Material Overview

Recommended O-Ring Shelf Life for Chemical Transport Applications

MaterialTrade Name
AbbreviationsShelf Life
ASTMISOInitial Storage PeriodExtension Storage Period
Operating Temperatures*
NormalShort Period
°C°F°C°F
Chloroprene RubberBaypren®
Neoprene®
CRCR7 Years3 Years
-35 to +90 (special types -55 to +90)-31 to +194 (special types -67 to +194)up to +120up to +248
Ethylene Propylene Diene RubberDutral®
Keltan®
Vistalon®
Buna EP®
EPDMEPDM10 years5 years
Peroxide cured EPDM Types
-45 to +150-49 to +302up to +175up to +347
Sulfur cured EPDM Types
-45 to +130-49 to +266up to +150up to +302
Perfluoro RubberIsolast®
Kalrez®
FFKMFFKM20 years5 years
-25 to +240-13 to +464up to +325up to +617
Fluorocarbon RubberDai-El®
Fluorel®
Tecnoflon®
Viton®
FKMFKM10 years5 years
-20 to +200 (special types -40 to +200)-4 to +392 (special types -40 to +392)up to +230up to +446
Hydrogenated Acrylonitrile-Butadiene RubberTherban®
Zetpol®
HNBRHNBR7 years3 years
-30 to +140 (special types -40 to +140)-22 to +284 (special types -40 to +284)up to +160up to +320
Butyl RubberEsso Butyl®
IIRIIR7 years3 years
-40 to +110-40 to +230up to +120up to +248
Acrylonitrile-Butadiene Rubber (Nitrile Rubber)Europrene®
Krynac®
Nipol N®
Perbunan NT Breon®
NBRNBR7 years3 years
-30 to +100 (special types -60 to +90)-22 to +212 (special types -76 to +194)up to +120up to +248
Silicone RubberElastoseal®
Rhodorsil®
Silastic®
Silopren®
VMQVMQ10 years5 years
-50 to +175-58 to +347up to +230up to +446
NOTE 1: If the storage temperature is over or under 25 °C (77 °F) this will influence the storage time. Storage at 10 °C (50 °F) higher will reduce the storage time by about 50%. Storage at 10 °C (50 °F) lower will increase the storage time by around 100%.
NOTE 2: In application areas such as aerospace, the storage periods can differ from this specification. These specific storage conditions have to be agreed between the supplier and the buyer.
*These are general temperature ranges. For ranges of specific compounds, please contact Trelleborg Sealing Solutions Chemical Transportation.