MAPEI’s Keraflex Membrane Mortar is ideal for installing uncoupling, waterproofing, sound-reduction and floor-heating membranes… To find out more about Keraflex mortars, call 1-800-42-MAPEI or view the products' Technical Data Sheets.

Premium, Lightweight Mortar with Polymer for Large and Heavy Tile. MAPEI Ultralite Mortar is a premium-grade, lightweight, single-component mortar for large-and-heavy-tile and non-sag applications, and that can also be used for thin-set mortar installations.

MAPEI Ultralite Mortar Pro is a professional-grade, lightweight, single-component thin-set mortar that can also be used for large-and-heavy-tile and non-sag applications. This polymer-modified mortar is formulated with Easy Glide Technology for ease of application.

Read our guide — How to Grout Tile and Use Mortar — to learn the fundamentals on creating charming tile floors. Find MAPEI mortar at Lowe's today. Shop mortar and a variety of flooring …

Find MAPEI cement tile mortar, ready-to-use adhesives, floor-heating systems and more at Lowe’s. When planning a flooring update, you’ll want to start with surface-preparation materials, such as underlayment, flooring adhesives and grout. Installing a subfloor anywhere in your house requires the right flooring adhesive, too.

Premium Mortar is a premixed no-mess alternative to traditional thin-set mortars that require water and mixing. It is nonflammable and ready to use. AVAILABLE AT SELECT RETAIL LOCATIONS ONLY. Can I use mastic or a premixed tile adhesive over Mapelastic® AquaDefense?

Ultraflex 2 is a professional-grade, single-component, high-performance, polymer-modified thin-set mortar for interior and exterior installations of ceramic, porcelain and dimensional natural-stone tile.

Ultraflex 1 is a standard-grade, single-component, polymer-modified thin-set mortar for most interior and exterior installations of tile. This mortar has an above average content of a unique dry polymer, resulting in good adhesion to the substrate and tile.

A 25-lb (11,3-kg) bag provides the same coverage as a 50-lb. (22,7-kg) bag of standard polymer-modified mortar. Designed with Universal Color Formula for installations with light-colored stones and translucent marble.

Use as a medium-bed or thin-set mortar for installing tile and select natural stone on floors and walls. For use with uncoupling membranes. Mix with water - no additive required. Can be mixed with MAPEI's Polymer Additive (instead of water) for enhanced performance, and for setting a wider range of tile and stone over additional substrates