Excluder seals and scraper seals are used to prevent the outside environment from dirt, water, and particle debris from entering the sealing system. â?? EXCLUDER SEAL FEATURES Prevents outside contamination from entering the sealing system Extreme Applications such as mud and ice Extremely fine Arizona dust Seal Materials: BR40, BR40M5, BR55M5, GL5M5, GL15M5. Temperature Range: -50�°C + 200�°C Pressure: up to 800 bar (80Mpa) O Ring material: Nitrile Rubber, Viton Rubber. Size Range: We manufacture ROTARY Seals for the range of Rod diameter - 20mm to 600mm.