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Petp - Materials - Technical Information - Hobby and Engineering

PETP - Polyethylene Terephthalate Polyester

MBA Products made from this material
Rod, Bushes

PETP - Polyethylene Terephthalate Polyester is a very hard and stiff material with little water absorption. MBA supply Polyester under the Dotmar tradename ErtalyteTM

Properties of PETP

Physical Properties
PROPERTY UNIT VALUE
Density g/cm3 1.3-1.4
Surface Hardness Rockwell M 94-101
Tensile Strength MPa 80
Tensile Modulus GPa 2-4
Max Operating Temp. oC 115-170
Water Absorption % 0.1
Oxygen Index % 21
Flammability  : Self Extinguishing
Volume Resistivity ohm.cm >1014
Dielectric Strength kV.mm-1 17
Dissipation Factor @ 1kHz 0.002
Dielectric Constant @ 1kHz 3.0
Heat Deflection Temp. @ 0.45 MPa oC 115
Heat Deflection Temp. @ 1.80 MPa oC 80
Chemical Resistance
Chemical Resistance
Acids (Concentrated) Good
Acids (Dilute) Good
Alcohols Good
Alkalis Poor
Aromatic hydrocarbons Fair
Greases and Oils Good
Halogens Good
Ketones Good

Note! Property values are typical and should be used only as a guide to selection of materials and not as purchase specifications.

You can purchase online at Hobby & Engineering Supplies.

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Hobby and Engineering Supplies offers thousands of products including remote controlled cars, planes, boats, and helicopters. We stock spare parts for remote controlled models. Our range includes the popular Solarbotics solar model kits and spares. We also distribute the full range of miniature engineering products from Miniature Bearings Australia. This range includes small bearings, timing pulleys, timing belts, seals, o-rings, gears and more. Also available from our store in Capalaba Queensland are a full range of lubricants, adhesives, balsa wood and plastic rod and sheet materials. See our Online Catalogue for more information. Our main business is handled from our sales counter and showroom at 3239 Old Cleveland Road Capalaba West, Queensland, Australia, but we also sell by phone, fax, online and mail order. We also offer all of our hobby and engineering parts through our online store.

Using the links at the top of this page you will find extensive information including catalogues (Products and Store link), technical data, and other product specific information.

We also suggest that you may want to take a look at the technical information sites - Shafting Information, Couplings Information and Gearboxes Information.

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