Hercules
Hercules Thread Sealant 16 oz Gray 15427
Non-hardening gray pipe thread sealant in a 16 oz brush-top can rated to 350 °F, 200 psi gas and 250 psi liquid
- Non-hardening formula allows easy disassembly
- Gray color identifies sealant on threaded joints
- Works from 0 to 350 degrees Fahrenheit
- Rated 200 psi gas and 250 psi liquid pressure
- Compatible with steel, copper, brass and aluminum
Thread sealant for piping systems
Hercules Thread Sealant 15427 is a non-hardening pipe dope supplied in a 16 oz brush-top can. It is designed for professionals and DIY users who need reliable sealing on threaded connections carrying air, natural gas, steam or water across a wide temperature range.
Pressure and temperature boundaries
The sealant handles gases up to 200 psi and liquids up to 250 psi. It remains effective from 0 degrees F to 350 degrees F, so it suits both cold-water lines and high-temperature steam service without hardening or cracking over time.
Broad material compatibility
The gray formula works on aluminum, black iron, brass, copper, galvanized steel and stainless steel threads. The brush-top container allows direct application to fittings, reducing mess and ensuring even coverage during assembly or maintenance tasks.
Highlights
- Non-hardening formula allows easy disassembly
- Gray color identifies sealant on threaded joints
- Works from 0 to 350 degrees Fahrenheit
- Rated 200 psi gas and 250 psi liquid pressure
- Compatible with steel, copper, brass and aluminum
Specifications
| Brand | HERCULES |
|---|
Questions about this item
Should I pick the 16 oz brush-top can or a different size for pipe threads?
The 16 oz brush-top can supplies enough Pro Dope non-hardening sealant for many threaded joints on aluminum, brass, copper, galvanized or stainless steel pipe.
What does the 350 °F maximum temperature mean when the sealant is on a live steam line?
At up to 350 °F the gray compound stays pliable and keeps sealing steam threads without hardening or cracking.
How do the 200 psi gas and 250 psi liquid ratings limit the fittings I can seal?
The sealant is rated for 200 psi on air or natural gas lines and 250 psi on water or steam lines, so size your fittings within those pressures.
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