Shelf Life Guide Lines
As a fully integrated manufacturer, Goodyear Rubber is equipped to formulate custom compounds specifically designed for your application.
Rubber Polymer Shelf Life Guide Lines
|Common or Trade Name||Type of Rubber Polymer||ASTM D 1418 Designation||ASTM D 2000 Classification||Recommended Shelf Life|
|Silicone||Silicone||Q||FE, GE||20 years|
|Nitrile, Buna-N||Acrylonitrile-butadiene||NBR||BF, BG, BK, CH||5 to 10 years|
|EPDM, EP Rubber||Ethylene-propylene||EPDM||BA, CA|
|SBR||Styrene-butadiene||SBR||AA, BA||3 to 5 years|
|Synthetic Polyisoprene Rubber||Polyisoprene||IR||AA|
|Nitrile blends||Acrylonitrile-butadiene||NBR||BF, BG|
- 3.1 Age resistance – Resistance to deterioration in storage by environmental factors, such as heat, light and ozone.
- 3.2 Cure date – The date the rubber is fully cured. Two methods in expressing the cure date are as follows:
- a. Shelf life to a maximum of 3 years. Cure date stated in terms of month of calendar year and the year, i.e., 6-83.
- b. Shelf life in excess of 3 years. Cure date stated in terms of the quarter of calendar year and the year, i.e., 2Q-83.
- 3.3 Acceptance Life – This is the maximum life at the age of acceptance. The age limit at acceptance for hoses and hose assemblies is 32 quarters. See SAE AS1933 for aerospace hoses.
- 3.4 Shelf life – The maximum period of time between the cure date and the date the elastomeric product is first removed or unpackaged for installation or fabrication into a component part of a subassembly, assembly, or system.
Recommended Storage Conditions:
- Store in a cool, dry place with temperature below 75° F
- Avoid contact with solvents or other fluids
- Keep away from direct heat or open flames
- Do not store in direct sunlight
- Keep away from oxidizing agents, peroxides, chlorine gas etc.
- Keep products wrapped or sealed to minimize the absorption of moisture
- Store in a relaxed condition free from tension, compression or other deformation