Rating

Description

Volume Change

Comments

Rating Satisfactory

Description Little or no effect

Volume Change < 10%

Comments Elastomer may exhibit slight swelling and/or loss of physical properties under severe conditions

Rating Fair

Description Possible loss of physical properties

Volume Change 10 - 20%

Comments Elastomer may exhibit swelling in addition to a change in physical properties. May be suitable for static applications

Rating Severe Effects

Description Noticeable change

Volume Change 20 - 40%

Comments Elastomer exhibits a noticeable change in swelling and physical properties. Questionable performance in most applications.

Rating Unsatisfactory

Description Excessive change

Volume Change > 40%

Comments Elastomer not suitable for service

Rating No Data Available

Description -

Volume Change -

Comments -

Chemical Name

BoKure™
Urethane
(PU)

Chloroprene
(CR)

Ethylene -
Propylene
(EPDM)

Fluorocarbon
(FEPM - ETP)

Fluorocarbon
(FKM)

Fluorosilicone
(FVMQ)

Hydrogenated Nitrile
(HNBR)

Nitrile
(NBR)

Perfluoroelastomer
(FFKM)

Polytetrafluoroethylene
(PTFE)

Silicone
(VMQ)

Tetrafluoroethylene -
Propylene
(FEPM)

Acetaldehyde

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Acetaldehyde

Note:
The information contained in this chemical compatibility guide is believed to be reliable but has been compiled from numerous industry sources and should be used as a general reference guide only. Tests are typically conducted at room temperature. Numerous factors including environment, temperature, exposure time and other conditions can greatly affect the material rating. If you would like more information on chemical compatibilities please contact a Hi-Tech Seals sales associate directly. Hi-Tech Seals Inc. assumes no responsibility whatsoever for use of this guide.