ARDEX K 15 HB High Build Rapid Drying Smoothing Compound 25kg

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£29.93 inc. VAT
£24.94 ex. VAT
Calculated at Checkout


  • Apply from 5mm to 35mm in one application
  • Rapid hardening – walkable in approximately 2 hours, even with thick applications
  • Floorcoverings can be applied after 24 hours, regardless of thickness
  • Ceramic floor tiles can be fixed after 4 hours
  • Pumpable
  • Strong, high compressive strength

Coverage: Approximately 2.7m² at 5mm thick per 25kg bag

  Technical Datasheet   Safety Datasheet

Extra Information

Working Time at 20°C:
approx. 30 minutes
Flow Life at 20°C:
approx. 15 minutes
Initial Set (Vicat):
approx. 30 minutes
Final Set (Vicat):
approx. 2 hours
Compressive Strength (DIN 1164):
After 1 day 19.0 N/mm², After 7 days 27.0 N/mm², After 28 days 35.0 N/mm²
Tensile Bending Strength (DIN 1164):
After 1 day 4.5 N/mm², After 7 days 6.0 N/mm², After 28 days 8.0 N/mm²
Suitable for Underfloor Heating: