raw material for PA, in-house (the only Japanese company), we have achieved stable supply and high quality.
・ By localizing raw materials overseas, we maintain a stable supply and cost globally.

Inverter cover

Covers of various electrical equipments

Products

XYRON™

Grades

240Z、440Z
・Non-reinforced and flame retardant grades
・Excellent electrical characteristics and flame retardancy
・Hydrolysis resistance

Features

・Material with design flexibility suitable for outer chassis and interior chassis.
・UL flame-retardant 5VA acquisition and low specific gravity that contribute to product miniaturization and weight reduction.
・Heat resistance
・Acid and alkali resistance.

Cash dispenser

Chassis, internal chassis, conductive mechanism parts

Products

XYRON™

Grades

X8610
・ Gives conductivity
・ Excellent mechanical properties (strength / rigidity)
・ High heat resistance

Features

・A material with a high degree of freedom in design suitable for chassis, internal chassis, and conductive mechanism parts.
・Since it suppresses the generation of static electricity, it is a suitable material for energized parts.

Solar cell junction box

The box shape parts that houses a diode of a solar panel

Products

XYRON™

Grades

540Z 644Z PV41Z
・Tracking resistance
・Hydrolysis resistance
・Acid and alkaline resistance
・Small dimensional change under high temperature and high humidity

Features

・Excellent heat resistance, rigidity, and low water absorption.
・Small dimensional change under high temperature and high humidity

solar cell connecter

Connector between cable and junction box of solar cell

Products

XYRON™

Grades

PV40Z
・Tracking resistance
・Hydrolysis resistance
・Acid and alkaline resistance
・Long-term stability of physical properties

Features

・Excellent balance between tracking resistance and low temperature impact strength.
・Enable to design compact high voltage compatible connector.
・It has excellent hydrolysis and ammonia resistance, and does not cause an extreme deterioration of physical properties even under a high temperature and high humidity.

Water mixing tap

Internal parts of the mixing tap

Products

XYRON™

Grades

WG720, WG722
(GF reinforced/drinking water contact grade)
・Excellent heat resistance, hydrolysis resistance, and excellent vibration fatigue characteristics.
・Excellent acid and alkali resistance.

Features

・Achieves rust prevention by resinizing the parts around the mixing tap
・Our materials are also suitable for parts which need strength.
・Contributes to weight reduction and cost performance due to low specific gravity.
・Complies with the standards for drinking water contact materials (NSF 61, etc.).

Water purification parts

Water purification system related parts (case, cap, and etc.)

Products

XYRON™

Grades

WG731
(GF reinforced/drinking water contact grade)
・Excellent heat resistance, hydrolysis resistance, and excellent vibration fatigue characteristics.
・Excellent acid and alkali resistance.
・Excellent dimensional accuracy and weldability.

Features

・Achieves rust prevention by resinizing water supply and drainage parts.
・ Our materials are also suitable for parts which need strength.
・Contributes to weight reduction and cost performance due to low specific gravity.
・Complies with the standards for drinking water contact materials (NSF 61, etc.).

Printer mechanism parts
(XYRON™)

Printer housing, mechanical parts for laser beam printer (LBP), inkjet printer (IJP)

Products

XYRON™

Grades

・X7744, X444V, X523V, X364V: Filler reinforced materials.
Ultra-low warpage, high dimensional stability, low specific gravity, high rigidity, non-halo flame retardancy, and a wide range of heat resistant temperatures which can be designed.
・CN51V: Light transmitting material. 940nm infrared transmission.
・VT31V, VT31Z, VT52Z: Vibration damping material. Help achieve noise reduction of parts.
・DG040, DG235, DG141 (PPS/PPE blends): Chemical resistance, low warpage, high dimensional stability, high heat resistance, good flow, and high stiffness

Features

・Can be used for high-precision parts with design flexibility, which is suitable for chassis and mechanical parts.
・Light transmitting material contributes adhesive-free design.
・Some grades have high loss coefficient and vibration suppression effect.
・Some grades have high chemical resistance.
・DG series are suitable for high-precision parts, and also it contributes to the miniaturization of parts.
・Small specific gravity contributes to the weight reduction of parts.

