Sika’s full line of polymer-modified Portland cement mortars and adhesives have been formulated for a wide variety of applications such as large and heavy tile, rapid-setting installations, and more. Many SikaTile® mortars feature innovative Dustless Technology producing approximately 80% less dust than ordinary thin sets and are designed to promote cleaner working conditions and reduce mess. It uses less water and is creamier and easy to spread.


Frequently Asked Questions

There is a big range of mortars. How do they differ?

Mortars are designed to perform in a in a wide range of environments and situations, and for a variety of tile types and sizes.  Review product Technical Data Sheets or speak with Technical Services to find the right product solution.  

What type of mortar adhesive should be used for moisture-sensitive material?

SikaTile®-825 Epoxy Grout is a 100-percent-solids epoxy grout and mortar that should be used for moisture-sensitive material.

Why is open time important?

Open time is important when installing large tile, gauged porcelain tile panels and slabs (GPTP/S) and membranes with a fleece to give proper transfer and coverage. 

What do the designators ANSI A118.4 and A118.11 mean?

A118.4 is the minimum standard test that allows a mortar adhesive to bond to a porcelain tile. A118.11 is the minimum standard that allows for tile to be bonded directly over exterior-grade plywood in an interior application. 

What mortar should I use for mesh-backed tile?

SikaTile®-825 Epoxy Grout is a 100-percent-solids epoxy grout and mortar that bonds securely to mesh- or resin-backed tile.

What size tile needs LHT mortar?

Any tile larger that 15” on one side and/or heavier than 5 lb per sq. ft is defined as an large and heavy tile (LHT).  These oversized tiles demand mortars with specific bond and performance characteristics.

What does “medium bed” mean?

Medium bed is a manufacturer's termfor the allowance of tile mortar adhesive to have a maximum bond coat of ¾” thick. 

What does “No-Slake” mean?

The word slake means to let rest with water. When mixing standard mortar or grout with water, manufacturers recommend letting the product rest before remixing to allow the polymers to wet out. This ensures that the product performs to spec. Our products with No-Slake technology are ready to apply after the initial mix.

Can I use thinset to patch a surface?

No.  Thinset is an adhesive, not a patching or leveling compound. Thinsets are
designed to be a certain thickness and when that thickness is greater than what the thinset can handle, shrinking will occur. Use a product that is designed for patching or leveling.