Novalok anaerobics are uniquely different from other types of metal adhesives or sealants. Novalok needs no catalysts and contains no solvents, instead, it cures in the absence of air. Novalok anaerobic adhesives remain liquid on exposed metal surfaces, so you don't have to assemble parts immediately. However, when placed between snug fitting metal surfaces which exclude air, it cures to full strength producing a tough, inert plastic that prevents corrosion, locks, seals and retains. Novalok is formulated so it holds parts securely, yet allows them to be disassembled with conventional tools when necessary. The 3 Novalok types SF, M and C differ from each other by their technical specifications such as viscosity, fast curing and final strength. Novalok provides the right filling layer for different gaps.