Workability & Water Retention in Mortars
Mortar that dries before it bonds never had a chance to perform.
High-Performance & Durable Concrete
Workability & Water Retention in Mortars
Water Repellency & Moisture Protection
Rheology & Viscosity Control
Fade-Resistant Color & High Tinting Strength
The specifier's challenge (what problem is solved)
In hot, dry or windy site conditions, fresh mortar loses mix water to the substrate and atmosphere too fast — cutting hydration short, shrinking open time, and weakening final adhesion.
How it works
(technical mechanism)
Modified HPMC and MHEC cellulose ethers thicken the mix water and hold it in the matrix, giving cement the time it needs to hydrate properly while improving consistency, workability and open time.
Main applications
Ceramic tile adhesives, render/plastering mortars, wall fillers & levelers, cementitious waterproofing membranes, self-leveling compounds, repair mortars, grouting mortars, gypsum-based mortars



Supporting data or statistics
Six viscosity grades from 12,000 to 80,000 cPs, so each formulation can be tuned for open time, sag resistance and water retention
Applicable norm/standard
ASTM C270 for masonry mortars incorporating these admixtures
Products - Cellulose Ether (Kemicell)
Kemicell® 60.000
25 kg bags, light yellow fine powder
Key technical specifications:
HPMC | Moisture max 8% | Density 350-450 g/l | pH 6.0-8.0 | Viscosity 55,000-65,000 cPs. Highly recommended for tile adhesive mortar and coarse mixes
Dosificación típica:
0.25%-0.3% of dry mix
Packaging available:
25 kg bags
Kemicell® 80.000
25 kg bags, light yellow fine powder
Key technical specifications:
HPMC | Moisture max 8% | Density 400-500 g/l | pH 6.0-8.0 | Viscosity 70,000-80,000 cPs. Highly recommended for tile adhesive mortar and repair mortar; recommended for sprayed mortar and bonding mortar.
Dosificación típica:
0.25%-0.3% of dry mix
Packaging available:
25 kg bags
Kemicell® MT 25.000 T
Fine light yellow powder
Key technical specifications:
Modified cellulose ether | Moisture max 4% | Density 270-470 g/l | pH 6.0-8.0 | Viscosity 20,000-30,000 cPs. Highly recommended for grouting mortar and tile-setting mortar; recommended for waterproofing mortar, repair mortar and gypsum plaster.
Dosificación típica:
0.25%-0.3% of dry mix
Packaging available:
25 kg bags
Kemicell® DS40
25 kg bags, light yellow fine powder
Key technical specifications:
HPMC | Moisture max 10% | Density 420-620 g/l | pH 6.0-8.0 | Viscosity 40,000-50,000 cPs. Highly recommended for ceramic tile adhesives
Dosificación típica:
0.25%-0.3% of dry mix
Packaging available:
25 kg bags