Schönox HS Sturdy 10lb

Hybrid Active-Dry Technology-based Rapid Drying Repair and Smoothing Compound suitable to provide a smooth finish on various substrates in interior areas. Schönox HS Sturdy can be installed as a true featheredge up to 2″ depths.

Emicode - low-emissions product. HPS Schönox Subfloor Solutions

Technical Data

Compressive Strength

30 N/mm² / 4,400 psi after 28 days


Approx. 180 sq.ft. when applied as a true featheredge
Approx. 12 sq.ft. at 1/8“ (depending on substrate conditions)


EMICODE EC 1: very low emission


EQc2 Low-Emitting Materials, 3 points
MRc1 Life-Cycle Impact Reduction, up to 2 points
MRc2 Environmental Product Declaration, 1 point
MRc3 Sourcing of Raw Materials, 1 point
MRc4 Material Ingredients, 1 point

Working Temperature

41°F – 90°F

Pot Life

Approx. 15 minutes

Ready For Covering

After approx. 30 minutes when applied as a true featheredge
After approx. 4 hours at 2″

Shelf Life

18 months unopened


10 lb. net weight in paper bags

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