Anaerobic threadlockers are an excellent option for sealing threaded parts, and assemblies. The thermoset plastic formed-in-place seal, is bonded to the substrates and cross-linked throughout, providing a robust sealant capable of withstanding pressure, vibration, and chemical attack. Because these materials are 100%reactive, there is little shrinkage ensuring that the inner space is filled, and so are available leak paths. By filling the inner space a plastic shim firmly bonded to the available surfaces, anaerobic adhesives and sealant protect the substrate surfaces from corrosion from outside contaminates, as well as galvanic corrosion.
The most commonly used threadlocker is blue removable. Adhesive R&D Military Grade Blue meets the stringent original Mil-Spec and also ASTM D5363 AN0321.