Skip to main content
Home Back to top
Utility Nav
About Careers Contact Us

Cements, Primers & Cleaners Thread Sealants Copper Installation Putty, Caulks & Water Barriers Oils, Lubricants & Hand Cleaners Drain & Waste System Cleaners Heating Chemicals & Antifreeze Gaskets & Bolts Drains & Closet Flanges Shower Systems Supply Boxes 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 Toilet Repair
View All

Cherne Dearborn Harvey Hercules Keeney Masters Oatey QuickDrain
View All

Commercial Plumbing Residential Plumbing Specialty Construction Waterworks
View All

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

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

Masters® A-Plus®

Masters

Masters® A-Plus® is a general purpose anaerobic pipe thread sealant. It has superior sealing and locking properties compared to tapes and non-hardening pastes.

UPC: 067001001672
Part #: MAP250

Key Features & Benefits

  • Excellent performance on stainless steel pipe and is commonly used where vibrations are prevalent, making it suitable for production line applications.
  • Seals to moderate pressure almost instantly and to 250 psi in approximately 24 hours.
  • Once curing is complete, it can withstand temperatures from -65 F to 400 F (-54 C to 204 C).
  • Lubricates during assembly and hardens in the threads.

Specifications

Brand: Masters
Maximum Application Temperature °F: 122°F
Maximum Application Temperature °C: 50°C
Material Compatibility: Aluminum
Material Compatibility: Black Iron
Material Compatibility: Brass
Material Compatibility: Copper
Material Compatibility: Stainless Steel
Set Speed: 24 Hour
Product Type: Hard Set
Color: White
Set Type: Hard Set
California VOC Compliant: Yes

More Specifications

Technical Resources (5)

  • SDS Canada English
  • SDS Canada French
  • Product Instructions
  • Sell Sheet
  • Sell Sheet

More Downloads

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

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
About Us Oatey University Careers News & Press Idea Portal
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 Oatey University Careers News & Press Idea Portal
Connect With Us

Contact Us

Patents | Trademarks | Supply Chain Information | Privacy and Terms of Use
© 2022 Oatey. 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