Technical - O-Ring Shelf Life

Shelf Life Guideline

Shelf LifeThese numbers represent average shelf life under normal dry/cool storage conditions, away from direct sun / UV rays, and should be used for guidance/reference purposes only.

If the shelf life has expired, products should be carefully evaluated for possible use as originally intended before discarding products solely based on the suggested shelf life. Shelf life varies depending on product specifications and compound design.

Shelf Life Guideline [PDF]

Material
ASTM Abbreviation
Shelf Life
Aflas®
 
20 Years
Butyl Rubber, Isobutylene Isoprene
IIR
20 Years
Chemraz: 504, 505, 514, 526
CHEM
20 Years
Chloroprene (Neoprene®)
CR
15 Years
Compressed Non-Asbestos Sheet Products
 
5 Years
Cork
 
2 Years
Cork & Rubber
 
5 Years
Epichlorohydrin (Hydrin®)
ECO
7 Years
Ethylene Acrylic (Vamac®)
AEM
10 Years
Ethylene Propylene, EPDM or EP
EP
20 Years
Felt
 
5 Years
Fiberglass
 
10 Years
Fluorocarbon (Viton®)
FKM
20 Years
Fluorsilicone
FVMQ
20 Years
Graphoil
 
Unlimited
Gum Rubber
 
3 Years
Gylon
 
20 Years
Hydrogenated Nitrile, HNBR or HSN
HNBR
15 Years
Hypalon
 
5 Years
Nitrile (Buna-N or NBR)
NBR
20 Years
Nylon
 
5 Years
Polyacrylate
ACM
15 Years
Polyurethane (Polyester or Polyether)
AU / EU
5 Years
Polypropylene
 
5 Years
Poron
 
5 Years
Poron Foam Tape & ThinStik products
 
2 Years
Silicone
VMQ
20 Years
Styrene Butadiene (Buna-S)
SBR
5 Years
Teflon
VTFE
20 Years
Vellumoid
 
5 Years