General-purpose liquid gaskets. Excellent engine-oil resistance. Excellent gear-oil resistance. Corrodes copper and copper-based alloys. Can not be used for copper and copper-based alloys in tightly-sealed state. Weight: 250 gram. RTV Silicone. High Temp (250c). Slower Cure Tack free 17 to 25 mins Suitable for : Gearboxes with multiple covers. Excellent for race teams that strip engines regularly.