Polycarb - Materials - Technical Information

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Polycarb - Materials - Technical Information - Hobby and Engineering

Polycarbonate

MBA Products made from this material
Timing Pulleys

A colourless amorphous engineering thermoplastic notable for high impact resistance. It has good temperature resistance, good dimensional stability and low creep. Chemical resistance is limited and it is prone to environmental stress cracking. It has poor fatigue and wear properties in it's neutral state, but these properties are improved with the addition of fibreglass. MBA Polycarbonate pulleys are fibreglass reinforced.

Properties of Fibreglass Reinforced Polycarbonate

Physical Properties
PROPERTY	UNIT	VALUE
Density	g/cm³	1.43
Surface Hardness	Rockwell M	70
Tensile Strength	MPa	70
Tensile Modulus	GPa	5.8
Izod Impact Strength	J m^-1	600-850
Elongation at Break	%	3
Max Operating Temp.	^oC	140
Water Absorption	%	0.28 Over 24 Hours
Flammability		V-1
Volume Resistivity	ohm.cm	10¹⁶
Dielectric Strength	kV/mm^-1	30
Dissipation Factor	@ 1MHz	0.009
Dielectric Constant	@ 1MHz	3.3
Heat Deflection Temp. @ 0.45 MPa	^oC	147
Heat Deflection Temp. @ 1.80 MPa	^oC	142

Chemical Resistance
Chemical	Resistance
Acids (Concentrated)	Fair
Acids (Dilute)	Good
Alcohols	Good
Alkalis	Poor
Aromatic hydrocarbons	Poor
Greases and Oils	Good
Halogens	Poor
Ketones	Poor

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

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Tables and information on this web site should be read as a general guide only. The relevant standards should be consulted to ensure accuracy

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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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