How to apply Synteko SEALMASTER

Waterbased primers/ sealers are for sealing wooden and parquet floors before applying Synteko waterbased top coats in order to secure adhesion, reduce the risk of discoloration and side bonding. They are easy to sand, fast drying and have low grain rise.

  • Use an applicator with mohair felt 300-500mm & pile high ca. 5mm or roller ca. 300mm with 3-5mm pile high
  • Suitable top coats are all Synteko waterbased top finishes
  • Coverage: oak, ash 10-20 m²/L pine, spruce 10-15 m²/L beech 10-20 m²/L.

If you prefer to work with an applicator or roller when applying the first coat, it is very important that the application is even. An uneven first coat will result in uneven colour tones, especially on oak. Do not permit finish pools to remain on the floor. If the finish is poured directly from the container, it must be quickly spread before the wood absorbs too much moisture. If possible, apply the finish parallel to the shortest wall of the room (from one long wall to the other). Overlap times will thus be as brief as possible. Work gently with the tool so that no finish drops splash across the floor. Should this occur, the drops must be removed before the next coat is applied.  

The golden rule is to give the wood what it can absorb. You thus attain the best foundation for the next coat, and at the same time, the drying time is optimised. Be sure to apply enough finish to achieve even wetting of the wood. A wet finish darkens the wood, but afterwards as the finish dries, the wood lightens again. Wait until the wood has an even colour tone before performing intermediate sanding. If the finish coat is thicker in some places, it takes longer for the water in the finish to evaporate and the surface appears spotty because of colour differences. If the next coat is applied too early, it will take a long time before the floor achieves an even colour tone.

To enhance the colouring of exotic woods and reduce the discolouring of waterborne finishes, it is recommended that you use Synteko NATURAL. It can also be used for sealing chemically treated wood e.g. ammonia treated wood.