Loctite Ultra Blue RTV Silicone Gasket Maker delivers a flexible, oil-resistant seal that forms a reliable gasket in place on virtually any flange surface. Ideal for use on valve covers, timing covers, water pumps, and other automotive and industrial assemblies where a durable, leak-proof seal is required.
This 300 mL cartridge-format formula cures at room temperature upon exposure to moisture, producing a tough silicone gasket that resists temperatures, vibration, and common shop fluids — making it a go-to solution for maintenance, repair, and overhaul applications.