Schönox AST

Synthetic Gypsum based rapid drying smoothing and repair compound suitable to provide a smooth finish on various substrates in interior areas. Schönox AST can be installed as a true featheredge.

Technical Data

  • Compressive Strength
    • (ASTM C109/mod-days air cure only): 23N/MM sq / 3600 psi at 28 days
  • Coverage

    (depending on texture of substrate)
    Per unit of 4.5kg/10lbs.:

    • Approx. 180 sq.ft. when applied as a true featheredge
    • Approx. 33 sq.ft. at 1/8″
  • Emicode
    • EC 1PLUS : very low emission
  • LEED
    • 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
    • MR 4 Recycled Content, up to 2 points
  • Pot Life
    • Approx. 20 minutes at 68˚F
  • Ready for covering
    • After approx. 30 minutes when applied as a true featheredge
    • After approx. 12 hours at 1/8″ thickness
  • Shelf Life
    • 1 year unopened
  • Working Temperature
    • Not below 41°F floor temperature
  • Packaging
    • Packaging
  • Packsize
    • 33lb. net weight in paper bags
    • 10lb. net weight in paper bags

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