Keraflex SG

Standard, Extra Smooth, Large-and-Heavy-Tile Mortar with Polymer

Keraflex SG is a standard-grade, versatile, large-and-heavy-tile mortar and thin-set mortar for tile and stone installations on floors, walls and countertops. It is formulated as non-sag for walls and nonslump for floors. Keraflex SG is a polymer-modified mortar formulated with Easy Glide Technology™ for ease of application and offers good adhesion to substrates and tile. It can also be used as a mortar over uncoupling, crack-isolation, sound-reduction and waterproofing membranes.

Technical Data Sheet

Available Colors

00 White
09 Gray


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.

What is the right mortar for my tile size?

Cement thin-set mortars, such as MAPEI's Keraflex™ SG and Porcelain Tile Mortar, are good for tile up to 15" (38 cm) on any side. If your tile has any side longer than 15" (38 cm), you will need a large-format-tile (LFT) mortar, such as MAPEI's Keraflex Plus or Ultraflex® LFT™ .

Can I use MAPEI's Keraflex™ SG for porcelain tile?

Yes, MAPEI's Keraflex SG can be used with both porcleain and ceramic tiles.

Can I use MAPEI's Keraflex™ SG for ceramic tile?

Yes, MAPEI's Keraflex SG and Keraflex Plus can be used with both procelain and ceramic tiles.

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.