Mapei Planiseal Max
For self-leveling underlayments, Planiseal Max is a two-coat, high-solids, polymer-based, moisture-control membrane and textured primer. With moisture vapor emission rates (MVERs) up to 25 lbs. (11.3 kg) per ASTM F1869, relative humidity (RH) up to 100% per ASTM F2170, and alkalinity protection up to pH of 14, Planiseal Max shields flooring installations against subfloor moisture and pH in concrete slabs. A secondary primer is no longer required for self-leveling applications thanks to Planiseal Max.
Features
- Fast drying times
- Colored burgundy to help ensure proper coverage
- Water-based formulation for ease of use and cleanup
Suitable Substrates
- Absorbent new/existing concrete on or above grade and at least 7 days old. A concrete substrate must have some open porosity, with an International Concrete Repair Institute (ICRI) concrete surface profile (CSP) of at least #1
- Cement-based, self-leveling underlayments and patching compounds
- Exterior-grade plywood, Group 1, CC type; other approved wood underlayments (per the flooring manufacturer’s recommendations) as a sealer/primer only