Fan impeller for high speed fan motor

Cooling fan for servers, personal computers and other equipment

Products

XYRON™

Grades

G793Z、G702V、G601Z
・GF Reinforced grades
・GF content 10%, 20% and 30%

Features

・Since our materials have low specific gravity, they will help achieve weight reduction and contribute to high rotation.
・Low dimensional change due to low water absorption characterestic.
・Small deformation under high temperature due to high heat resistance.
・Suitable for high-speed fans and processed components that require strength.
・Can achieve cost reduction by using our materials to make components lighter and smaller.

・Communication base station antenna cover
・Base materialof MID

Covers for various communication antennas and base materials for MID antennas

Products

XYRON™

Grades

442Z、Development grade
・Non-reinforced flame-retardant grades

Features

・The excellent dielectric performance (low dielectric constant, low dissipation factor, and their small temperature dependence) make our materials suitable for using as antenna cover.
・There is a lineup of grades with various dielectric performances such as high dielectric constant development materials.
・Good impact resistance and stable long-term physical properties.

Nickel metal hydride battery cell case

As Asahi Kasei Group Environmental Contribution Products, this product contributes to the reduction of CO2 emissions at the stage of use.

nimh

Products

XYRON™

Grades

Xyron™ Excellent Lightweight Grade
・Lightweight (low specific gravity)
・ Alkaline resistance
・Gas barrier
・Metal degradation resistance

Features

This material was developed to achieve lightweight and the various requirements for battery cell case.

Inter-cell spacer

Insulator between battery cells.

As Asahi Kasei Group Environmental Contribution Products, this product contributes to the reduction of CO2 emissions at the stage of use.

Products

XYRON™

Grades

T series and 340Z
・Tracking resistance
・Hydrolysis resistance
・Acid and alkaline resistance
・Stable long-term physical properties

Features

・A material with a high degree of freedom in design suitable for the housing.
・A low specific gravity material with excellent creep characteristic, non-halogenated flame retardancy, and dimensional stability.
・Excellent thin-wall moldability, contributing to space saving and weight reduction.

Bus bar cover

Cover of conductor through which high voltage and large current flows.

As Asahi Kasei Group Environmental Contribution Products, this product contributes to the reduction of CO2 emissions at the stage of use.

Products

XYRON™

Grades

TF701, TA720, X9110

Features

・Thin-wall moldability, insulation, and heat resistance.
・Some grades have oil resistance. Easy to handle.

Fuel cell

Components for fuel cells

Products

XYRON™

Grades

500H
・Non-reinforced heat resistant grade
・Low elution performance
・Acid resistance

Features

・Low elution from resin (ions, oligomers, and etc.) to water
which is highly evaluated by customers.
・Excellent hot water resistance and acid resistance, and physical properties hardly deteriorate even when components are immersed for a long period of time.

In-vehicle camera
(lens barrel, lens spacer)

Lens barrels and lens spacers used in various cameras installed in cars

Products

XYRON™

Grades

・XP640 PPA/PPE blend + GF40%
・DG040, DG340 PPS/PPE blend + special glass filler 40%

Features

・Demonstrate high heat resistance, high strength, and high stiffness performance comparable to high heat resistance PA.
・Suppress the decrease in mechanical strength under high temperature, and reduces anisotropy of dimensional change by blending special glass filler.
・ Contribute to cost reduction of metal components by resinification.

Head-up display

Head-up display components installed in cars

Products

XYRON™

Grades

・ DG040 PPS/PPE blend + special glass filler 40%
・ 744Z PPE/PS blend (Non-reinforced)

Features

・By blending PPE with PPS, dimensional stability at high temperatures is improved, and by blending special glass filler, dimensional anisotropy is reduced.
・UL flame retardancy V-0, deflection temperature under load 135 °C, excellent balance of heat resistance, toughness and dimensional stability.

