Where non-age sensitive elastomers mentioned in 15 year and unlimited categories are involved, considerable storage life without detectable damage is common even under adverse conditions. For materials mentioned in the 5 year category, which are subject to deterioration, the following conditions are suggested for maximum life:

1. Ambient temperature not exceeding 120°F (49°C)
2. Exclusion of air (oxygen)
3. Exclusion of contamination
4. Exclusion of light (particularly sunlight)
5. Exclusion of ozone generating electrical devices
6. Exclusion of radiation

Generally, polyethylene bags stored in larger cardboard containers or polyethlylene lined craft paper bags insure optimal storage life. However, in normal warehousing conditions, life of even the relatively age-sensitive elastomers is considerable.