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The MIDLAND INDUSTRIES 983100 is a soft-set threaded sealant designed to seal pipe threads against leaks in pneumatic and fluid systems. The compound applies with an included brush, allowing even coverage on male and female threads before assembly. It remains semi-flexible after curing, which allows for disassembly and thread reuse without damaging the fitting. Packaged in a 1/4-pint can, this sealant is suited for use on compressed air, water, and gas pipe connections where a non-hardening, repositionable seal is required. The container weighs approximately 0.485 pounds, making it easy to carry on service calls.
This sealant is commonly used in residential and light commercial installations involving threaded pipe joints in pneumatic systems, HVAC air lines, plumbing, and general mechanical applications. The brush-top applicator makes it practical for use in tight spaces during fitting assembly. It is appropriate for use by HVAC technicians, plumbers, and pipefitters working with NPT-threaded connections in both new installations and repair work.
Designed as an OEM-style replacement sealant for use on standard NPT-threaded pipe fittings in pneumatic, plumbing, and HVAC piping systems.
Apply to clean, dry, grease-free threads before assembly. Shut off and depressurize the system fully before disassembling or assembling any threaded connections. Installation should follow applicable codes including IFGC or IPC requirements depending on the service type. A licensed tradesperson should perform any work on gas or pressurized systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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