Sikafloor-81 EpoCem Applications
Used as a Temporary Moisture Barrier (TMB) at a minimum thickness of 2 mm before the application of epoxy, polyurethane, and polymethyl methacrylate (PMMA) flooring systems. It can be applied to existing substrates in dry or highly damp conditions, as well as newly placed concrete that has begun to harden but has not yet fully cured.
Used as a Self-Smoothing Screed for:
Leveling or repairing horizontal concrete surfaces, including new construction and repair applications in environments exposed to severe chemical attack
Floor coating applications on damp substrates in poorly ventilated areas where no special aesthetic requirements are specified
Leveling layers for epoxy, polyurethane, and polymethyl methacrylate flooring systems, as well as cementitious screeds, tiles, vinyl tiles, carpets, and wooden flooring
Repair and maintenance of conventional cast-in-place concrete floors and vacuum-dewatered concrete floors
Extended with Quartz Sand for Use as Rendering and Repair Mortar:
– For epoxy, polyurethane, and polymethyl methacrylate floor coatings and screeds
Designed for Use on Cementitious Substrates:
Suitable for moisture control (Principle 2, Method 2.3 according to EN 1504-9)
Suitable for physical resistance (Principle 5, Method 5.1 according to EN 1504-9)
Suitable for concrete restoration (Principle 3, Method 3.1 according to EN 1504-9)
Suitable for preserving or restoring passivity (Principle 7, Methods 7.1 and 7.2 according to EN 1504-9)
Suitable for increasing resistivity (Principle 8, Method 8.3 according to EN 1504-9)
\* Refer to the Application Instructions and Product Limitations for further information.
Features / Benefits
Can be overcoated with resin flooring after 24 hours (at +20°C and 75% relative humidity)
Prevents blistering of resin-based coatings on damp substrates
Easy to apply, economical, and allows rapid project completion
Classified as an R4 repair mortar according to EN 1504-3
Good self-leveling properties
Impermeable to liquids while allowing water vapor transmission
Resistant to freezing and thawing conditions
Good chemical resistance
Thermal expansion properties similar to concrete
Excellent adhesion to both newly hardened and fully cured concrete, whether damp or dry
Excellent mechanical properties at both early and fully cured stages
Excellent resistance to water and oil
Provides a smooth surface finish
Suitable for interior applications
Solvent-free formulation
Non-corrosive to reinforcing steel
Packaging
23 kg set
Component A: 1.14 kg, packed in a plastic bottle
Component B: 2.86 kg, packed in a plastic bottle
Component C: 19 kg per bag
Appearance / Color
Component A: White liquid
Component B: Transparent yellow liquid
Component C: Grey powder
Mixed color: Light Grey
Cured color: Matte Grey












