When seeking a versatile thread sealant capable of withstanding high temperatures and contaminants, and effective on both active and inactive metals, opt for LOCTITE® 577. Specifically engineered for locking and sealing threaded metal pipes and fittings, this product delivers an immediate, low-pressure seal without creeping, shrinking, or shredding. Ideal for stainless steel applications without surface activation, it provides gap-filling capabilities up to 0.01 inches and cures reliably even in the presence of minor surface contaminants like cutting fluids, lubricants, anti-corrosion agents, or cleaners containing surfactants and corrosion inhibitors.