Victor Reinz Reinzosil is a permanently elastic, universal silicone sealing compound that is resistant to extreme temperatures, mineral oils, numerous synthetic oils, lubricants, gasoline, diesel/biodiesel fuels, greases, hot and cold water, detergents, sunlight, ozone, and salt water. Its durability, flexibility, and versatility make it a favorite among import car repair specialists. Reinzosil is the RTV sealant of choice in Europe; now, Victor Reinz brings this exceptional, in-demand product to the North American aftermarket.