Loctite 592 Thread Sealant Slow Cure

Loctite 592 Thread Sealant (full name: Loctite 592 Thread Sealant) is a specialized, one-component, PTFE-based thread sealant used for metal thread connections in piping systems.

🔹 Main information

Form: white liquid glue, high viscosity.

Mechanism: slow curing (anaerobic – only hardens when in metal gaps and without oxygen).

Main ingredients: contains PTFE (Teflon) to lubricate and increase tightness.

Working pressure: withstands up to 10,000 psi (≈ 690 bar) for gas and liquid.

Working temperature: from -55 °C to +204 °C.

🔹 Application

Seal metal threaded joints in:

Pneumatic, hydraulic systems.

Water, oil, solvent, gas pipelines.

HVAC system, industrial piping.

Replaces Teflon tape in high-pressure threaded joints.

🔹 Instructions for use

Thread preparation

Clean dust, oil, grease, rust.

Can use Loctite SF 7070 cleaning solution or mild solvent.

Construction

Apply glue evenly to the male threads.

Screw the coupling into the female thread as usual.

Adjust the position within a few minutes before the glue begins to set.

Curing

The glue begins to dry in 20–30 minutes.

Fully cured after 24 hours (depending on thread size and material).

🔹 Advantages

Withstands much higher pressure than Teflon tape.

Does not “loosen the thread” after a long time, good vibration resistance.

Lubrication ability makes disassembly easier than hard thread glue.

Suitable for gas, water, oil systems.

🔹 Disadvantages

Slow curing time (not suitable for immediate use).

Only for metal threads, not suitable for plastic or soft materials.