Corrosion Block is a high performance corrosion inhibiting lubricant that protects all metals, mechanical parts, external Air Conditioning systems and common electrical components found on your Boat, in your Home, or work-shop. Provides excellent corrosion protection from salty Marine, Coastal or Industrial environments. Corrosion Block is the best penetrate/lubricant for home, shop and garage uses. Contains no wax, silicon, Teflon or graphite to gum up mechanisms. Corrosion Block is easy to apply, clean, long lasting, non-toxic, non-flammable and non-hazardous.Key Features Kills corrosion on contact Protects, lubricates, and penetrates Multipurpose, dielectric/non conductive Synthetic additives in corrosion block completely penetrate corrosion cells, replacing the moisture which is then allowed to evaporate