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The OATEY COMPANY 15420 is an oil-based thread sealant sold in a 1/2-pint container, formulated for sealing threaded joints on metal pipe systems. It lubricates threads during assembly while simultaneously forming a tight, leak-proof seal. Licensed plumbers and pipefitters apply this product to male threads before joint make-up on systems carrying water, natural gas, air, steam, ammonia, brine, diluted acids, and alkaloids. The oil-based formula provides a long shelf life and straightforward brush application, making it a reliable choice for both new installations and maintenance work across residential and commercial piping systems.
This thread sealant is suited for use on metal pipe and fitting threads in plumbing, gas distribution, HVAC, and industrial process piping. It is appropriate for systems operating with a wide range of media including potable water lines, gas supply piping, compressed air headers, and low-pressure steam service. Its ease of application makes it a common shop and field supply for plumbing and mechanical contractors handling threaded metal connections.
Designed as an OEM-style thread sealant for metal pipe threaded connections in plumbing, gas, HVAC, and mechanical piping applications.
Thread sealant on gas piping must be applied by a licensed plumber or pipefitter in accordance with applicable local codes and IFGC requirements. Apply sealant to the male threads only, leaving the first thread bare to prevent contamination of the pipe interior. Pressure-test all joints after assembly before returning the system to service. Do not apply to plastic fittings or non-compatible materials unless verified suitable for this product.
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