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Ardex K40 HB

Rapid Drying, High Build, Fibre Reinforced Levelling and Smoothing Compound

ARDEX K 40 HB is a fibre reinforced, high build levelling and smoothing compound designed for applications from 3mm up to a maximum of 40mm.

ARDEX K 40 HB hardens rapidly and can be walked on in as little as 2 hours, regardless of thickness, which means there’s minimal disruption on live sites, particularly those that are constantly in use by the customer or other trades.

ARDEX K 40 HB has almost double the working time of competitor products, which means trowel marks drop out with ease, joins between mixes can be easily spiked up to 35 minutes after application, and there’s little or no additional preparation before fitting!

Applications up to 5mm can receive resilient floorcoverings, including timber, after 6 hours, and thicker applications up to 40mm after 48 hours. Ceramic floor tiles can be fixed 2 hours after application.

  • Apply most floorcoverings after 12 hours
  • Receives light foot traffic in as little as 2 hours
  • Excellent flow and application properties
  • Can be used on heated screeds

Unit Size Available: 22kg

Technical Data:

Compressive Strength
Greater than 30 N/mm² at 28 days

Tensile Bedding Strength
Flexural Strength Greater than 8 N/mm² at 28 days

Suitable for underfloor heating


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