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Leak-proof performance and versatile application define Loctite 577, Thread Sealant, 50 ml, designed for sealing metal pipe threads and fittings in industrial and hydraulic systems. Its medium-strength, anaerobic formulation cures quickly on active and passive metals, providing a durable, pressure-resistant seal that prevents loosening and leakage caused by vibration or thermal cycling. The thixotropic (non-drip) consistency ensures easy application and prevents migration, even on vertical or overhead surfaces. Resistant to fuels, oils, and industrial fluids, it maintains integrity under harsh conditions. Ideal for marine hydraulics, mechanical repair, and metric fabrication, Loctite 577 delivers reliable, long-lasting sealing performance.
