Natural Rubber
Natural rubber grommets have high tensile and tear strength, making them strong and resistant to cracking. They also offer good insulation properties.
Buna-N (Nitrile Rubber)
Buna-N is the best material for oil resistance among rubber materials. For rubber grommets that need to contact oil, NBR is ideal. NBR also has relatively low volume resistance and antistatic properties.
Neoprene
Neoprene rubber grommets have excellent heat resistance, ozone aging resistance, and weather resistance, making them suitable for outdoor use. Due to their very good flame retardant properties, neoprene is also recommended for high flame retardancy products.
FKM (Fluoroelastomer)
FKM has high chemical stability and offers the best medium resistance among elastomers, making it suitable for strong acid and strong alkali environments. Additionally, FKM has excellent high-temperature resistance, capable of working at 250℃ for extended periods.
Silicone
Silicone is ideal for brightly colored grommets. It is safe, environmentally friendly, and suitable for direct food and skin contact. With anticoagulant properties, silicone is particularly suitable for medical products.