Topstik Studlock and Seal – 10ml. Red coloured general purpose adhesive for permanent fixture. Studlock locks bolts and studs up to 25mm in diameter, sealing against leakage and corrosion. It is chemical resistant, resisting fuels, lubricants as well as most industrial liquids and gases. Eliminates double nutting and or welding of critical assemblies. Using this product permits reduced casting thickness as well as eliminating cracked castings due to interference fit stresses. The product allows usage on fine to medium threads on parts that will not require periodic disassembly. Hand apply product from the bottle. For our full range of Topstik products, click here.