Relay block / junction box (XYRON™)

Storage case for relays, fuses, etc.

Products

XYRON™

Grades

A0210 (PA / PPE blend):. High heat resistance, high toughness, low water absorption kow dimensional change (compared to nylon material)
A0230: A0210 equivalent grade, which is using localized raw materials in the ASEAN region .
AF700 (PA / PPE blend): High heat resistance, low water absorption low dimensional change, and UL V-0

Features

-Improve changes in water absorption dimensions while maintaining the excellent heat resistance and toughness of PA.
-Can be used for advanced designs that require toughness due to our materials' strength and high toughness characterestics.
・ UL V-0 grade is also available.
-By producing hexamethylenediamine, which is the raw material for PA, in-house (the only Japanese company), we have achieved stable supply and high quality.
・ By localizing raw materials overseas, we maintain a stable supply and cost globally.

Inverter cover

Covers of various electrical equipments

Products

XYRON™

Grades

240Z、440Z
・Non-reinforced and flame retardant grades
・Excellent electrical characteristics and flame retardancy
・Hydrolysis resistance

Features

・Material with design flexibility suitable for outer chassis and interior chassis.
・UL flame-retardant 5VA acquisition and low specific gravity that contribute to product miniaturization and weight reduction.
・Heat resistance
・Acid and alkali resistance.

Cash dispenser

Chassis, internal chassis, conductive mechanism parts

Products

XYRON™

Grades

X8610
・ Gives conductivity
・ Excellent mechanical properties (strength / rigidity)
・ High heat resistance

Features

・A material with a high degree of freedom in design suitable for chassis, internal chassis, and conductive mechanism parts.
・Since it suppresses the generation of static electricity, it is a suitable material for energized parts.

Solar cell junction box

The box shape parts that houses a diode of a solar panel

Products

XYRON™

Grades

540Z 644Z PV41Z
・Tracking resistance
・Hydrolysis resistance
・Acid and alkaline resistance
・Small dimensional change under high temperature and high humidity

Features

・Excellent heat resistance, rigidity, and low water absorption.
・Small dimensional change under high temperature and high humidity

solar cell connecter

Connector between cable and junction box of solar cell

Products

XYRON™

Grades

PV40Z
・Tracking resistance
・Hydrolysis resistance
・Acid and alkaline resistance
・Long-term stability of physical properties

Features

・Excellent balance between tracking resistance and low temperature impact strength.
・Enable to design compact high voltage compatible connector.
・It has excellent hydrolysis and ammonia resistance, and does not cause an extreme deterioration of physical properties even under a high temperature and high humidity.

Water mixing tap

Internal parts of the mixing tap

Products

XYRON™

Grades

WG720, WG722
(GF reinforced/drinking water contact grade)
・Excellent heat resistance, hydrolysis resistance, and excellent vibration fatigue characteristics.
・Excellent acid and alkali resistance.

Features

・Achieves rust prevention by resinizing the parts around the mixing tap
・Our materials are also suitable for parts which need strength.
・Contributes to weight reduction and cost performance due to low specific gravity.
・Complies with the standards for drinking water contact materials (NSF 61, etc.).

Water purification parts

Water purification system related parts (case, cap, and etc.)

Products

XYRON™

Grades

WG731
(GF reinforced/drinking water contact grade)
・Excellent heat resistance, hydrolysis resistance, and excellent vibration fatigue characteristics.
・Excellent acid and alkali resistance.
・Excellent dimensional accuracy and weldability.

Features

・Achieves rust prevention by resinizing water supply and drainage parts.
・ Our materials are also suitable for parts which need strength.
・Contributes to weight reduction and cost performance due to low specific gravity.
・Complies with the standards for drinking water contact materials (NSF 61, etc.).

