polysulfide
| Polysulfide | |
| Common Name | Polysulfide |
| ASTM D-2000 Classification | BK |
| Military (MIL STD 417) | SA |
| Chemical Definition | Polysulfide |
| General Characteristics | |
| Durometer Range (Shore A) | 40 - 80 |
| Tensile Range (P.S.I.) | 800 - 1200 |
| Elongation (Max. %) | 300 |
| Compression Set | Poor |
| Resilience - Rebound | Fair |
| Abrasion Resistance | Poor |
| Tear Resistance | Poor |
| Solvent Resistance | Excellent |
| Oil Resistance | Excellent |
| Low Temperature Usage (F°) | -65° |
| High Temperature Usage (F°) | to 160° |
| Aging Weather - Sunlight | Good |
| Adhesion to Metal | Poor |
| Comment | |
Polysulfide is generally resistant to most ozone, oils, aromatic hydrocarbons, esters, ketones and thinners. Polysulfide is not recommended for service where it is exposed to mercaptans, chlorinated hydrocarbons, nitro hydrocarbons, esters, amines and heterocyclics |
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