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CX 38 Powerflex Plus Lightweight Thinset Mortar


UZIN CX 38 is an advanced lightweight, special cement-based, polymer-modified non-sag mortar for the installation of most large-format porcelain, ceramic, quarry, glass, mosaic, and natural stone in interior, exterior, freeze/ thaw, and submerged conditions.


UZIN CX 38 exceeds ANSI A118.4 for polymer-modified mortar performance, ANSI A118.11 EGP modified dry-set mortar, ANSI A118.15 TE, and ISO P1 for plywood underlayment performance and compatibility.

  • Large-format porcelain, ceramic, quarry, saltillo, glass, and most types of stable natural stone
  • Over properly prepared concrete, masonry, cement mortar beds, and leveling compounds
  • Over tile industry-recommended backerboards
  • Over gypsum wallboard (interior)
  • Over industry-standard plywood (interior, dry conditions)
  • Over radiant-heated substrates
  • Over properly prepared, stable, and well-bonded ceramic tile, vinyl floor coverings, and cutback adhesive (interior, dry conditions)
  • Over UZIN brand surface preparation products and membranes, where applicable
  • For the installation of tile and uncoupling systems
  • For interior and exterior, residential and commercial applications, with exceptional freeze-thaw properties
  • For pools, spas, plazas, walkways, and applications in submerged water saturation and freeze/thaw
  • For use as a skimming or patching mortar to prepare substrate voids and depressions up to 3/4" (19 mm)
  • Lightweight Additives
  • Designed for ergonomic handling, reducing strain on the body
  • Higher Yield per lb: 30 lbs (13.6 kg) of material effectively filling a 50 lb (22.7 kg) bag
  • Lower installed weight
  • 100% Recycled Aggregates
  • Formulated without silica sand – Reduced respirable silica
  • High-performance raw materials
  • Outstanding workability
  • Ensures smooth application
  • Easily passes through smaller notch trowels when needed
  • Easy mixing & trowelability
  • Exceeds ANSI A 118.15 TE - Outstanding resistance to vertical and horizontal sag, with exceptional time and mechanical adhesion.

Notch Size (in) | Notch Size (mm) | Coverage Range (sq. ft.) | Coverage Range (m²)

1/4" x 1/4" x 1/4" | 6 mm x 6 mm x 6 mm | 90 – 100 sq. ft |. 8.36 – 9.29 m²

1/4" x 3/8" x 1/4" | 6 mm x 10 mm x 6 mm | 63 – 70 sq. ft. | 5.85 – 6.5 m²

1/2" x 1/2" x 1/2" | 12 mm x 12 mm x 12 mm | 45 – 50 sq. ft. | 4.18 – 4.65 m²

30 lba per Each

54 Each per Pallet