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Sikafloor® 81 Epocem |MCT CHEMICALS | SIKA PAKISTAN

Sikafloor® 81 Epocem is a high-performance, three-component, epoxy-based cementitious floor screed designed to provide a durable, strong, and chemical-resistant surface for industrial and commercial applications. This product is specifically formulated for resurfacing and repair of damaged concrete floors and is ideal for creating robust and seamless floors in environments that require resistance to mechanical wear, heavy traffic, and chemical exposure. Sikafloor® 81 Epocem is widely used in areas like warehouses, factories, garages, and production facilities where a tough and long-lasting floor is needed.

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USES
Sikafloor®-81 EpoCem® is intended for use by trained professionals. It is designed for interior industrial cementitious substrates, including vacuum-dewatered concrete floors, and can be used as:

  • Temporary Moisture Barrier (TMB): It enables the application of Sika® Epoxy, Polyurethane, and PMMA resin floors on substrates with high moisture content or green concrete.
  • Self-Smoothing Screed: Ideal for leveling or patching horizontal floors during new construction, refurbishments, or maintenance.
  • Unaesthetic Floor Topping: Suitable for non-ventilated, damp substrates.
  • Levelling Layer: Used under Sika® Epoxy, Polyurethane, PMMA flooring systems, tiles, carpets, laminate, wood, linoleum, and vinyl flooring.
  • Repair Mortar: Can be used to repair substrates before applying Sika® Epoxy, Polyurethane, or PMMA flooring systems.
  • Concrete Repair and Protection: Follows EN standards for moisture control, physical resistance, restoration, passivity, and resistivity (EN 1504-9).

CHARACTERISTICS / ADVANTAGES

  • Can be overcoated with resin-based floor finishes after 24 hours
  • Prevents osmotic blistering of resin finishes on damp substrates
  • Quick and easy application
  • Concrete repair mortar conforms to EN 1504-3: Class R4
  • Good leveling properties
  • Impermeable to liquids but allows water vapor to pass through
  • Resistant to freeze-thaw cycles and de-icing salts
  • Strong chemical resistance
  • Similar thermal expansion properties to concrete
  • Bonds well to both green and cured concrete, whether damp or dry
  • Good mechanical strength both early and final stages
  • Resistant to water and oils
  • Ideal for preparing smooth surface finishes
  • Low VOC emissions
  • Does not corrode reinforcement steel

ENVIRONMENTAL INFORMATION

  • Compliant with LEED v4 MRc 2 (Option 1) for environmental product declarations
  • Conforms to LEED v4 MRc 4 (Option 2) for material ingredient transparency
  • Meets LEED v2009 IEQc 4.2 for low-emitting materials
  • IBU Environmental Product Declaration (EPD)

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance to EN 1504-2 (Surface Protection for Concrete)
  • CE Marking and Declaration of Performance to EN 1504-3 (Concrete Repair)
  • CE Marking and Declaration of Performance to EN 13813 (Resin Screed Material for Internal Use)
  • Migration Test EN 23270, Kiwa Report No. P 8740a
  • Water Permeability Test DIN 1048-5, Polymer Institut Report No. P 3439
  • Fire Testing EN 13501-1, MPA Dresden Report No. 041706
  • Fire Testing EN 13501-1, Hoch Report No. KB-Hoch-170138
  • Sliding Test DIN 51130, Certificates No. 020044-17-7, 020044-17-7a, 020044-17-8a

PRODUCT INFORMATION

  • Chemical Base: Epoxy-modified cementitious mortar
  • Packaging: Pre-measured 23 kg units
    • Part A: 1.14 kg container
    • Part B: 2.86 kg container
    • Part C: 19 kg plastic bags
  • Appearance / Color:
    • Part A: White liquid resin
    • Part B: Transparent yellow liquid hardener
    • Part C: Natural grey aggregate powder
    • Final floor finish: Light grey, smooth and matte
  • Shelf Life: Part A and Part B: 12 months from production date; Part C: Confirmed by the manufacturer
  • Storage Conditions: Store in original, unopened, and undamaged packaging in dry conditions at temperatures between +5°C and +30°C. Refer to packaging for specifics
  • Density:
    • Part A: ~1.05 kg/l
    • Part B: ~1.03 kg/l
    • Resin mixed: ~1.72 kg/l
    • Mixed A+B+C: ~2.10 kg/l

TECHNICAL INFORMATION

  • Compressive Strength:
    • 1 day: ~15 N/mm²
    • 7 days: ~50 N/mm²
    • 28 days: ~60 N/mm²
  • Tensile Strength in Flexure:
    • 1 day: ~5.8 N/mm²
    • 7 days: ~11.1 N/mm²
    • 28 days: ~14 N/mm²
  • Coefficient of Thermal Expansion: 15.2×10⁻⁶ 1/K
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