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K301 - Exterior Self-Leveling Concrete Topping


Ardex K301 is an exterior self-leveling concrete topping that works on smooth new or existing concrete and approved non-porous surfaces. This product is suitable for use in wet areas and for interior or exterior applications. Can be applied over concrete and approved, properly prepared, non-porous surfaces, including terrazzo, epoxy coatings and ceramic and quarry tile – on, above or below grade. Available in bags of 50lbs. /22.7kg.

  • Interior or Exterior
  • Topping and underlayment
  • Suitable for use in wet areas
  • Suitable for use under the ARDEX MC Moisture Control Systems
  • Pourable and pumpable
  • Mixes with water only
  • General priming recommendations: EP 2000TM with sand broadcast
  • Packaging: 50lb (22.7kg)Coverage: 23sq.ft. per bag at 1/4” (2.1m2 at 6mm)
  • Thickness:
    • Neat: 1/4” to 3/4” (6mm to 19.6mm)
    • Aggregate: up to 2” (5cm)
  • Flow time: 10 minutes
  • Walkable: 2 to 3 hours
  • Waterborne sealer: 24 hours
  • ASTM C109 mod (air cure only) Compressive Strength: 4,300psi (301kg/cm2) at 28 days
  • ASTM C348 Flexural Strength: 1,000psi (70kg/cm2) at 28 days
  • VOC: 0
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