The two-component vapour permeable water-based epoxy composition is a specifically designed water-based epoxy resins composition that provides a thin-layer industrial polymer flooring. It forms a smooth and non-slip surface with high mechanical strength and chemical resistance after drying. Can be used for floors and walls as well as applied in high humidity conditions and on a wet substrate.
It is used as the main layer of seamless polymer coatings when installing polymer flooring. It can be applied to concrete and other mineral substrates that are not subject to significant deformation and vibration loads.
High strength and scratch resistance characterize the coating. The fully cured coating is highly resistant to water and aggressive substances of low and medium concentrations. High hygiene and fire safety level. Weather impact resistant. Very high resistance to abrasive wear and chemicals such as oils, petroleum products, salts.
The composition is used for installing floors in food industry industrial premises including those with wet technological processes, agricultural premises (storage, greenhouses, glasshouses, premises for animals and birds), offices, medical and children's institutions, trade and catering enterprises, hotels, exhibition halls, entertainment institutions, car services and parking lots.
Technical parameters
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Indicator name and unit measure
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Indicator value
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Appearance and dried coating film colour
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A homogeneous and smooth surface of grey or other colors as agreed with the customer
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Mixture non-volatile matter mass fraction, % , not less
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80
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Mixture slump loss time (spreadable life) at a temperature (20±2) ºC, min, not less
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30
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Drying time to degree 3 at temperature (20±2) ºC, h, no more
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6
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Adhesive strength not less than, N/mm2
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2.5
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Density at temperature (20±2) ºC (components A+B), g/cm3
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1.3±0.05
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Mechanical loads are permissible in, days
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1.5
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Abrasive wear, mm3/m
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12
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Hardness, c.u., not less
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0.5
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The components ratio, A: B by weight
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4.0:1
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The next coating shall be applied after, no later than, h
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48
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Recommendations for use
Concrete substrate properties and preparation requirements
Concrete substrate properties and surface preparation methods must comply with the current construction and technical standards. The substrate shall be solid, homogeneous, clean, dry, free from oils, fats, crumbling areas, old coating flaking residues and other contaminants that prevent the adhesion and primed with the water-based primers Defens EP -02, Defens EP -04.
Defens EF -131W shall be applied no later than a day after applying the primer layer. Concrete substrate basic requirements: compressive strength — not less than 20 N/mm2, tear strength — not less than 1.5 N/mm2. Concrete substrate shall be treated with abrasive tools, bead-blasting, milling or grinding equipment. For concrete floors with a reinforced top layer, only bead-blasting is allowed. The dust formed during processing shall be carefully removed with an industrial vacuum cleaner. Consumption 0.2-0.4 kg/m2
Application conditions requirements
The primer components temperature, substrate surface temperature and the ambient air temperature in the work area: from + 10°C to + 25°C.
Attention! The substrate surface temperature shall be at least 3°C above the measured dew point both during the primer application and primer layer complete polymerization/drying required time. Relative humidity: not more than 70 %.
Application method
Pour the entire volume of the comp. 1 and 2 in a mixing container of the appropriate volume and mix thoroughly until smooth for 2-3 minutes. To mix the components, use a low-speed (300-400 rpm) mixer with an electric drive.
DO NOT MIX THE COMPONENTS MANUALLY!
Attention! Depending on the components reactive capacity, the epoxy composition curing process is accompanied by the release of a certain amount of heat. Epoxy composition mixture self-heating in the mixing tank can provoke its premature curing. Therefore, it is strongly not recommended to leave the prepared epoxy composition mixture directly in the mixing tank for a long time.
Application method: use a serrated spatula to pour and level until the desired thickness is reached. To ensure high surface quality and guaranteed air bubbles removal from the coating, it is necessary to roll the freshly applied coating with a needle roller. The rolling shall be carried out in different directions slow and sure for 2 minutes until the bubbles complete removal and finished as the coating viscosity increases. Do not remove the roller from the material when rolling. Attention! Work shall be carried out at a temperature not lower than + 150 C. The material temperature shall be within + (15-250 C).
Packaging and storage
The composition is supplied in sealed metal containers. The kit consists of two components (A, B), total weight — 10 kg; 20 kg. Store the composition in a tightly closed container, keep away from moisture, direct sunlight, heat sources, at a temperature of -10 to + 30°C without condensation. The storage warranty period is 6 months from the manufacture date subject to compliance with the storage conditions.
Tools cleaning
Work tools and equipment shall be washed with soap and water immediately after use. The cured composition can only be removed mechanically.
Security precautions
Persons working with epoxy composition shall be provided with personal protective equipment. All work shall be carried out in rooms equipped with supply and exhaust ventilation. In case of contact with skin or eyes, rinse thoroughly with water and seek medical advice if necessary. After complete drying and polymerization, the seamless floor is completely safe and allowed for operation in public, residential and industrial premises, including food production, catering, pharmaceutical industry, agriculture, in rooms for children and medical institutions.
When carrying out work, use personal protective equipment, avoid contact with eyes, respiratory tract and skin. Keep away from fire.
Епоксидний фініш на водній основі Defens EF-131 W.pdf