LOCTITE Head Bolt and Water Jacket Sealant is a single-component anaerobic hybrid that lubricates fasteners during assembly, as well as seals the gaps between the threads. It eliminates corrosion, which can cause difficulties if future disassembly is required. The Head Bolt and Water Jacket Sealant locks the bolts in order to prevent premature loosening and, should the assembly need to be taken apart in the future, acts as a lubricant to ease the removal of fasteners that are through holes in water jackets.

LOCTITE automotive aftermarket products are not just OEM-specified, they are also designed by auto manufacturers and lab tested. Engines of nearly every professional race car are assembled and maintained with LOCTITE brand adhesives, sealants, gasket makers, and coatings. Whether gasoline or diesel, from bolts and gaskets to cooling lines and core plugs, Henkel products are used to seal, secure, and repair vehicle components.