Printer mechanism parts
(XYRON™)

Printer housing, mechanical parts for laser beam printer (LBP), inkjet printer (IJP)

Products

XYRON™

Grades

・X7744, X444V, X523V, X364V: Filler reinforced materials.
Ultra-low warpage, high dimensional stability, low specific gravity, high rigidity, non-halo flame retardancy, and a wide range of heat resistant temperatures which can be designed.
・CN51V: Light transmitting material. 940nm infrared transmission.
・VT31V, VT31Z, VT52Z: Vibration damping material. Help achieve noise reduction of parts.
・DG040, DG235, DG141 (PPS/PPE blends): Chemical resistance, low warpage, high dimensional stability, high heat resistance, good flow, and high stiffness

Features

・Can be used for high-precision parts with design flexibility, which is suitable for chassis and mechanical parts.
・Light transmitting material contributes adhesive-free design.
・Some grades have high loss coefficient and vibration suppression effect.
・Some grades have high chemical resistance.
・DG series are suitable for high-precision parts, and also it contributes to the miniaturization of parts.
・Small specific gravity contributes to the weight reduction of parts.

Fan impeller for high speed fan motor

Cooling fan for servers, personal computers and other equipment

Products

XYRON™

Grades

G793Z、G702V、G601Z
・GF Reinforced grades
・GF content 10%, 20% and 30%

Features

・Since our materials have low specific gravity, they will help achieve weight reduction and contribute to high rotation.
・Low dimensional change due to low water absorption characterestic.
・Small deformation under high temperature due to high heat resistance.
・Suitable for high-speed fans and processed components that require strength.
・Can achieve cost reduction by using our materials to make components lighter and smaller.

・Communication base station antenna cover
・Base materialof MID

Covers for various communication antennas and base materials for MID antennas

Products

XYRON™

Grades

442Z、Development grade
・Non-reinforced flame-retardant grades

Features

・The excellent dielectric performance (low dielectric constant, low dissipation factor, and their small temperature dependence) make our materials suitable for using as antenna cover.
・There is a lineup of grades with various dielectric performances such as high dielectric constant development materials.
・Good impact resistance and stable long-term physical properties.

Nickel metal hydride battery cell case

As Asahi Kasei Group Environmental Contribution Products, this product contributes to the reduction of CO2 emissions at the stage of use.

nimh

Products

XYRON™

Grades

Xyron™ Excellent Lightweight Grade
・Lightweight (low specific gravity)
・ Alkaline resistance
・Gas barrier
・Metal degradation resistance

Features

This material was developed to achieve lightweight and the various requirements for battery cell case.

PPE/PS Non-Reinforced

ASTM Method
HDT(°C)
ISO Method
DTUL(°C)
Flammability(UL-94)
1.82MPa 1.80MPa HB V-2 V-1 V-0
76 70-77 1951J
85 78 100V 100Z
90 86-93 200H 240W 240V 240Z
100 95-98 300H 340W 340V 340Z
110 104-109 400H 440Z
120 112-114 500H 540V
CN51V
540Z
130 126 600H 640V 644Z
140 135-137 740V 744Z
150 146 SZ800
170 158 1000H
(Eq. to HB)

PPE/PS Reinforced

ASTM Method
HDT(°C)
ISO Method
DTUL(°C)
Flammability (UL-94)
1.82MPa 1.80MPa HB V-1 V-0
100 97-107 X352H X332V
X352V
X364V
X1561
110 106-116 G402H X423V
X444V
X1712
120 115-121 X552H
X533H
X523V
G544V
X7744
X552V
130 118-130 G701H G701V G601Z
140 135-148 G702H
G703H
G702V G793Z

PP/PPE

ISO Method
DTUL(°C)
1.80MPa
Flammability (UL-94) Non-Reinforced Reinforced
97 TZ100
120 HB TT521

PA/PPE

ISO Method
DTUL(°C)
0.45MPa
Flammability
(UL-94)
Non-Reinforced Reinforced
176 A0210
190 HB AT600
198 AG511
252 AG213
193 V-0 AF700

