Culminal, Culminal Plus, and Combizell cellulose ethers

Words: Dan Kamys

Thin-bed mortar www.ashland.com

Thin-bed mortar is becoming a widely used, multi-functional approach to tiling, providing extended installation time, greater flexibility and strong adhesion. The popularity of large porcelain and stoneware tiles fixed on vertical substrates demands high-performance ceramic tile adhesive with outstanding sag resistance (high yield stress). Culminal and Combizell cellulose ethers help dry mortars to be applied more easily and to perform better, according to Ashland. All three products provide water retention and cohesiveness to mixtures. Key mortar benefits include the following:

  • Controlled thickening
  • Adjusted water demand and improved workability
  • Good open time and pot life
  • Reduced sag and increased strength
  • Compatibility with different electrolytes such as salts and alkali.


Ashland also supplies a wide range of Jaypol acrylates for D1 and D2 categories of latex based tile adhesives.

LVCC: N212

Masonry Repair and Retrofit: Materials and Systems for Long-Term Performance
May 2026

Masonry has defined architecture for centuries, prized for its strength, durability, and timeless aesthetic appeal. From historic sites to modern designs, masonry buildings are durable and visually distinctive. However, exposure to moisture, freeze-thaw c

Rethinking Shelf Angle Design for High-Performance Masonry Walls
May 2026

If you've been around masonry construction long enough, you know the shelf angle is one of those details that’s easy to take for granted. It’s been used the same way for decades, set it at the slab edge, support the veneer, move on. But as building requir

When Schedules Tighten, Experience Shows
May 2026

In construction, schedules rarely open up; they tighten. Weather delays, trade coordination, and last-minute scope changes all add pressure, even on jobs that were planned down to the minute. When that happens, experienced masons don’t start cutting corne

Shelf Angles and Their Impact on Wall Performance
May 2026

Shelf angles have long been a standard component in masonry construction. Installed at the slab edge, they provide support for brick veneer and are often treated as a routine detail. However, as building performance requirements evolve, particularly aroun