Schönox SEZ Plus

Rapid-Setting Sand Cement Screed and Trench Filler: Non-sagging, rapid-setting sand cement screed for filling trenches or concrete voids to depths of 10″. Perfect for use as aggregate with all Schönox cementitious self-levelers. Ready for covering after approximately 24 hours  at 2″ and up to 72 hours at 2″ prior to installing wood floor, cork, or rubber. For interior use only.

Emicode - low-emissions product. HPS Schönox Subfloor Solutions

Technical Data

Compressive Strength

(ASTM C109/mod – days air cure only): 25N/MM sq / 6500 psi at 28 days


Approx. 11 sq.ft. per unit at a 1/2“ thickness


EC 1PLUS Regulated: very low emission


IEQ 4.3 Low-Emitting Materials-Flooring Systems, 1 point
MR 1.1 Building Reuse Maintain Existing Walls, Floors and Roof, up to 3 points
MR 1.2 Building Reuse Interior-Maintain Existing Interior Nonstructural Elements, 1 point

Working Temperature

Not below 41°F floor temperature

Pot Life

Approx. 30 minutes

Ready For Covering

After approx. 24 hours @ 2” thickness for ceramic tiles, textile and elastic coverings; after approx. 72 hours for wood flooring.

Shelf Life

18 months unopened


55lb. bag



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