PPS/PPE

ISO Method
DTUL(°C)
1.80MPa
Flammability (UL-94)
V-1 V-0
217 DG235
183 DG040
214 DG141
256 DV166

PPA/PPE

ISO Method
DTUL(°C)
1.80MPa
Flammability (UL-94)
HB
274 XP640

Product Data / Tips for Use

Important precautions for XYRON™

All information contained here is given in good faith based on data, information and documents currently available to Asahi Kasei Corporation. It is provided without warranty, express or implied, as to its completeness or accuracy, and is subject to change without notice. It is the responsibility of the user to make their own determination as to the suitability of Xyron™ for the intended conditions of use and product design. For the most current information, call Asahi Kasei Corporation at +81-3-6699-3386, or by facsimile at +81-3-6699-3473.

Important Precautions and Notes on Handling and Use

Always observe the following general precautions in the handling and use of Xyron™, and consult the material safety data sheet, which will be made available upon request, before handling and use. Prior to mixing or using any additive or other substance with Xyron™, investigate and determine its safety and suitability for that purpose.

Health and safety
Avoid exposure of skin, eyes, and respiratory tract to gas generated during melting and drying. Avoid contact exposure to hot or molten resin. Employ local ventilation and protective gear, including chemical goggles or safety glasses, and protective gloves, throughout drying and melting operations. In case of emergency, call one of the following:

  • US: +1-800-424-9300 (Chemtrec)
  • EU: +32-(0)-1458-4545 (BIG v.z.w.)
  • Japan: +81-44-271-2561 (Asahi Kasei)

Combustibility
Xyron™ is combustible and must be kept strictly away from heat, sparks, and flame during handing and storage. Xyron™ may emit toxic gases during combustion. Extinguish with water, or with foam or powder chemical extinguisher.

Disposal
Dispose of Xyron™ by landfill burial or by incineration in a properly equipped facility, in accordance with relevant laws and regulations. Xyron™ may emit carbon monoxide and other toxic gasses during incineration.

Storing
Keep Xyron™ strictly away from direct sunlight, water, high humidity, and moisture.

Proscribed Applications

  • Do not use Xyron™ for food packaging applications.
  • Do not use Xyron™ for medical devices designed or intended for intracorporeal implantation or contact, whether direct or indirect, with bodily fluids.

For specifics, refer to our division. Asahi Kasei Corporation encourages its customers to review their applications of its products from the standpoint of human health and environmental quality. To help ensure that Asahi Kasei Corporation products are not used in ways for which they are not intended or tested, Asahi Kasei Corporation representatives are willing to assist in dealing with ecological and product safety considerations.

Compliance with Relevant Standards

Xyron™ grades are available which comply with Japans voluntary industrial guidelines on polyolefin and other synthetic resins for use as food container or food wrapping materials, with Notification No.370 of the Ministry of Health and Welfare of Japan, and with UL and CSA standards. In all cases, it is nevertheless recommended that the safety of Xyron™ for a specific application be confirmed by the user through appropriate testing. For further information, please contact Asahi Kasei Corporation.

Other

Asahi Kasei Corporation warrants only that the use or sale of any material described herein offered for sale by Asahi Kasei Corporation does not infringe any patent covering the material itself, but does not warrant against infringement by reason of the use thereof in combination with other materials or in any process.

Molding

Pre-drying
Modified PPE has the lowest moisture absorption of any engineering plastic and displays excellent hydrolysis resistance. To help ensure against surface appearance faults such as silver streaks, it is nonetheless good practice to pre-dry the material. For applications where surface appearance is critical, always be sure to pre-dry the material. When using a PPE/PA grade, pre-drying is especially important due to the high moisture absorption properties of PA.

Pre-drying should be done at the proper temperature range specified for each grade. A closed loop dehumidifying/drying hopper system is the most efficient equipment for pre-drying Xyron™. When using hot-air circulating ovens, Xyron™ pellets will be efficiently pre-dried when spread out in trays at a uniform depth of 20 to 30 mm.

