Full Name

Polyester Ertalyte or PETP

Basic Properties

High mechanical strength, stiffness & hardness. Wear resistance is better than that of Nylon grades. Insulates well against electricity and resistant to acid. Suitable for contact with food & is physiologically inert.

Common Uses

With very similar properties to Acetal, this product is used in precision gears, bushes, bearings and mechanical components. It has a high operating temperature with good dimensional stability.


Polyester PETP Ertalyte Physical Properties 
Specific Gravity Units g/cm3 1.39
Continuous Operating Temperature Unit °C - 5,000Hrs / 20,000Hrs 115/110
Tensile Strength Units MPa 90
Impact Resistance Units Charpy KJ/m2 >50
Impact Resistance Units Izod KJ/m2 2
Hardness Units Rockwell M 96
Co-efficient of Thermal Expansion Units mm/(mmxK) x 10-6 avg value 23-60°C 60
Dielectric Strength Units KV/mm 22
Surface Resistivity Units Ohms 1x1014
Flammability Oxygen Index % 25
Flammability UL94 HB
FDA Approved Yes

Available Products


Polyester Ertalyte sheet

Thickness: 2 to 50mm

Sizes: 1000 x 610mm / 2000 x 610mm / 3000 x 610mm



Polyester Ertalyte rod

Outside diameter: 12 to 200mm



Polyester Ertalyte tube

Outside diameter: 20 to 180mm


machined parts

Machined Polyester Ertalyte parts

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