Shelf Life for Rubber Products

Per the Rubber Manufacturer’s Association (RMA) findings, heat and moisture are the most common hazards to affect sheet rubber in the warehousing environment. With many variables involved, it is impossible to guarantee rubber products for any specific period of time. In addition, other special situations can cause deterioration — such as storage of rubber close to ozone producing electrical equipment (i.e. generators).

Our best time estimate allows for no appreciable change in physical properties for a six-month period, and if stored in a favorable environment (cool & dry area) — at 70°F preferably covered so light, radiation, and humidity/vapors cannot get to the material — the material should have a shelf life as follows:

Silicone Silicone 20 Years
Viton® Fluoroelastomer
Butyl Isobutylene-isoprene 5-10 years
EPDM Ethylene-propylene
Neoprene Polychloroprene
Nitrile / Buna-N Acrylonitrile-butadiene
Commercial Grade Neoprene Polychloroprene Blend 3-5 years
Commercial Grade Nitrile / Buna-N Acrylonitrile-butadiene Blend
Natural Rubber  
SBR Styrene-butadiene
Synthetic Natural Rubber Polyisoprene


Rubber is a flexible material affected by temperature and humidity. Distortion can occur when parts are packed for shipment. This distortion makes it difficult to measure parts property. Some distortion can be minimized by storing parts as unstressed as possible for 24 hours at room temperature.