Description Product Overview ARDEX K 55 is a high-performance, ultra-rapid drying levelling and smoothing compound developed for projects where speed is critical. It utilises ARDEX Ardurapid technology to achieve rapid strength gain and drying, allowing floor coverings to be installed in as little as 1–2 hours under ideal conditions. The compound delivers excellent flow and self-smoothing characteristics, producing a flat, smooth finish without the need for secondary sanding or patching. It can be applied from a true feather edge up to any required thickness in a single application, making it suitable for a wide range of repair and levelling scenarios. ARDEX K 55 is suitable for internal applications across both residential and commercial environments, including fast-turnaround retail and refurbishment work. Key Features Ultra rapid drying – ready for floor coverings from approx. 60 minutes Walkable in approximately 45–60 minutes Feather edge to any thickness in one application Excellent flow for smooth, level finish No sanding or secondary finishing required Suitable for fast-track commercial and retail projects Compatible with a wide range of floor coverings Extended shelf life up to 24 months (unopened) Applications Rapid levelling of internal concrete subfloors Subfloor preparation prior to vinyl, carpet, and timber flooring Application over existing tiles and prepared substrates Fast-track refurbishment and retail fit-outs Repairing uneven or damaged subfloors Use with ARDEX moisture control systems where required Notes Mix with clean water to achieve a fluid, self-levelling consistency Working time approx. 10 minutes (site dependent) Apply using gauge rake and smooth with trowel or spike roller Apply from feather edge to required thickness in one coat Walkable in approx. 45–60 minutes Install floor coverings once surface is sufficiently hardened (approx. 1–2 hours) Prime substrate with appropriate ARDEX primer where required Technical Information Technical Specifications: Type Cement-based levelling and smoothing compound Technology Ardurapid ultra-fast drying system Application Thickness Feather edge to any thickness Walk-On Time Approx. 45–60 minutes Ready for Floorcoverings Approx. 1–2 hours Working Time Approx. 10 minutes Coverage Approx. 13 m² per 20kg at 1mm Consumption Approx. 1.62 kg/m² per mm thickness Substrates Concrete, screeds, tiles (prepared) Location Internal, above and below grade Application Method Hand or pump applied Packaging 20kg vacuum sealed bag Shelf Life Up to 24 months (unopened) This levelling compound is designed for high-speed flooring installations where downtime must be minimised. Its ultra-fast drying properties and excellent flow characteristics make it suitable for commercial projects requiring immediate turnaround and consistent surface finish.
