We use best quality non-reactive and highly stable silicone rubber for making your bulb rubber seal & gasket which offers excellent resistance in extreme weather and temperature range from -65 °F to 450 °F. Additionally, it provides great resistant to UV, Ozone and abrasion as well. Using special grade silicone rubber material, we can also make Food Grade Bulb Seal or High Temperature Bulb Silicone Gasket or Class VI Grade Extruded Gasket. You will also get flexibility to choose different hardness of silicone rubber as well as color.