MasterHeat Mix In-Floor Heating Mortar

MWI MasterHeat Mix is specifically engineered for covering radiant heat cables and RPM mats. For use with MasterHeat in-floor heating products.

Brand: MasterHeat

Availability: Sold in Store (293 available in store). (More Info)

Shipping: Standard (More Info)


Our MasterHeat Mix is specifically engineered for covering radiant heat cables and RPM mats. MasterHeat Mix is a fast setting, high strength dry polymer modified mortar that is designed to be mixed with water; no other liquid additive is needed. This product is a cement based multipurpose floor repair and leveling compound. MasterHeat Mix can be installed from 3" thick (with added aggregate) to a 1/16" feather edge.

Suitable for both interior and exterior applications, MasterHeat Mix has excellent adhesion to properly prepared surfaces and is ready for traffic just 1 to 2 hours after installation, depending upon temperature and thickness. This product contains no gypsum.

Master Heat Mix Packaging and Coverage:

  • Sold in 50lb bags (gray powder)
  • When used directly over heat cable, one bag covers 25 s/f @ 1/4"
  • Over RPM-330 and RPM-V1, one bag covers 23.5 s/f @ 5/16"
  • Over RPM-500 one bag covers 14.5 s/f @1/2"

Download Product Data Sheet Download Safety Data Sheet

More Information
Net Weight (lbs.)50.00
Manufacturer Part NumberMASTERHEAT MIX
Size (L x W x H)21" x 12.5" x 4.5"
Write Your Own Review
You're reviewing: MasterHeat Mix In-Floor Heating Mortar
Question:I have 3 bags of this but I'm no longer doing the heat coils. Can I use it just like thin-set or as a regular mortar under a shower pan? THANKS

Answer: It can not be used as a thin-set, but it can be used as mortar to build shower pan. But just a reminder, it sets-up very fast.

Did you find what you were looking for?