Features
Thermoplastic Polyester Elastomer PELPRENE™
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A comprehensive range of performance across four composition types
A wide range of hardness
Excellent oil and chemical resistanceExcellent bending fatigue resistanceExcellent low temperature properties
Compatible with injection, extrusion, and blow molding and more, offering a wide range of possibilities for applications

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Spec・Quality
The physical properties can be found in the Product search on the top page of PELPRENETM.

PELPRENE™ Main GradesTypeCategory

GradeFeature

P-30B

Low Hardness

P-40B

Low Hardness

P-40H

Low Hardness

P-55B

Medium Hardness

P-70B

Medium Hardness

P-90B

Medium Hardness

P-150BHigh Hardness

P-280BHigh Hardness

E-450BHigh Hardness

P-75M

Injection, Low Hardness

P-150M

Injection, Medium Hardness

Extrusion

P-90BD

Medium Hardness

Blow Molding

P-47D-HW

Fatigue Resistant

S-2001

Injection, Medium Hardness

S-3001

Injection, High Hardness

S-6001

Injection, High Hardness

S-6002FR2High Hardness, Flame Retardant(V-0 equivalent/1.6mm thickness)

EN-1000

Medium Hardness, Good Dimensional Stability

EN-2000

High Hardness, Good Dimensional Stability

EN-3000

High Hardness, Good Dimensional Stability

EN-5000

High Hardness, Good Dimensional Stability

C-2003Medium Hardness, Injection, Hydrolysis Resistant

C-2005

Medium Hardness, Blow molding, Hydrolysis ResistantInjection

P-TypeAdhesion

S-TypeEN-Type

C-TypeHeat Aging ResistantChemical ResistantSuper Heat Aging
Resistant

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Spec・Quality
Comparison of PELPRENE™ with Rubber, Plastic, and Metal

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Spec・Quality
Temperature ranges of various elastomers

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Spec・Quality
Elastic modulus of PELPRENE™ types P, S, EN, and C

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Spec・Quality
Thermal Durability of PELPRENE™
The figure shows thermal durability of general purpose PELPRENE™ grades. Thermal durability for each grade is defined as
the time for which the elongation drops to one half of its initial value in a high temperature aging test.

Test piece
JIS #3 dumbbell
Thickness 2mmt 2mm

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Processing
PELPRENE™ can be used for injection, extrusion, and blow molding using conventional equipment. It's also compatible withcompression molding, melt casting, and rotational molding. Additionally, PELPRENE™ can be post-processed by painting,printing, vacuum metallizing, and cathode spattering, along with hot-melt adhesion of molded articles. Its pellets being
applies packed in a moisture-proof bag after drying, PELPRENE™ can be processed as received. However, unused ordampened pellets should be dried again for 4 or more hours at 100-120°C before use.

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ProcessingStandard Injection Molding Temperature
Example of applicable grades

P-30B～P-40H

P-55B～P-90B

P-150B～P-280B
S-2001～S-3001
EN-1000
C-2003P-450B
S-6001～S-9001
EN-2000～EN-3000

EN-5000

C1

160～180℃

190～210℃

200～230℃

220～240℃

230～250℃

C2

180～200℃

200～230℃

220～240℃

230～250℃

250～270℃

C3

180～200℃

200～230℃

220～240℃

230～250℃

250～270℃

NZ

180～200℃

200～230℃

220～240℃

230～250℃

250～270℃

Mold Temperature

20～40℃

20～60℃

20～60℃

20～60℃

20～60℃

Standard Extrusion Molding Temperatures
Example Grades

P-90BD

Standard Blow Molding Temperatures
Relevant Grade Examples

P-47D-HW

Rear

180～200℃

Rear end

200～220℃

Middle200～220℃

Middle part220～230℃

Front

200～220℃

Front part220～240℃

Die temperature

200～220℃

Mold Temperature

20～40℃

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Processing
Mold Shrinkage

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Processing
Reuse of PELPRENE™
Sprues and runners of PELPRENE™ can be recycled via remolding. To ensure molded parts of consistent quality, thoroughly
dry and pulverize material to be recycled, then blend with virgin pellets up to around 30% recycled content. Note that theratio of recycled material that can be used varies with molding conditions. Contact us for details.

