Loctite 572 belongs to the anaerobic thread sealant group, specialized for large metal pipe thread joints – especially in industrial pipelines. This product is “more resistant to force – pressure” than 542/545 (small thread) and different from 565/567 in heat resistance and density.
🔹 Information about Loctite 572:
Form: Liquid glue, milky white, high viscosity (slightly thick).
Outstanding features:
Specialized for large metal pipe threads (water, oil, gas pipes).
High viscosity → good adhesion, no flow, suitable for coarse threads.
Heat resistance from -55°C to +150°C.
Withstands high pressure, prevents leakage of gas, oil, water, solvents.
Initial drying time: ~20 minutes on steel (longer on stainless steel/aluminum).
Allows detailed alignment after application (working time longer than 565/567).
Does not cause plastic or rubber cracks when in contact.
🔹 Practical applications:
Seal large metal pipes in water supply and drainage systems, compressed air, oil, fuel.
Industrial gas pipes, HVAC, oil and gas systems.
Replace PTFE tape when a tighter and more durable seal is required.
Widely used in construction, oil and gas, industrial plants.
👉 Summary:
Loctite 572 = the number 1 choice for large metal pipe threads, coarse threads, when a higher strength than PTFE tape is required.
Unlike 565 (general-purpose) and 567 (specialized in stainless steel/high temperature), 572 focuses on large threaded industrial pipes – coarse threads.
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