Elastomers Chemical Compatibility Chart, a New Resource
The new ISM Elastomers Chemical Compatibility Chart is now available as a downloadable PDF
Product development and routine maintenance require choosing and sourcing parts. Knowing the right questions to ask helps ensure the correct part is ordered. Our new Elastomers Chemical Compatibility Chart is another in a series of ISM technical resources that help make component selection faster and easier.
Chemicals in the operating environment
Systems and their operating environments frequently expose flow control components to aggressive chemicals and cleaners. Many solvents and lipids can be harsh chemicals. They could cause premature wear to the elastomers used in duckbill and diaphragm check valves or O-ring seals.
Modular Check Valves
We've taken spring-loaded check valves to a whole new level. Mix and match imperial and metric connections. Watch the video.
Factors that may influence chemical effects on elastomers
- Elastomer type
- Durometer or hardness
- Chemical class
- Type of application
- Exposure time
- Hardening because of aging
Elastomers listed in the new ISM Elastomers Chemical Compatibility Chart
- Buna N (Nitrile, NBR)
- EPDM (Ethylene Propylene)
- Kalrez® (FFKM)
- Fluorosilicone (FVMQ)
- Hydrin® (ECO, Epichlorohydrin)
- Hytrel® (TPE)
- Natural Rubber (NR)
- Neoprene (CR)
- Polyurethane (PUR)
- Silicone and Viton® (FKM)
Evaluating chemical resistance
It is best to test parts in actual conditions because the chemical resistance of elastomers can be difficult to predict. ISM offers samples to our customers as a way to assist their testing and decision-making. These can be requested when browsing our catalog.
Factors that make it difficult to predict how elastomers react to chemicals
- Exposure time
- Chemical combinations
- Chemical concentrations
Related blog post
Elastomers and Rubbers – Is There a Difference?
What kinds of problems have you had finding the right seal or check valve diaphragm that could be sampled and tested in your application? Help us by telling others what you learned.
Have questions about chemicals and material compatibility? If so, send me an email - email@example.com. You can also ask questions using the comments section below.
About the author
Steven C. Williams, BS, is the technical writer and an inbound marketing specialist at Industrial Specialties Manufacturing (ISM), an ISO 9001-2015 supplier of miniature pneumatic, vacuum and fluid circuitry components to OEM's and distributors all over the world. He writes on technical topics related to miniature pneumatic and fluidic components as well as topics of general interest at ISM.