sand/cement screeds



High-strength screeds up to CT-C40-F7 and ready-to-lay from 4 days

CONTOPP® Accelerator 15 HD-RS


  • Ready-to-lay in 8 - 10 days (40 – 50 mm screed thickness for unheated screeds and 65 – 70 mm for heated screeds).
  • Rehydration protection.
  • CT-C40-F7

Application area

  • To produce bonded and floating cement screeds.
  • To produce screeds on underfloor heating.
  • Suitable for damp and external areas.

You can call us at +49 9324 91990

Consumption calculator

for KNOPP products

Please refer to the technical datasheet under DOWNLOADS for more information about handling and mixing ratios.