Introducing three types of thin-set mortar from Schluter®-Systems: Schluter SET unmodified, Schluter ALL-SET modified, and Schluter FAST-SET rapid-setting.

New! Thin-set mortars designed by Schluter, for Schluter products.

All Schluter-Systems’ thin-set mortars, including the ALL-SET and FAST-SET modified varieties can be used to set tile over Schluter®-DITRA, DITRA-HEAT, KERDI, and KERDI-BOARD products. Made right here in North America, Schluter thin-set mortars are formulated to ensure that you, the installer, get consistent and steadfast results with respect to sag-resistance, texture, and workability. Watch to learn more!

Mixin’ Mortar: Get the Best Results

Whether you’re setting tile or Schluter membranes and boards, the proper mixing technique is essential to ensuring perfect consistency, outstanding workability and optimal performance.


  • Sag-resistant, smooth, and creamy
  • Easy to handle and spread


  • Natural stone, ceramic, porcelain, and large and heavy tile (LHT)
  • Floors and walls, interior and exterior

Guaranteed Compatibility

  • Providing “single source” supply
  • No need to rely on third-party mortars and no more finger-pointing!


  • Lifetime warranty when used with applicable Schluter products. Click here for more information.

Select Your Thin-set

Schluter SET

Premium Unmodified Thin-set Mortar

Approved to set tile, including porcelain tile, over Schluter boards and membranes


Schluter ALL-SET

Specialized Modified Thin-set Mortar

Engineered for use both under and over all DITRA and KERDI products


Now available!

Schluter FAST-SET

Specialized Rapid-setting Thin-set Mortar

Ready to grout in 4 hours for fast-track projects

Coverage Table

Product Table

Schluter®-Systems Thin-set Facility

For quality assurance, producing thin-set mortar in-house was important to Schluter-Systems. So much so, that a brand new manufacturing facility was erected in North America just for thin-set production. Check out the facility for yourself!