PELPRENE™ Dry and Conditioned Data

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Processing
Injection Molding Troubleshooting
TroubleSink marks
Condition

DesignMachineWarpage,
Deformation

Condition

Mold

DesignFlash
Condition

Mold
Burn marks
Condition
Mold
DesignWelding line
Condition
Mold
Poor surface
appearance
Condition

Mold

Cause
1. High resin temperature
2. High/low mold temperature
3. Low holding pressure
4. Insufficient holding pressure time
5. Insufficient cooling time
6. No cushion
1. Small runner/ gate
2. Unsuitable gate location
1. Back-flow during injection
1. Unsuitable injection conditions
2. Insufficient holding pressure time
3. Insufficient Cooling time
4. Temperature difference between cavity and core

1. Unsuitable gate location
2. Extreme change in part thickness
3. Not enough gates for the part size
1. High resin temperature
2. High injection speed
3. High holding pressure
4. Low mold clamping force
5. Filling resin Volume is too high
1. Mold surface doesn't mate properly
1. High resin temperature
2. Air entrapment
3. High injection speed
4. Filling resin volume is too high
1. Inadequate venting
1. Unsuitable gate location
2. Small gate size
1. Low resin temperature
2. Low mold temperature
3. Low injection speed

Countermeasure
1. Reduce the cylinder temperature
2. Set the mold temperature accordingly
3. Increase the holding pressure
4. Increase the holding pressure time
5. Increase the cooling time
6. Make cushion 5-10mm
1. Enlarge the runner/gate size
2. Relocate the gate to a thicker area
1. Inspect or exchange the backflow valve
1. Increase the injection pressure/speed
2. Increase the holding pressure
3. Increase the cooling time
4. Control the temperature of cavity and core separately
1. Balance ejector pin placement
2. Enlarge ejector pin size
3. Increase the draft angle
1. Change gate location
2. Even out the part thickness
3. Increase the number of gates
1. Reduce the resin temperature
2. Reduce the injection speed
3. Reduce the holding pressure
4. Increase the mold clamping force
5. Set the cushion about 5mm
1. Modify the mold
1. Reduce the resin temperature
2. Reduce the screw rotation
3. Reduce the injection speed
4. Decrease the residence time
1. Increase gas ventilation
1. Change the gate location to make the welding line on the PL
2. Enlarge the gate size
1. Increase the cylinder temperature
2. Increase the mold temperature
3. Increase the injection speed

1. Inadequate holding pressure

1. Increase gas venting and/or change gate location to move the weld line onto the parting line.

1. Low resin temperature
2. Low mold temperature
3. Low injection speed
4. Inadequate holding pressure
5. Insufficient amount of resin for fill1. Inadequate holding pressure
2. Unclean mold

1. Increase the cylinder temperature
2. Increase the mold temperature
3. Increase the injection speed
4. Increase the holding pressure/time
5. Make cushion 5-10mm
1. Increase the holding pressure/time
2. Clean the mold

1. Unsuitable ejector pin placement
2. Insufficient ejector pin size

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Processing
SafetyMolding Operation• When purged resin contains a large quantity of gas or steam, the resin may have been insufficiently dried. We recommend re-drying the resin.
• Resin held in the cylinder for an extended period of time may lose viscosity or experience other impacts on quality. Please resume molding only
after
thoroughly replacing the resin that has been held too long in the cylinder with new resin.
• When switching from PELPRENE™ to another polymer, replace the PELPRENE™ with polyethylene or polypropylene to purge. Local andgeneral ventilation
are recommended.
• Keep hands and face away from the nozzle during molding to prevent burn injury.
• Please ensure proper ventilation, as a small amount of gas and fine dust may be produced during molding.

Protective equipment• Wear appropriate protective equipment such as protective clothing, safety glasses, and gloves to protect eyes and skin from the molten resin.

Emergency Response• Should molten resin adhere to the skin, cool the area immediately with cold water or an ice pack and then seek medical attention. Do not
attempt to peel
the resin off of the skin.

Other• Do not let molten resin touch electric wires or hoses.
• Molten resin reaches high temperatures and can catch fire if it forms large clumps when purging. Break up large clumps and allow to cool before
disposal.
• Spilled pellets can be a slipping hazard, so be sure to clean them off the floor immediately.

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NotesDisclaimer•
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All of the property data is based on natural color or general black. Data may vary depending on color.
All information in this technical data sheet is based on the experiences of TOYOBO MC Corporation.
These information may vary depending on mold condition and application.
There may also be laws and regulations depending on intended use. Please be careful of this things when using thisproduct.
If this material is to be used for medical, military, or food contact applications, or if it is to be used in a product where adefect in the product is likely to result in death, bodily harm, or substantial property damage, please contact us separately
beforehand.
Export of our materials and products using our materials must comply with the Foreign Exchange and Foreign Trade Law
and other relevant laws and regulations.
Chemical substances used in this material may be regulated by laws and regulations related to chemical substances ineach country, and separate applications may be required or import/export may not be allowed. If you are an importer orexporter of this material, please inquire about compliance with regulations in the relevant country.
The information of this document is based on materials, methods and data available at the time of document preparation.
Please note that the information is subject to revision without prior notice based on subsequent findings.

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