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Blue brush-top can of Megaloc pipe thread sealant, 19.2 fl oz

Hercules

Hercules 15808 Megaloc Pipe Thread Sealant 19.2 fl oz Blue

SKU CH-VXQC-H4DW3

Non-hardening blue pipe thread sealant in a 19.2 fl oz brush-top can handles air, fuel, water and steam from -50 °F to 400 °F at up to 12,000 psi liquid pressure

  • Non-hardening cure allows easy disassembly later
  • Withstands -50 °F to 400 °F temperature range
  • Seals gases up to 2 600 psi and liquids to 12 000 psi
  • Compatible with air, fuels, water, steam and more
  • 2 fl oz brush-top can for clean application

Pipe Thread Sealant for Multiple Fluids

Hercules 15808 Megaloc is a non-hardening pipe thread sealant supplied in a 19.2 fl oz brush-top can. It is designed for professional plumbers and maintenance technicians who need a reliable joint compound for new installations or repairs. The blue colour helps identify sealed connections during inspection. It suits systems carrying air, water, fuels and gases.

Temperature and Pressure Operating Range

The sealant remains effective from -50 degrees F up to 400 degrees F, giving wide headroom for hot steam lines and cold outdoor piping. It withstands gas pressures up to 2,600 psi and liquid pressures up to 12,000 psi, covering most residential and light industrial services. Beyond those limits the compound is not rated and a different sealing method should be chosen.

Brush-Top Can and Non-Hardening Formula

The brush-top container allows direct application to threads without extra tools, speeding up work on site. Because the formula stays non-hardening, joints can be disassembled and reassembled later without damaging threads or needing heavy cleaning. The 16 oz fill provides enough material for many connections while the can seals tightly between uses.

Highlights

  • Non-hardening cure allows easy disassembly later
  • Withstands -50 °F to 400 °F temperature range
  • Seals gases up to 2 600 psi and liquids to 12 000 psi
  • Compatible with air, fuels, water, steam and more
  • 2 fl oz brush-top can for clean application

Specifications

BrandHERCULES

Questions about this item

Will the Megaloc 15808 sealant work on older galvanised pipe threads I plan to keep?

Yes, it is rated for water, air, natural gas, propane and petroleum fluids at up to 12,000 psi for liquids and 2,600 psi for gases, with a temperature range of -50 °F to 400 °F.

How can I verify the Megaloc 15808 is sealing correctly once applied?

Pressurise the system to its working pressure and check every joint with leak-detection fluid or a gas sniffer; the non-hardening blue paste stays visible so you can see coverage.

Does the 19.2 fl oz brush-top can include a brush or do I need a separate applicator?

The container is a brush-top can, so the applicator brush is built into the lid; no separate brush is required.

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