Silicone Spray Lubricates and Protects Nonmetal Surfaces AMSOIL Silicone Spray protects with a dry lubricating film ideal for surfaces that may be damaged by conventional lubricants such as grease or oil. AMSOIL Silicone Spray also helps prevent the cracking and drying of rubber and locks out moisture. It will not attract dust or dirt, keeping applications contaminant-free.