JP Polymer Sheeting Ltd

S H E E T I N G - S E L E C T I O N C R I T E R I A

S E L E C T T A B L E

Application		Natural/SBR	Neoprene	Nitrile	EPDM	Butyl	Hypalon®	Silicone	Viton®
Petrol		Poor	Poor	Good	Poor	Poor	Poor	Poor	Excellent
Lubricating Oils		Poor	Fair	Good	Poor	Poor	Fair	Good	Excellent
Acid		Fair	Fair	Good	Excellent	Excellent	Excellent	Fair	Good
Alkali		Fair	Fair	Fair	Good	Excellent	Excellent	Fair	Fair
Hydraulic Fluid	Phosphates	Poor	Poor	Poor	Good	Good	Fair	Good	Poor
Hydraulic Fluid	Silicates	Poor	Good	Good	Fair	Fair	Good	Poor	Good
Abrasion Resistance		Excellent	Good	Good	Good	Good	Good	Fair	Good
Tear Strength		Good	Good	Good	Fair	Good	Fair	Poor	Fair
Impact Resistance		Excellent	Good	Fair	Good	Good	Good	Fair	Fair
Resilience		Excellent	Good	Good	Good	Fair	Good	Poor	Fair
Impermeable to Gases		Fair	Good	Good	Good	Excellent	Excellent	Poor	Excellent
Compression Set		Good	Good	Good	Fair	Fair	Fair	Good	Good

This is a general guide only. If in doubt please consult.

M A T E R I A L T O L E R A N C E S A N D Y I E L D S

In today's competitive market yields are of vital importance. With the above in mind we have a policy of stocking a wide range of thicknesses and roll widths to give our customers maximum choice with clear tolerance definitions.

Thickness Tolerances
Over	Upto	Tolerance +/-
0.5 mm	2 mm	0.2 mm
2 mm	3 mm	0.3 mm
3 mm	6 mm	0.4 mm
6 mm	10 mm	0.5 mm
10 mm	15 mm	0.8 mm
15 mm	25 mm	1.0 mm

Roll Length Tolerances
Length (mm)	Tolerance +/-
1000 mm	50 mm
5000 mm	250 mm
10000 mm	500 mm
20000 mm	1000 mm

Roll Width Tolerances
Length (mm)	Tolerance +/-
900 mm	18 mm
1000 mm	20 mm
1220 mm	24 mm
1300 mm	26 mm
1400 mm	28 mm

Please note:
The information, figures, calculations, test values and data contained in this catalogue - which we use to best advise our customers - correspond to current engineering standards. These data are results of long years of tests and trials. As individual operation conditions influence the application of each sheet, the information in this brochure can only be seen as a rough guideline. In the individual case it is the sole responsibility of the customer to evaluate requirements, in particular if specified properties are sufficient for use.

Our qualified engineers are available to discuss difficult problems with you.

As we cannot have any influence over how our products are used, they are used entirely at the user's own risk. We do of course guarantee the quality of our products according to general sales conditions, available on request. Subject to change and error. The mentioned properties are guiding values.

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