MAPEI 50-lb Gray Uncoupling Membrane Mortar

Dry-set thin-set/medium-bed mortar designed for installing ceramic and select natural stone over uncoupling membranes on floors and walls. Suitable for interior/exterior use and can be mixed with MAPEI Polymer Additive for enhanced performance and broader substrate compatibility.

Key Features:

• Built for Uncoupling Membranes: Formulated specifically to bond tile over uncoupling systems for reliable installations
• Large-and-Heavy-Tile Capable: Approved for tiles larger than 15 in. with bond coats up to 1/2 in. embedded thickness
• Versatile Mixing: Use water, or substitute MAPEI Polymer Additive to boost strength and expand substrate options
• Interior/Exterior Use: Performance for floors and walls in residential and light commercial settings
• Contractor-Friendly: 50-lb bag of gray powder mixes smoothly for consistent coverage

Please check the Product Data Sheet Here

Specifications Table:

Frequently Asked Questions (FAQ):

Q: Can this mortar be used with large-format tile?
A: Yes. It is approved for tiles larger than 15 inches with bond coats up to 1/2 inch embedded thickness.

Q: Is it only for floors?
A: No. It is formulated for floors and walls, interior and exterior, when used with appropriate substrates.

Q: Do I need an additive?
A: You can mix with water, but using MAPEI Polymer Additive enhances performance and allows use over a wider range of substrates.

Q: What color is the mortar?
A: Gray.

Q: What is the bag size?
A: 50 lb (22.7 kg).

Architectural Bond With Effortless Poise

This mortar brings a tailored precision to tilework, creating a seamless canvas that elevates stone and ceramic to gallery-level refinement. Its compatibility with uncoupling membranes ensures crisp lines and confident scale, especially with large-format pieces. Pair it with matte porcelain slabs for a calm, monolithic sweep across floors and walls. It’s the quiet luxury beneath the surface that makes the entire space feel impeccably crafted.

Choose MAPEI Uncoupling Membrane Mortar to secure your next tile installation with strength, versatility, and large-format confidence.

Installation