Home Back to top
Utility Nav
About Careers Contact Us Where to Buy

Solvent Cements, Primers & Cleaners Thread Sealants Copper Installation Putty, Caulks & Water Barriers Oils, Lubricants & Cleaners Drain & Waste System Cleaners Heating Chemicals & Antifreeze Gaskets & Bolts Drains & Toilet Flanges Shower Systems Supply Flashings Air Admittance Valves (AAV) Pipe Support Brass, Plastic & Commercial Tubular/Grab Bars Bath Waste & Overflow Baskets & Sink Strainers Pneumatic Test Balls Mechanical Test Plugs Testing Equipment / Tools & Accessories Pans & Stands Commercial Drains Rough-In Products
View All

Cherne Dearborn Harvey Hercules Keeney Oatey QuickDrain Plumb Pak
View All

Commercial Plumbing Residential Plumbing Specialty Construction Waterworks
View All

Project Guides Videos Data Sheets (SDS) & Product Literature Product Catalogs FAQs Blog Case Studies BIM Revit 3 Part CSI, Master Spec ARCAT Blue Volt Training
View All

Oatey Brand Ambassadors Oatey University Podcast - The Fix Events & Experiences Supplier Diversity Contact Us Subscribe
View All
About Careers Contact Us Where to Buy Select Region
< Thread Sealant Paste

Hercules® Brush-on Block™

Hercules® Brush-on Block™ Thread Sealant is a smooth, high-performance blue pipe joint and gasket sealing compound. This lead-free, vibration-resistant thread sealant forms a tough, flexible seal on various metals and plastics. Behold the power of Hercules®, products built to last and trusted by plumbers to withstand even the toughest conditions.




Available in 4 variations

Key Features & Benefits

  • Forms a tough, flexible and leak-resistant seal
  • For use on joints, threads, valves, flanges, gaskets, pumps and tanks
  • Compatible with metals including aluminum, black iron, brass, copper, stainless steel, galvanized steel and plastics, including PVC and CPVC
  • Quickly provides leak-proof resistance to high-pressure, temperature, expansion, contraction and extreme vibration
  • Non-hardening, non-separating and non-toxic
  • Withstands up to 12,000 PSI on liquids and up to 2,600 PSI on gases
  • Performs over a range of -90° to 450°F on steel pipe
  • Can be used in automotive or industrial applications where vibrations occur

Specifications

Color: Blue
Brand: Hercules
Maximum Application Temperature °F: 110°F
Maximum Application Temperature °C: 43°C
Product Type: Hard Set
Set Type: Hard Set
Material Compatibility: ABS
Material Compatibility: Aluminum
Material Compatibility: Brass
Material Compatibility: CPVC
Material Compatibility: Copper
Material Compatibility: Plastics
Material Compatibility: PVC
Material Compatibility: Stainless Steel
California VOC Compliant: No

More Specifications

Technical Resources (5)

  • Submittal
  • SDS
  • SDS Spanish
  • LEED Green Sheet
  • Product Instructions

More Downloads

Available in 4 variations

Frequently Asked Questions

What pipe joint compounds should I use in an approved piping system filled with natural gas?

The following Oatey pipe joint compound products are approved for use in this application: Oatey Great Blue, Hercules Block, Hercules Grrip, Hercules Megaloc, Hercules Pipe Joint Compound, Hercules Pro Dope or Hercules Real-Tuff are all safe for this application. 

What is the curing time for pipe joint compound?

Under normal pressures the pipe joint compounds does not need a curing time. If the pressure in the lines is 125psi or higher, the recommended cure time is 4 hours before initiating pressure. Call Oatey Customer Service when in doubt.

Can pipe joint compound and thread sealant tape be used on the same joint?

Yes. Once the male threads are wrapped properly you can apply a coating of pipe joint compound over the thread sealant tape before assembling the joint. Remember that you only apply pipe joint compound to the male threads.  

Related Resources

Blog

How to Select and Apply a Pipe Thread Sealant

Read More
Videos

Hercules Megaloc Thread Sealant

View
View More
the choice of plumbing professionals
Oatey
Resources
FAQs Videos Blog Case Studies Plumbing Terms Data Sheets (SDS) & Product Literature BIM Revit CSI 3 Part Spec Oatey Limited Warranty ARCAT Catalogs Blue Volt Training
Company Info
Supplier Diversity About Us Careers Idea Portal Oatey Swag
Resources
FAQs Videos Blog Case Studies Plumbing Terms Blue Volt Training
Technical Resources
Data Sheets (SDS) & Product Literature BIM Revit CSI 3 Part Spec Oatey Limited Warranty ARCAT Catalogs
Company Info
About Us Careers Supplier Diversity News & Press Idea Portal Oatey Swag
Connect With Us

Contact Us

Patents | Trademarks | Supply Chain Information | Privacy and Terms of Use
© Oatey Co. All rights reserved.

It appears that you're using an unsupported browser.

If you are currently using Internet Explorer we recommend you switch to Edge or another supported browser to enjoy the best experience Oatey.com has to offer.

Learn More

OK