Material Overview

Recommended O-Ring Shelf Life for Chemical Transport Applications

Material

Trade Name


Abbreviations		Shelf Life
ASTM	ISO	Initial Storage Period	Extension Storage Period

Operating Temperatures*
Normal		Short Period
°C	°F	°C	°F

Chloroprene Rubber

Baypren®
Neoprene®

7 Years

3 Years

-35 to +90
(special types
-55 to +90)

-31 to +194
(special types
-67 to +194)

up to +120

up to +248

Ethylene Propylene
Diene Rubber

Dutral®
Keltan®
Vistalon®
Buna EP®

EPDM

10 Years

5 Years

Peroxide cured EPDM Types
-45 to +150	-49 to +302	up to +175	up to +347
Sulfur cured EPDM Types
-45 to +130	-49 to +266	up to +150	up to +302

Perfluoro Rubber

Isolast®
Kalrez®

FFKM

20 Years

5 Years

-25 to +240

-13 to +464

up to +325

up to +617

Fluorocarbon Rubber

Dai-El®
Fluorel®
Tecnoflon®
Viton®

FKM

10 Years

5 Years

-20 to +200
(special types
-40 to +200)

-4 to +392
(special types
-40 to +392)

up to +230

up to +446

Hydrogenated
Acrylonitrile-Butadiene
Rubber

Therban®
Zetpol®

HNBR

7 Years

3 Years

-30 to +140
(special types
-40 to +140)

-22 to +284
(special types
-40 to +284)

up to +160

up to +320

Butyl Rubber

Esso Butyl®

IIR

7 Years

3 Years

-40 to +110
(special types
-40 to +200)

-40 to +230
(special types
-40 to +392)

up to +120

up to +248

Acrylonitrile-Butadiene
Rubber (Nitrile Rubber)

Europrene®
Krynac®
Nipol N®
Perbunan NT Breon®

NBR

7 Years

3 Years

-30 to +100
(special types
-60 to +90)

-22 to +212
(special types
-76 to +194)

up to +120

up to +248

Silicone Rubber

Elastoseal®
Rhodorsil®
Silastic®
Silopren®

VMQ

10 Years

5 Years

-50 to +175

-58 to +347

up to +230

up 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.

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Material Overview

Recommended O-Ring Shelf Life for Chemical Transport Applications

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.

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You are already logged in

Material Overview

Recommended O-Ring Shelf Life for Chemical Transport Applications

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.