Take care to ensure that Xyron™ is not pre-dried for longer than 8 hours. Excessive pre-drying may result in degradation of physical properties and color changes.

Regrind
Properly molded Xyron™ (sprues, runners, molded articles, etc.) may be reground, dried, and remolded without adverse effects. It is essential that material to be reground be free from oil, grease, dirt, and foreign substances, and shows no signs of degradation. Regrind levels up to 20% can be used successfully, but it is not advisable to use reground material for applications where surface appearances are critical.

Purging
High viscosity GPPS and Asaclean SA™ (available from Asahi Kasei Corporation and distributors) are recommended purging materials for all Xyron™ grades. Purging should be performed at temperature ranges appropriate for each grade.

Downtime
In order to prevent polymer degradation when molding operation is stopped or interrupted, the following measures are recommended.

  • Up to 30 minutes:
    Maintain cylinder temperature. Purge barrel using same material prior to the re-start of molding operation.
  • From 30 minutes to 12 hours:
    Decrease cylinder temperature to 200-220°C. Purge barrel using high viscosity GPPS. Upon commencement of molding operation, Purge barrel using material for molding after increasing cylinder temperature to the required level.
  • For downtime longer than 12 hours:
    Purge barrel with high viscosity GPPS, and shut down machine.

Mold release
Generally, mold release agents are not required for molding Xyron™ resins. In cases where mold release agents are needed due to the complex shape of the mold, minimal use is recommended. Silicone-based mold release agents such as Pelicoat B™ (manufactured and sold by Chyuko-Kasei, Co., Ltd., Japan) are recommended, as the chemical ingredients do not react with Xyron™.

DISCLAIMER OF WARRANTY AND LIABILITY
NOTICE:
Although the information and recommendations set forth herein are presented in good faith and believed to be correct, Asahi Kasei Corporation expressly disclaims any and all representations and warranties as to the completeness and accuracy thereof.

Information is supplied upon the EXPRESS CONDITION THAT THE PERSONS RECEIVING SAME WILL MAKE THEIR OWN DETERMINATION AS TO ITS SUITABILITY FOR THEIR PURPOSES PRIOR TO USE.

Asahi Kasei Corporation warrants only that this product will perform according to the technical specifications provided in the MSDS and other materials provided by it. NO OTHER REPRESENTATIONS OR WARRANTIES, EXPRESSED OR IMPLIED, WHETHER ORAL OR ARISING BY USAGE OF TRADE OR COURSE OF DEALING, INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OF FITNESS OR MERCHANTABILITY , shall be given any legal effect by this product or these materials.

This product has not been designed, tested, or intended for any use other than that for which it has been contracted for sale. This product is not warranted against injuries or damages of any kind caused by uses for which this product was not designed, tested, or intended.

Nothing contained herein is to be construed as a recommendation to use any product process, equipment or formulation in conflict with any patent, and Asahi Kasei Corporation makes no representation or warranty, express or implied, that the use thereof will not infringe any patent.

IN NO EVENT SHALL ASAHI KASEI CORPORATION BE LIABLE FOR ANY ANTICIPATED OR LOST PROFITS INCIDENTAL DAMAGES, CONSEQUENTIAL DAMAGES, COSTS TIME CHARGES OR OTHER LOSSES WHETHER BASED ON BREACH OF CONTRACT TORTIOUS CONDUCT, OR ANY OTHER THEORY, INCURRED IN CONNECTION WITH THE PURCHASE OR USE OF THIS PRODUCT.

ASAHI KASEI CORPORATION DOES NOT AUTHORIZE ANYONE TO ASSUME FOR IT ANY LIABILITY OR TO MAKE ON ITS BEHALF ANY ADDITIONAL WARRANTIES IN CONNECTION WITH THESE MATERIALS.

QWhat is the relationship between GF orientation and product design precautions?

A Glass fiber reinforced materials demonstrate glass fiber aligned in the direction of flow during molding. Due to the orientation of glass fibers in flow and crossflow directions, the molding shrinkage rate and strength are different. Care must be taken in designing products.

