DUROPRIMER-PRO is a two-component, solvent-free epoxy primer, offering 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.
- Priming of cementitious surfaces to be covered with products from the DUROFLOOR range.
- Preparation of resin mortars.
- Preparation of material for repairing cracks or smoothing substrates before applying flooring layers.
Substrate
The flooring surface should be:
- Dry and stable.
- Free of materials that prevent bonding, e.g. dust, loose particles, grease, etc.
- Protected from underneath moisture attack.
Depending on the nature of the substrate, it should be prepared by brushing, grinding, sandblasting, water blasting, shot 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 delivered in premeasured containers with fixed mixing ration by weight. First, component A must be stirred until fully homogeneous. Then, the entire contents of component B is added to component A. Mixing of the 2 components should take place for about 5 minutes using a low-speed mixer (300 rpm). It is important to stir thoroughly the mixture near the sides and bottom of the container to achieve uniform dispersion of the hardener.
Application – Consumption
Depending on the type of application of DUROPRIMER-PRO, there are different cases:
a) Priming
DUROPRIMER-PRO is applied by roller or brush in a single layer.
Consumption: 250-400 g/m2.
The application of the selected DUROFLOOR system follows within 24 hours and after the primer has dried. In case the DUROFLOOR system is to be applied after the fist 24 hours from priming, quartz sand with particle size of 0.1-0.4 mm or 0.3-0.8 mm should be spread on the surface while the primer is still fresh to ensure good bonding. After hardening of DUROPRIMER-PRO, any loose grains should be removed using a high-suction vacuum cleaner.
b) Resin-mortar
The surface should be primed with DUROPRIMER-PRO.
Consumption: approx. 250-400 g/m2.
Quartz sand with particle size of 0.1-0.4 mm (or M32) or 0.3-0.8 mm should be used. Mixing should take place using a heavy-duty concrete mixer, adding the quartz sand first and following with the already mixed DUROPRIMER-PRO resin (components A+B). It is important that sand and resin are thoroughly mixed. The epoxy mortar is applied at a minimum thickness of 8 mm with the help of guides and compacted using a smoothing machine. Resin mortar consumption: approx. 2kg/m2/mm or layer thickness.
c) Repairing – Smoothing
Priming with DUROPRIMER-PRO should take place first.
Consumption: approx. 250-400 g/m2.
Quartz sand with particle size of 0.1-0.4 mm (or M32) or 0.3-0.8 mm, depending on layer thickness, should be added to the already mixed resin (components A+B). It is important that sand and resin be thoroughly mixed. The repair material is applied on the surface in one layer.
Consumption: approx, 1.8 kg/m2/mm.
DUROPRIMER-PRO is supplied in containers (A+B) of 10 kg and 30 kg, with components A and B delivered in premeasured containers with fixed mixing ratio.
