EPOLIS EP 300

The concrete substrate must be made of concrete of at least C20/25 grade, with a compressive strength of minimum 25 MPa and a tensile strength of at least 1,5 MPa, measured by the pull-off method. The substrate must be stable, continuous, even, bonded, seasoned (min. 28 days) and dry (moisture content of max. 4%). It must be clean and free of oil, grease, cement laitance and other substances that impair adhesion. The substrates should be cleaned mechanically, dust, any loose layers and sharp protruding edges should be removed. It should be properly roughened mechanically, paying particular attention to watertight and very smooth substrates. An adherent, absorbent surface with an open pore structure should be obtained. The strength of the substrate must be adapted to the service loads.
Prime the substrate with NEXLER EPOLIS EP 200 or NEXLER EPOLIS EP 100. NEXLER EPOLIS EP 100 deep penetrating epoxy primer should be used when the substrate is stable, without visible damage, but its strength is not sufficient and it requires additional reinforcement.
In case of larger defects and unevenness, apply a levelling and filling layer of NEXLER EPOLIS EP 200.
For larger areas, make expansion joints by incising the finished floor at the natural expansion joint locations. Fill the resulting gaps with flexible polyurethane compound.
For substrates on the ground, waterproofing or damp proofing is absolutely required. Most resin systems are vapour-impermeable, so a tight waterproofing of the substrate, which also acts as a vapour barrier, is necessary. The absence of such waterproofing causes an increase in vapour pressure beneath the surface of the resin coating, which over time leads to its detachment. If there are doubts about the effectiveness of the waterproofing, the need to change the system solution and use a system based on NEXLER EPOLIS WE 200 should be analysed.

Check the production date on the packaging before use. The product should not be incorporated beyond its shelf life. The product, once opened, should not be objectionable and should be free of any mechanical contaminations. Filler may settle at the bottom of the product container, which does not constitute a defect in the product. Mix the product thoroughly before use to achieve a homogeneous colour and ensure even distribution of the ingredients.

All flooring materials must be seasoned for at least 24 hours in the conditions in which the flooring will be made.
Components A and B are supplied in a proper mixing ratio. Mix component A in the delivery vessel in order to homogenise and evenly distribute the mineral filler. Then add the total amount of ingredient B and mix with a mechanical stirrer at 300 - 600 rotations per minute for approximately 3 minutes. While mixing, scrape the mixture from the sides and bottom of the vessel with the mixer to ensure thorough distribution of the hardener. After mixing, pour the material into the working vessel and mix again.
If partial use is assumed, the product should be prepared maintaining the weight ratio of the components (1 part component A and 0,20 of component B). It is very important to strictly adhere to these proportions and to use scales to ensure accuracy.
The permissible application time of the mixed material at a temperature of +23°C is up to 25 minutes. Increasing the temperature reduces the open time of the resin and its viscosity. Lowering the temperature increases the open time of the resin and its viscosity.

When fresh, check the consumption of the material per unit and/or dedicated area on an ongoing basis.
The appearance of the completed coating depends on the ambient temperature and humidity, the absorbency of the substrate and the method of application. The bonded coating should have a uniform texture, without bulges, air bubbles, wrinkles or cracks.

Self-spreading flooring: The mixture is spread evenly to the desired thickness with a notched squeegee, trowel, spatula, comb or gauge rake. The layer of resin must then be deaerated immediately with a spiked roller. The resin in the self-spreading version can be used on surfaces with a slope of max. 1,5%. 

Anti-slip flooring: The fresh resin must be evenly covered with dried, fractionated quartz sand until it is completely saturated and dry, in order to achieve an anti-slip, rough texture. Depending on the degree of roughness required, sands with a grain size of 0,2 - 0,8 mm, 0,4 - 0,8 mm or 1,0 - 1,6 mm should be used. After the resin has hardened and cured, brush off and remove excess sand, lightly grind in order to remove the remaining loose grains of sand and vacuum and dedust thoroughly. Such prepared surface should be covered with a closing layer of EPOLIS EP 300 after a minimum of 8 hours. 

Self-levelling epoxy flooring: Add an appropriate amount of quartz sand gradually to the properly mixed EPOLIS EP 300 composition while stirring continuously. After thorough mixing, pour the mixture onto the properly prepared and primed substrate and spread with a gauge squeegee or serrated squeegee to the appropriate thickness. After 5 minutes from spreading, deaerate the resin layer with a spiked roller.

Thin-layer flooring: The ready-to-use EPOLIS EP 300 mixture is spread onto a suitably prepared and primed substrate with a paint roller. Apply the product in two layers. Apply the subsequent layer after a minimum of 8 hours. After an interval longer than 48 hours, grind and dedust the hardened surface.

Before use, please read the application details in the product's Technical Data Sheet.