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The OATEY 23551 is a pipe thread sealant sold under the Megaloc product line, supplied in a 0.5-pint container. Pipe thread sealants are applied to threaded fittings and connections to prevent leaks by filling the micro-gaps between male and female threads. The 23551 is a brush-top compound used by licensed plumbers, pipefitters, and HVAC technicians on residential and light commercial systems. It weighs 0.7 pounds packaged and is designed for fast, clean application directly from the container.
Pipe thread sealants like the OATEY 23551 Megaloc are used on threaded pipe joints throughout residential and light commercial installations. Typical applications include water supply lines, gas lines, and hydronic system connections where a reliable thread seal is required. The 0.5-pint container size is well suited for service techs and contractors who need a portable, job-site-ready solution without carrying bulk quantities.
Designed as an OEM-style replacement thread sealant compound for use on standard threaded pipe connections in plumbing and mechanical systems.
Pipe thread sealants are typically applied by licensed plumbers or pipefitters in accordance with applicable IPC and IFGC requirements. Shut off the water or gas supply and depressurize the line before disassembling any threaded joint. Apply the sealant evenly to the male threads before making up the joint. Allow adequate cure time before returning the system to service pressure.
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