VARNISH-PU 2K

VARNISH-PU 2K is a transparent, aliphatic, two-component polyurethane varnish. The membrane it forms is watertight and resistant to UV radiation; it does not turn yellow and has great mechanical and chemical resistance. It offers the following advantages:

  • Easy application
  • Resistance to UV radiation and weather conditions (rain,frost)
  • Resistance to detergents, oils, sea water, alkalis.
  • Vapor permeability
  • Resistance to pedestrian traffic and light vehicular traffic.

Certified according to EN 1504-2 and classified as a coating for surface protection of concrete. CE marked.
VARNISH-PU 2K is suitable for waterproofing and protection of:

  • Decorative microcement coatings
  • Concrete
  • Natural stone
  • Wood
  • Metal surfaces
  • Epoxy coatings (e.g. as protection of EPOXYCOAT-S inside swimming pools). It provides resistance to chalking and discoloration, caused by UV radiation.

Substrate preparation
The substrate must be dry, clean, free of grease, loose particles, dust, etc.

Mixing
Components  A (resins) and B (hardener) are packaged in two separate containers, at the correct, fixed mixing ratio by weight. All of component B is added to component A. The two components should be mixed for 2-3 minutes, using 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. It is advised to let it rest for a few minutes after mixing to help entrapped air escape.

Application – Consumption
VARNISH-PU 2K is applied by roller, brush, or airless gun. Depending on the porosity and intended use of the substrate, 2-4 coats are required. Each coat is applied within 24 hours from the previous one, depending on the weather conditions. Consumption: 70-120 g/m2 per coat, depending on the porosity of the substrate. Tools should be cleaned with SM-28 while VARNISH-PU 2K is still fresh.

24 months from production date if stored in original, sealed packaging, in areas protected from humidity, frost and direct sunlight. Recommended storage temperature: between +5 oC and +35 oC. It is advised to store component B tightly sealed in its original packaging, since in the event of contact with ambient moisture, it will harden.

 

  • Surfaces with entrapped moisture must be completely dry, prior to the application of VARNISH-PU 2K.
  • Application on epoxy systems must be done 1-2 days after their application and provided they have dried.
  • When applied in swimming pools, the pool must be filled with water at least 7 days after the application of VARNISH-PU 2K.
  • Surfaces where water-repellent impregnations have been applied in the past might cause adhesion problems. It is recommended to first perform a trial application, in order to check the compatibility of the substrate.
  • Temperature during the application and hardening of the product should be between +8 oC and +35 oC.
  • The substrate’s moisture content must be < 4% and the ambient moisture <65%. High ambient moisture < 65%. High ambient moisture can negatively affect the curing of VARNISH-PU 2K.
  • If the temperature is expected to be lower than +8 oC or there is a chance of rain in the next 48 h, the application must be postponed.
  • VARNISH-PU 2K is intended for professional use only.
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Surface: Concrete, wood, metal surfaces

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Application: Roller, brush, airless gun