DUROFLOOR-PSF is a two-component, solvent-free, transparent epoxy system. It offers high hardness and abrasion resistance. It is resistant to acids, alkalis, petroleum products and salt solutions. Certified according to EN 13813 and classified as SR-B2,0-AR0,5-IR4. CE marked.
DUROFLOOR-PSF is suitable for:
- Priming cementitious surfaces to be covered with epoxy floor coatings from the DUROFLOOR range.
- Sealing cementitious floors in industrial areas, warehouses, etc.
- Preparing resin mortars for floorings.
- Preparing material fo repairing cracks or smoothing substrates prior to application of flooring layers.
Substrate preparation
The flooring surface should be:
- Dry and stable.
- Free of materials that prevent bonding, e.g. dust, loose particles, grease, etc.
- Protected from negative-side water pressure.
Depending on the nature of the substrate , or should be prepared by brushing, grinding, sandblasting, water blasting, pellet blasting, etc. Following this, the surface should be cleaned from dust with a high-suction vacuum cleaner.
Mixing of the components
Components A (resin) and B (hardener) are packaged in two separate, pre-measured containers, with fixed mixing ration by weight. The entire contents of component B is added to component A. The 2 components should be mixed for about 5 minutes with a low-speed mixer (300 rpm). It is important to thoroughly stir the mixture near the sides and bottom of the container, to achieve uniform dispersion of the hardener.
Application-Consumption
Depending on the use of DUROFLOOR-PSF, there are different cases of application:
a) Priming
DUROFLOOR-PSF is applied by roller, brush or spray in one layer. Consumption: 200-300 g/m2. The qualified DUROFLOOR system is applied within 24 hours and after the primer has hardened. In case the DUROFLOOR system is to be applied after the first 24 hours, quartz sand (0.1-0.4 mm or 0.3-0.8 mm) should be spread on the surface, while the primer is still fresh, in order to ensure good bonding. After DUROFLOOR-PSF has hardened, any loose grains should be removed with a high-suction vacuum cleaner.
b) Sealing of cementitious surfaces
DUROFLOOR-PSF is brushed on the prepared surface in two layers. Consumption: 200-250 g/m2/layer. To prepare slip-resistant surfaces, quartz sand (0.1-0.4 mm (or M32) or 0.3-0.8 mm) is broadcast on the still fresh first layer of DUROFLOOR-PSF. After DUROFLOOR-PSF has hardened, any loose grains should be removed with a vacuum cleaner. Finally, the second layer of DUROFLOOR-PSF is applied. Consumption of quartz sand: 2-3 kg/m2.
c) Preparation of resin mortars
The surface should be primed with DUROFLOOR-PSF. Consumption: 200-300 g/m2.
Depending on the layer thickness, the quartz sand should have a particle size of 0.1-0.4 mm (or M32) or 0.3-0.8 mm. Components A and B of DUROFLOOR-PSF should be thoroughly mixed. Then, the quartz sand is added under continuous stirring and mixed until the resin mortar has become homogeneous. The epoxy mortar is applied at a minimum thickness of 8 mm with the help of guides and compacted with a smoothing machine. Resin-mortar consumption: approx. 2.0 kg/m2/mm of layer thickness.
d) Repair – Smoothing
Priming with DUROFLOOR-PSF should take place first. Consumption:200-300 g/m2. Depending on the layer thickness, quartz sand should have a particle-size of 0.1-0.4 mm (or M32) or 0.3-0.8 mm, and should be added into the already mixed resin (components A+B). It is important that sand and resin are thoroughly mixed. The repair material is applied on the surface in one layer. Consumption: approx. 1.8 kg/m2/mm.
