Schluter ALL-SET Modified Thin-set Mortar

Schluter ALL-SET Thin-set Mortar

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Schluter ALL-SET Modified Thin-set Mortar
Starting at $33.65

Note: Most Schluter products are shipped factory direct, and are rarely back-ordered. Your order will ship in approximately 24 hours via UPS, and you may order more than the quantities it shows available. The quantities available reflect our in-store inventory.

For all Expedited Schluter orders shipping via overnight or 2nd Day Air, the order must be placed by 10am PST to qualify for same day shipment (Monday - Friday, excluding holidays).

The trademark of Schluter®-Systems is the exclusive property right of Schluter Systems L.P. and any commercial use is restricted except as permitted by law.

Product Description

Schluter ALL-SET Modified Thin-set Mortar is a specialized modified thin-set mortar engineered for use both under and over all DITRA and KERDI products. All of the Schluter-Systems thin-set mortars modified varieties can be used to set tile over Schluter DITRA, DITRA-HEAT, KERDI, and KERDI-BOARD products.


  • 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


  • Lifetime warranty when used with applicable Schluter products.


  • See Images for Schluter Coverage Table

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Product Specifications

Net Weight (lbs.): 50.00
Manufacturer: Schluter
Size (L x W x H): 21" x 12.5" x 4.5"

Product Questions & Answers

Q: How many square feet does one bag cover
Thank-you for asking this question: I have added a coverage chart to the pictures for Schluter; Set, All-Set, and Fast Set.
Customer Support answered on July 3, 2017
Q: How many sq feet does a 50 lb bag cover? Previous answer refers to a picture... where is that picture?
The second image in the product image gallery shows the coverage specifications for this product.
Customer Support answered on September 24, 2018
Q: I was always under impression that only unmodified should be used over ditra , is this modified shluter thinset ok to use over ditra ?
This is the answer from Schluter regarding the use of other manufacturers’ modified thin-set mortars to install tile over Schluter boards and membranes. .inNo .in Schluter's position on the use of other manufacturers’ thin-set mortars within their systems in general has not changed. .inWe have no control over the formulation of other manufacturers’ products and therefore cannot guarantee consistent, positive results with their modified thin-set mortars when installing tile to Schluter® boards and membranes. We continue to warranty other manufacturers’ modified thin-set mortars to bond DITRA to approved substrates.
Customer Support answered on October 22, 2018
Q: Can I use All Set to install ditra over 10 day old concrete?
Yes, The opened ribbed structure on the underside of the ditra mat allows the vapor released from the concrete to neutralize and in a lot of cases makes the concrete stronger because the moisture evaporation is slowed down in the concrete slab.
Customer Support answered on July 9, 2017
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