Semigloss water-borne special varnish

  • Wear resistant
  • Water-borne
  • Varnish

HELO AQUA 40 is a semigloss water-borne special varnish based on polyurethane dispersion. Contains UV protection. For wooden surfaces indoors and outdoors.

Use: Wooden plank floors and parquet floors as well as stairs indoors, wooden furniture indoors and outdoors. Product meets the requirements of toy safety standard EN 71-3:2019 for limit values for migration of chemical elements.

Surface preparation

The wooden surface must be dry, carefully sanded and cleaned from dust and other impurities.


Stir thoroughly both before use and between the applications, but be careful not to let air into the product. Stairs and furniture: Brush application is recommended for stairs and furniture. Prime with diluted HELO AQUA 80, if needed. Apply first a thin coat of HELO AQUA 40 varnish and let it dry for at least one hour. Sand the surface and remove all sanding dust carefully. Apply a second coat of varnish and let dry for about 3 hours before applying the third coat. Untreated parquets and wooden plank floors: Prime with 15 % diluted HELO AQUA 80 using brush or trowel. Finish with 2 - 3 coats of 10 % diluted HELO AQUA 40 using brush or trowel. Spread out the varnish in the direction of the pattern and the grain of the wood. Previously varnished floors: It is recommended that the surfaces are sanded to bare wood and that the instructions above for untreated parquet and wooden plank floors are followed. If the old varnished coat is in good condition HELO AQUA 40 varnish can be applied according to the instructions for finishing to a surface that has been carefully sanded (sanding paper no. 150 or finer). In this case, however, the varnish is first to be tested on a small area to ensure proper adhesion.

Application conditions

During the application and drying period the temperature of the ambient air, the surface and the product shall be above +10°C and the relative air humidity below 80%.


Must not freeze.

Airless spray nozzle size 0.009 - 0.015".
Solids abt. 32 % by volume
Volatile organic compound (VOC) EU VOC limit value (kat A/i): 140 g/l. The product's VOC: max. 140 g/l.
Gloss Semigloss
Tinting system Teknomix
Practical spreading rate 8 - 12 m²/l.
Drying time – dust free 1 - 3 h
Drying time – dry to use The surfaces can be taken into use 24 hours after application of the last coat. The varnish reaches its final hardness within 1 - 2 weeks. Hard abrasion is thus to be avoided during 2 weeks after the treatment.
Drying time - overcoatable 1 - 3 h
Thinner Water.
Clean up Warm water and RENSA BRUSH brush cleaner. Wash the equipment immediately after use.
Colours Clear. Can be tinted to translucent shades.
Packages 0.45 l, 0.9 l, 2.7 l, 9 l.
Safety markings See safety data sheet.
Approvals & certificates M1 classification,EN 71-3:2019,Finnish Key Flag