MAPEI Ultralite Mortar

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. This high-performance, polymer-modified mortar features a very low emission of volatile organic compounds and includes an offset of greenhouse gas emissions. It is formulated with Easy Glide Technology for ease of application, and with BioBlock technology for mold and mildew resistance. MAPEI Ultralite Mortar utilizes Ultralite Technology for twice the coverage of a standard thin-set mortar per pound/kg and contains more than 20% recycled content.

Technical Data Sheet


Which tile mortars are recommended for use over Mapelastic® AquaDefense?

MAPEI mortars for use over Mapelastic AquaDefense are: Ultraflex® LFT™, Ultraflex LFT Rapid, Ultraflex LHT®, Keraflex™ Plus, Ultraflex 1, Keraflex SG, Ultraflex LHT SG mixed with Keraply®, Adesilex™ P10 Mosaic & Glass Tile Mortar mixed with Keraply, MAPEI Ultralite™ Mortar and Kerapoxy® 410.

Is a polymer-enriched mortar the same thing as a latex-modified mortar?

Yes, there are several terms used to describe a cement-based tile mortar that contains polymer, such as "latex-enriched," "latex-modified," "polymer-enriched" and "polymer-modified." MAPEI's Ultraflex® 1, Keraflex™ SG , Keraflex Plus , Ultraflex LFT™, MAPEI Ultralite™ Mortar and Adesilex™ P10 Mosiac & Glass Tile Mortar contain polymer and are considered modified.