Loctite 2068748 Thread Sealant Paste 250 Ml Medium Strength

Product Description

The LOCTITE 2068748 is a medium-strength, yellow dimethacrylate ester thread sealant paste used to seal and lock threaded pipe connections. Supplied in a 250 mL tube, it delivers a viscosity range of 160,000 to 300,000 cP, providing a controlled, non-drip application on male threads. The paste resists pressures up to a breaking strength of 250 pounds and handles service temperatures from -65 degrees F to 300 degrees F. Licensed plumbers, pipefitters, and HVAC technicians apply this product to metal and plastic threaded fittings where a medium-hold, serviceable seal is required without permanent locking.

This thread sealant is suited for residential and light commercial plumbing, HVAC hydronic systems, and industrial piping where threaded connections must be sealed against gas and liquid leakage. The paste form allows hand or brush application directly to male pipe threads before assembly. A working time of 24 hours gives installers adequate time to adjust fittings after make-up. The yellow color provides visual confirmation of coverage on the thread form. It is commonly used on NPT fittings, valve bodies, and union connections in low- to medium-pressure systems.

Key Features

• Medium-strength dimethacrylate ester formula allows disassembly with standard hand tools
• Viscosity of 160,000 to 300,000 cP ensures the paste stays on threads without running
• Service temperature range from -65 degrees F to 300 degrees F suits most HVAC and plumbing applications
• Breaking strength rated at 250 pounds provides reliable sealing under normal system pressures
• 24-hour working time allows fitting adjustments before full cure
• 250 mL tube format supports repeated use across multiple connections per container

Compatibility

Designed as an OEM-style thread sealant for use on metal and plastic threaded pipe fittings in plumbing, HVAC, and general industrial piping applications. Part of the Loctite 577 series.

Installation Notes

Thread sealant application is performed by licensed plumbers, pipefitters, and HVAC technicians in accordance with applicable plumbing and mechanical codes such as the IPC and IFGC. Ensure threads are clean and free of oil, debris, and old sealant before applying the paste. Apply the product to the male thread only, leaving the first one or two threads bare to prevent contamination of the system. Depressurize and drain the line before disassembly or rework of any previously sealed joint.