Loctite LOC59243 Pst Thread Sealant Slow Cure 1 Liter

Product Description

The LOCTITE LOC59243 is a slow-cure liquid PST thread sealant designed to seal and secure metal pipes and fittings in piping systems. It fills the voids between threaded metal parts and cures to prevent leakage under both low and high pressure conditions. Upon application, the sealant provides an immediate seal suitable for low-pressure testing before full cure is reached. Once fully cured, it seals to the burst strength of most piping systems. The product ships in a 1 liter bottle and weighs 2.985 pounds. It is commonly applied by licensed plumbers, HVAC technicians, and pipefitters working on threaded metal pipe assemblies.

This thread sealant is suited for use in residential and commercial piping installations where threaded metal connections require a reliable, pressure-rated seal. Typical applications include water supply lines, gas distribution piping, compressed air systems, and hydraulic lines. The slow-cure formulation gives technicians working time to align and adjust fittings before the sealant sets, making it well suited for complex assemblies or installations requiring precise positioning.

Key Features

• Slow-cure formula provides extended working time for fitting alignment and adjustment
• Seals instantly for low-pressure testing upon initial application
• Rated for both low and high pressure applications
• Cures to the burst strength of most piping systems when fully set
• Liquid formulation fills thread voids completely for a leak-free seal
• Available in a 1 liter bottle for high-volume or repeat-use applications

Compatibility

Designed as a thread sealant for use on threaded metal pipes and fittings across a range of piping system types and pressure ratings.

Installation Notes

Thread sealants of this type are typically applied by licensed plumbers or pipefitters following applicable plumbing and mechanical codes such as the IPC or IFGC. Ensure the system is fully depressurized and drained before disassembling or re-threading any connections. Clean threads thoroughly before applying the sealant and allow adequate cure time before bringing the system back to operating pressure. Follow the manufacturer safety data sheet for handling, ventilation, and disposal guidance.

Technical Specifications

• Cure Speed: Slow Cure
• Container Size: 1 Liter
• Weight: 2.985 pounds
• UPC: 079340592437
• Unit of Measure: Each
• Minimum Order Quantity: 1

Standard Information

• Brand: LOCTITE
• Manufacturer Part Number: LOC59243