Ardex K40HB is a fibre-reinforced, high-build levelling and smoothing compound that 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. The working time means trowel marks drop out easily, joins between mixes can be spiked up to 35 minutes after application, and there’s little or no additional preparation before fitting.

• Excellent flow and application properties
• It can be used on heated screeds

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