QWhat is actions for anti-warping?

A The warpage is generated by the size of the molding shrinkage rate of plastic materials and anisotropy (difference between the machine dirrection and the transverse dirrection). Generally, crystalline resins have a larger molding shrinkage rate and tend to cause warping, and glass fiber-reinforced resins tend to cause warping due to the degree of glass fibers orientation which occur at different degree in flow direction vs perpendicular to flow direction. Therefore, measures are taken to reduce the anisotropy of the molding shrinkage rate, by reducing the wall thickness change and also by improving the gate balance, etc., and also by increasing the molding temperature and the cooling time from the viewpoint of molding conditions. In terms of material, among the inorganic filler reinforcement types, the inorganic filler combination type with less anisotropy , spherical and plate-like morphologies is effective in preventing warpage.

QWhat is annealing and humidity control?

A Annealing refers to a heat treatment that is performed to stabilize dimensions or remove distortion after molding. Moisture control is a process for stabilize dimensions of hygroscopic material by forcibly moisture absorbed under a humidity atmosphere to and the like.

QHow to remove the mold deposit?

A Mold deposits (mold contaminants) are mainly composed of additives, monomers, oligomers, etc. contained in resins. In order to remove these mold deposit, it is common practice to wash them with a solvent that dissolves them well. Asahi Kasei's MD BusterTM and Buster MildTM are effective.

QWhat is the rework material and the condition used?

A Rework materials (recycled materials) are materials that are used by crushing sprue, runners, and defective products generated in the process. Generally, the crushed product is used as it is, or the crushed product is converted to pellet by extrusion. When rework materials are used, precautions such as the storage condition before and after rework, the number of rework times, the ratio of rework materials used (how much is mixed), and contamination with foreign matter are required.

QWhat is the effect of discoloration during drying on physical properties?

A The color may change regardless of the material depending on the drying conditions (hot air or vacuum drying, temperature, and time). Generally, it is better to use the recommended temperature and within the recommended time, but even if it is at the recommended temperature, it may discolor if it dries for a long time. Discoloration does not affect the physical characteristics, but if it dries at a temperature higher than the recommended temperature for a long time the color could change drastically.

QHow is the relationship between mold shrinkage rate and molding temperature?

A The higher the mold temperature, the greater the molding shrinkage rate in general. Molding shrinkage of polyamide resin (Leona) and POM (Tenac) of crystalline resin varies relatively greatly with mold temperature. The mold shrinkage ratio of mPPE (Xylon) of the amorphous resin changes relatively small depending on the mold temperature.

QHow is the relationship between molding conditions and crystallization?

A The crystallized state of the product molded at the recommended mold temperature where the crystalline resin is sufficiently melted above the melting point is recommended. If the mold temperature is extremely low, crystallization may not be sufficient and the original properties of the resin may not be obtained.

QWhat is the maximum thickness of the product and the minimum thickness?

A In order to avoid stress concentration, sink marks on the product and avoid molding troubles, it is recommended to design product with as uniform wall thickness as possible. Nominal wall thickness recommended for injection molding part is between 1-3mm.

QIs pre-drying necessary?

A Pre-drying prior to molding can prevent resin hydrolysis and defects on the surface of molded products (such as silver streaks) mainly by removing moisture. Therefore, it is necessary to perform preliminary drying for stable molding.

QWhat is the shape of GF?

A GF is an abbreviation for Glass Fiber. The shape is 5-15 μm in diameter. The length of GF in the pellet glassfiber-reinforced plastic varies depending on the conditions at which it is mixed into the plastic, and is generally a few millimeters.

QHow to read the grade numbers?

A Please contact our sales staff as it differs for each resin (Tenac, Leona, Xylon).

QWhat are halogenated flame retardants and non-halogenated flame retardants?

A Flame retardants that contain chlorine (Cl) and bromine (Br) in their structures are called halogenated flame retardants, and these are organic and inorganic flame retardants. Non-halogennated flame retardant is that does not contain chlorine or bromine.

