Universal Rapid Setting and Drying Thin-to-Thick Bed Mortar

  • Thin-to-thick bed applications up to 1 1/4″ (32 mm)
  • Fast setting; grout in 3 hours
  • Will not warp, stain or discolor moisture sensitive stone

A rapid-setting, Portland cement-based, polymer-modified mortar with MICROTEC® and self-drying technologies, ARDEX X 32™ MICROTEC® Universal Rapid Setting and Drying Thin-to-Thick Bed Mortar is ideal for moisture-sensitive natural stone, marble and granite installations. It will not contribute to staining, discoloration or warping of natural stone tiles. ARDEX X 32 can be used as a thin to thick bed up to 1 1/4” (31.8 mm) thick and is excellent for use with agglomerate and ungauged stones that require various mortar depths. Even at a 1 1/4” (31.8 mm) thickness, ARDEX X 32 is ready for grout in just 3 hours, making it ideal for same day interior or exterior fast track installations. ARDEX X 32 can be used over exterior concrete and masonry surfaces and over common interior substrates, including concrete, masonry and exterior-grade plywood.


Key Features

  • Fast setting – walk on and grout in 3 hours
  • Use as a thin, medium or thick bed mortar, up to 1 1/4″ (32 mm)
  • Ideal for use with moisture-sensitive stone, virtually eliminates staining, warping and discoloration
  • Water repellent; for fast track swimming pool and wet area applications
  • The ultimate mortar for interior and exterior ungauged stone applications
  • Ideal for use with heavy and large format tiles
  • Excellent sag resistance for walls and slump resistance for floors
  • Easy to mix and apply; mixes using just water
  • Ideal for rapid pre-smoothing of floors and walls prior to tiling


MICROTEC® Technology
Meets or exceeds ANSI 118.4
Meets or exceeds ANSI 118.11
Meets or exceeds ANSI 118.15
ISO Classification: ISO C2 FTE S1



Mixing Ratio:
5 3/4 – 6 1/2 quarts (5.5 – 6.1 L) of water per 40 lb. (18 kg) bag
*For smaller batches, use 3.25 parts powder to 1 part water by volume

Approximate Coverage per 40 lb. (18 kg) bag:
1/4” x 1/4” Sq. Notch trowel; 80 sq. ft. (7.4 sq. m)
1/4” x 3/8” x 1/4” Sq. Notch trowel; 60 sq. ft. (5.5 sq. m)
1/2” x 1/2” Sq. Notch trowel; 40 sq. ft. (3.7 sq. m)


Open Time: Up to 20 minutes
Pot Life: Approx. 1 hour
Adjustment Time: Approx. 20 – 30 minutes
Time to Grout: 3 hours
Colors: Gray, White
VOC: 0
Packaging: 40 lb. (18 kg) bag
Storage: Store in a cool, dry area. Do not leave bags exposed to sun.
Shelf Life: 1 year, if unopened
Warranty: ARDEX L.P. Standard Limited Warranty applies. Also eligible for
the ARDEX SystemOne™ Warranty when used in conjunction with ARDEX grouts and ARDEX caulks.

For complete product technical information, click on the Downloads tab and open the Technical Data download.

Product Overview


Technical Data


Safety Data Sheet-Gray


Safety Data Sheet-White



Specification Grouting