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PermaFlex® 75

Technical Datasheet | Supplied by Rauh Polymers
PermaFlex® 75 by Rauh Polymers is a copolyester elastomer (COPE) grade. Exhibits excellent hydrolytic stability, chemical- , tear- , taber abrasion- , cut- and compression resistance. Designed for injection molding process. PermaFlex® 75 is possibly suitable for automotive, film, consumer products, energy absorption, medical, food, electrical and electronic applications. Can be used as a modifier for oils, asphalts and other polymers, and has usage in high temperature adhesives and coatings. Complies with FDA and UL 94 HB Flame Rating. UL 94 V-0 Flame Rated grades are also available.
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Product Type
Polyester TPE > COPE
Product Status
COMMERCIAL
Applications/ Recommended for
  • Packaging > Industrial - Films, standard
  • Households products/ Consumer Goods
  • Healthcare / Medical
  • Electrical markets
  • Electronics / Computers
  • Automotive
  • Injection molding - thermoplastics

PermaFlex® 75 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Specific Gravity
1.25 g/cm3
ASTM D792
Linear Mold Shrinkage
0.005 - 0.006 in/in
(Flow Direction) 
ASTM D955
Linear Mold Shrinkage
0.127 - 0.152 mm/mm
(Type 1 Bar) 
ASTM D955

PermaFlex® 75 Processing Guidelines

Injection Properties

Value & Unit
Test Condition
Test Method
Hold Pressure
10.000 - 11.000 psi
Injection Pressure
13.000 - 14.000 psi
Injection Speed
Medium -
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