O-Ring Shelf Life

O-Ring Shelf Life

The information in ARP 5316, and the chart below, is intended to be utilized by those organizations who do not already have specific recommendations for the control of elastomeric seals. It should be noted that the packaging of the elastomeric seals prior to assembly into a product is an integral part of the controlled storage procedure. It provides a positive means of product indentity from the time of manufacture, to the time of assembly.

ELASTOMER FAMILY ASTM Abbreviation

ARP 5316
Recommended Shelf Life

Aflas®

-

Unlimited
Butyl Rubber, Isobutylene Isoprene

IIR

Unlimited
Chemraz: 504, 505, 514, 526

CHEM

30 Years
Chloroprene (Neoprene®)

CR

15 Years
Epichlorohydrin (Hydrin®)

ECO

NA
Ethylene Acrylic (Vamac®)

AEM

15 Years
Ethylene Propylene, EPDM or EP

EP

Unlimited
Fluorocarbon (Viton®)

FKM

Unlimited
Fluorsilicone

FVMQ

Unlimited
Hydrogenated Nitrile, HNBR or HSN

HNBR

15 Years
Nitrile (Buna-N or NBR)

NBR

8- 10 Years
Polyacrylate

ACM

15 Years
Polyurethane (Polyester or Polyether)

AU / EU

5 Years
Silicone

VMQ

Unlimited
Styrene Butadiene (Buna-S)

SBR

3 Years

Download this O-Ring Shelf Life Data (PDF)

The data shown here are shown as an engineering guide only and should not be used for the purpose of establishing performance limits. These values were obtained using established standard test procedures and are believed to be reliable. However, due to the variables that may be encountered in actual use, it is always advisible to test the material under actual service conditions before specification.