... PAHS,NSF,FDA,WRAS, etc. 2. Good quality low price. Description of High Performance Liquid Silicone Rubber :1. Materials: SI, ... VITON, FKM, FPM, etc.2. Characteristics: high and low temperature resistant, ozone resistant, aging resistant, weather resistant, good insulation property, anti-toxic, good air ... 5 shore A, and can be ±3 shore A for special products.4. Size tolerance: exactly upon your request ...