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Cup Materials

Elastomer Properties

CODE ELASTOMER WEAR RESISTANCE WORKING TEMPERATURE** WEIGHT RATIO*** COLOR
N Nitrile
(Buna-N)
Excellent -40F to 275F
-40C to 135C
1.0 Black
V Flourocarbon
(Viton)*
Excellent 40F to 450F
-4C to 230C
1.71 Grey
S Silicone Good -100F to 400F
-70C to 205C
1.0 Orange
CS Conductive
Silicone
Good -100F to 400F
-70C to 205C
1.0 Black
* Viton is a registered trademark of Du Pont Dow Elastomers.
**Intermittent service may possibly be higher. Determine via testing under actual conditions.
***Weight of nitrile cup without fitting is tabulated. Use the weight ratio multiplier to calculate the weights of Silicone and Viton cups.


Elastomer Selection

All EDCO suction cup materials are specifically formulated to be non-marking and no mold release agents are used in the molding process.

If the cup is exposed to oil or chemicals, select the most compatable material. Use Silicon for extremely hot or cold environments.
Use Viton (flourocarbon) for high temperature applications in automotive, appliance, or other plants where silicon is not allowed.

Conductive Silicone is used to ground parts such as electronic chips to eliminate static electricity.