Natural Sealer

Item number:

Water Based Wood Floor Sealer

  • Quick-drying, sandable after 120 minutes
  • Reduces side-bonding
  • Minimizes penetration of tannic acid
  • Gives the wood a light colour

*The wood sample is shown on oak

1 Gallon
169.070 FL.OZ.

Product details

  • Description
  • Specifications
  • Technical data sheet
  • Safety data sheet


75 g/l. (max)


1.00-1.10 g/ml.


pH 7-8

Shelf life:

2 years

Application Temperature:

+59-77°F and approx. 50% air humidity.


325-490 sq.ft./Gal


Colorless - Satin

Cleaning of tools:

Use water


+50-77°F. Keep out of reach of children. Do not expose to heat (e.g. sunlight). Store frost-free during winter and cool during summer.


1 Gallon, 169.070 FL.OZ.


25-30 Sec. DIN Cup 4





Solid content:


Drying time:

1-2 hours at 68°F


If drying times are not followed, this can result in poor adhesion and reduced resistance. For each layer of Natural Sealer, drying times will be increased. High temperature and low air humidity will reduce drying times. Low temperature and high air humidity will extend drying times.

Natural Sealer is a one component sealer that keeps the natural color of the wood while protecting it from side bonding, tannin penetration. This product is designed to build quickly and give a great foundation for one of WOCA’s waterbased finishes to be over it. Natural Sealer is extremely low VOC content make it a great choice for those worried about indoor air quality. It is quick to sand or recoat in just 120 minutes. WOCA’s sealers are made with ease of use in mind with technology that significantly reduces overlap marks and increases flow to make the toughest job easy. For complete application, care and use information please see our website or TDS.


Products in use
It is important that both wood and product have a temperature of min. 59°F (preferably around 68°F) and air humidity of approximately 40-60 %. Make sure that the room is well-ventilated for optimal evaporation and drying time. Untreated floors must be free of dirt, grease, wax and dust. Floors that have been finished previously must be sanded down to bare wood before the sealer is applied. Vacuum thoroughly and tack the floor afterwards if necessary, using a tightly-wrung water-soaked cloth. Shake the Natural Sealer thoroughly before use.

Always remember to test on a less visible spot to check the compatibility of the surface with the product.

  1. Apply the primer undiluted with brush or roller, following the wood along its length, and allow the surface to dry.
  2. Sand the surface with 120-180 and vacuum clean the surface thoroughly.
  3. Apply a layer of topcoat with one of the WOCA floor lacquers. Leave the surface to dry until next day.
  4. Apply another 1-2 topcoats.
Only 2 coats of Natural Sealer and/or floor finish can be applied each day.