Chemraz ® SD625 is a black, synthetic, high-purity rubber with temperature and chemical compatibility similar to PTFE. Chemraz ® SD625 parts have high service temperatures (up to 500°F/260°C), near-universal chemical compatibility, and extensive compliance coverage. Chemraz ® SD625 is our best-performing seal material for pharma, biotech, cosmetic, and food processing applications.

Chemraz ® SD625 seals have exceptional service lifetimes in steam-in-place (SIP) applications relative to FKM, silicone, and EPDM seals. Chemraz ® SD625 o-rings and gaskets typically maintain sealing after thousands of steam sterilization cycles, orders of magnitude longer than other materials.