MATEX
Quick Contact
X

    Navigation
    Close menu
    Theme Color
    Light Dark

    Industrial Flooring

    Hardtop DM non-metallic dry shake floor hardener by MATEX being applied to fresh concrete

    Hardtop Dm

    Non-Metallic Dry Shake Floor Hardener

    HARDTOP DM is a high-performance, non-metallic dry shake floor hardener formulated from a premixed blend of hydraulic cement, hard-wearing aggregates, and selected additives for optimum performance. Applied to fresh concrete by the dry shake method, it trowels easily into the surface, forming a dense, non-porous layer that is highly resistant to abrasion, impact, and petroleum-based products. HARDTOP DM creates a non-dusting, monolithic bond with the concrete base, is suitable for both internal and external use, and will not rust when exposed to moisture. Supplied ready-to-use, it ensures factory-controlled quality and is available in a range of colors to enhance the work environment.

    Technical data:
    • Color/Appearance : cement grey. Brick red, brown, green powder
    • Application rate : 3-5 kg/m²
    • Coverage : 2-3 kg/m² (light and medium duty) , 3-5 kg/m² (heavy duty)
    • Packaging : 25 & 50 kg bag

    How to Apply Hardtop Dm

    Hardtop DM is broadcast onto stiffening fresh concrete in two stages at 3–5 kg/m² in total, floated in after each stage and cured under polythene.

    1. Check the base concrete. The base concrete should have a minimum cement content of 300 kg/m³. Start without delay once it has stiffened so that light foot traffic leaves an imprint of about 3–6 mm, bleed water has evaporated and the surface still has a wet sheen.
    2. First shake. Apply Hardtop DM evenly at 2–3 kg/m². When it turns uniformly dark from absorbing moisture from the concrete, float the surface.
    3. Second shake. Immediately after floating, apply the remaining 1–2 kg/m² evenly at right angles to the first. When the moisture has been absorbed, float again in the same way.
    4. Reinforce edges. At heavy wear areas such as floor edges, sprinkle extra Hardtop DM at ½ kg per linear meter in a 100 mm wide strip and hand trowel the surface.
    5. Final finish. Carry out final finishing once the floor has stiffened sufficiently. Never add water to wet out the surface, as it will undermine the quality of the concrete surface.
    6. Cure. For internal applications, cover the treated floor with polythene sheet taped at the edges.
    7. Clean equipment. Wash all equipment with clean water immediately after use, before the material hardens; hardened material can only be removed mechanically.

    Summary of the method in the Hardtop Dm Technical Data Sheet. Always follow the full TDS on site.

    Standards & Test Methods

    StandardTitleReferenced for
    ASTM C779Standard Test Method for Abrasion Resistance of Horizontal Concrete SurfacesRelative abrasion resistance

    Standards and test methods as referenced in the Hardtop Dm Technical Data Sheet. Values in the TDS are typical laboratory results under standard conditions.

    Frequently Asked Questions

    How much Hardtop DM is needed per square meter?

    Use 2–3 kg/m² for light and medium duty floors and 3–5 kg/m² for heavy duty floors. Coverage is approximate and subject to site conditions.

    When should Hardtop DM be applied to fresh concrete?

    Apply it when the base concrete has stiffened so that light foot traffic leaves an imprint of about 3–6 mm, bleed water has evaporated and the surface still has a wet sheen. Applying too early, while bleed water is present, reduces the benefit.

    Can Hardtop DM be used outdoors?

    Yes. Hardtop DM is for internal and external use, and its non-metallic aggregate will not rust when wet.

    What colors is Hardtop DM available in?

    Hardtop DM is available in cement grey, brick red, brown and green.

    What packaging and shelf life does Hardtop DM have?

    Hardtop DM is supplied in 25 kg and 50 kg bags. It can be used within 12 months of production date if stored unopened in dry conditions away from direct sunlight and high humidity.

    Quick Contact