Silicone Rubber (Q, MQ, VMQ, PVMQ)
Physically, silicones are based on silicon, an element derived from quartz. To create this class of synthetic elastomers, pendant organic groups such as methyl, phenyl and vinyl are attached to silicon atoms. The different additions of side chains can achieve significant variations in properties. Silicones have excellent heat, ozone & corona resistance, very high dielectric stability, and resistance to many oils, chemicals, and solvents. Silicones possess the best flexible properties at low temperatures, but also have weaknesses like low tensile strength, poor tear strength and wear resistance.
Silicone service temperatures range from -60° C to 225° C. Some special types can be used in extreme temperature up to 300° C and down to -100° C.
25 to 90 Shore A are available.
Black, brown, green, white, rust, yellow, blue, red, orange, transparent and gray are available, or any assigned color from customers.
Silicone rubber performs well under environmental and temperature extremes. It is usually applied in automotive and aerospace industries where flexibility and longevity are important. It also has outstanding electrical insulating properties where applying strict performance standards are critical. It is also a suitable material for parts that need FDA approval for food handling equipment and appliances.