QWhat is the difference between crystalline and amorphous resins?

A Crystalline resins are resins that exhibit an orderly arrangement of macromolecules. Amorphous resins do not have an order or specific arrangement of molecules. In crystalline resins, all of the macromolecules do not become crystalline, and the crystalline state and the amorphous state are mixed together. Specifically, crystalline resins include polyamide, polyacetal, and etc., and amorphous resins include polyphenylene ether, polycarbonate, and etc.. In general, crystalline resins are hard, rigid, and amorphous resins are characterized by excellent impact resistance and transparency.

QWhat kind of inorganic fillers are there?

A There are various fillers according to chemical composition, such as oxides such as silica, hydroxides such as calcium hydroxide, carbonates such as calcium carbonate, sulfates such as barium sulfate, and silicates such as talc, mica, and warastonite. There are also needle-like fillers like wollastonite in shape, plate-like fillers like talc and mica, and spherical and granular fillers like calcium carbonate.

QWhat is UL?

A UL is an American agencies and standards set up to address product safety testing to prevent electricity and fire incidents. Formally known as Underwriters Laboratories Inc, and Standards, there are certifications for synthetic resin materials, and the following five are related to synthetic resins.

1. UL-94: Combustion test for plastic materials: Depending on the thickness of the test piece, there is 94HB, 94V-2, 94V-1, 94V-0, and generally the thinner the wall thickness, the more easily it burns.

2. UL-746A: The following two are used in the specification for short-term physical property assessment of plastic materials: In the case of a thermoplastic resin, it is applied in a use environment in which a dynamic external force is applied, and is determined by a tensile impact value (Izod value in the case of a thermosetting resin).The labeling method is applied in a use environment in which only "Mech,with imp static" external force is applied, and in the case of a thermoplastic resin, it is determined by a tensile strength (bending strength in the case of a thermosetting resin), and the labeling method is "Mech,w/o imp"

3. UL-746B: The following are used in the specification for long-term physical property assessment of plastic materials: Rated temperature Indicates a constant temperature at which the initial physical properties (e.g., electrical and mechanical properties) drop to 50% when exposed to air at a constant temperature for 0.1 million hours. Indicates RTIs (Relative Thermal Index) at °C.

4. UL-746C: UL-ranked by the rating level in the standard for evaluating the electrical use of plastic materials. (PCL:Performance Level Categories) uses the following five.
(1) Hot-wire ignitability: The degree to which the material is heated and ignited is evaluated in the number of seconds of ignition, and the indication is in five levels from 0 to 5 in the HWI (Hot-Wire Ignition) PCL-rank. The smaller the number, the better.
(2) Large current arc ignitability: The degree to which the material ignites by arc discharge is evaluated by arc number, and the indication of HAI (High-Ampare Arc Resistance) PCL rank is better as the number is smaller in 5 stages from 0 to 4.
(3) Arc Resistance: The degree to which a conductive path is formed, attributed to arcs according to ASTM D495, is evaluated in seconds, the indicia are shown as D495, and the PCL rank is 8 steps from 0 to 7, and the smaller the number, the better.
(4) High-voltage tracking: Repeated high-voltage, low-current arcing on the surface of the material, evaluating the degree to which the material can cause a conductive path, evaluating at the tracking speed (millimeters/minute), labeling is HVTR(High Voltage Arc Tracking Rate.
(5) Tracking Resistance: Evaluate the degree of voltage that causes the material to create a permanent carbonized conductivity path, the indication is CTI (Comparative Tracking Index), the PCL-rank is six steps from 0 to 5, the smaller the number, the better.

5. UL-746D: Standards for plastic-material assemblies

QWhat is the difference of weather and light resistant?

A Weather resistance indicates resistance to weather conditions (environmental gases such as sunlight, rain, air temperature, humidity, NOX, SOX, etc., dust, etc.), and light resistance indicates resistance to only light (sunlight, fluorescent lamps, etc.).

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