Sand parquet properly and seal

The so-called renovation care includes the sanding and re-sealing of a parquet. While modern prefabricated parquet can only be sanded up to three times in the least expensive layers, higher-quality multi-layer parquets and solid wood finishes can be retreaded between ten and a dozen times.

Influence on purchase decision

If you buy a parquet, you should already consider how much your parquet will be used in the future and how often a renovation care, which includes the grinding and sealing, is to take place. For multi-layer parquet, the strength of the upper wear layer is decisive. A grinding process carries an average of 0.8 millimeters of wood. The lowest wear layer thicknesses are around twenty millimeters, which limits sanding and sealing to two times.

For very cheap products, especially from Asian manufacturing, the gluing of the wear layer with the backing layer can be faulty. As a result, damage can occur during the grinding process, including the third or fourth time, which leads to tearing and detachment of the wear layer from the carrier material. When choosing your parquet you should think and decide about the subsequent sanding and resealing.

Elaborate work

The complete sanding of a parquet is physically exhausting and generates a lot of dirt. In addition, the parquet is not accessible for about two weeks. Therefore, you should plan this costly care measure in advance. Small scratches or areas that have become dull can also be covered with temporary repairs and the time for the next complete renovation of your parquet can be postponed.

Oiled or waxed parquet floors can be partially worked up and accordingly less frequently sanded and re-sealed than the parquet lacquer-sealed wooden floors. With varnished parquet, repairs are only possible to a very limited extent and therefore an annual renovation care is usual.

Step-by-Step Guide

  • abrasive
  • sandpaper
  • Parkettlack
  • primer
  • Paint solvents
  • Sandpaper 120er and 150er grit
  • surface grinding machine
  • corner grinding
  • respiratory protection
  • safety goggles
  • vacuum cleaner
  • Wiping cloth or mop, no microfiber
  • brush
  • String role
  • extension rod
  • whisk
  • oxygen mask

1. Check wear layer thickness

It is best to check at the edge of the parquet with an expansion joint, which you can reach after removing a skirting board, if your multi-layer parquet still has enough wear layer. With solid and solid wood, this step is not necessary.

2. Whole or partial

If you sand down a parquet that has already been sealed with parquet lacquer, you must remove the entire surface evenly. With oiled parquet you can sand off individual areas.

3. Pre-cleaning

Your parquet must be cleaned of coarse dirt such as stones and sand, so that no new scratches occur during the grinding process.

4. Post-cleaning

After sanding, you must thoroughly remove the parquet surface from the wood dust. After vacuuming, wipe with a damp cloth or mop once or twice the total area and any buildup on the walls.

5. Primer

Begin by applying the primer opposite the room exit. Brush with lightly soaking the streamer and remove drops immediately. In sections, always paint with the grain. After drying for two to three hours, sand the parquet lightly with 150 grit.

6. Prepare the paint

Stir the paint over and wait for the air bubbles to escape from the paint. Protect the way from the bucket to the work surface before dripping by holding a rag under a brush or roller.

7. First coat

After dipping in the paint, spread it thinly and evenly away from the light immediately after putting it on the floor. For each new approach, overlap the painted surface so that wet paint mixes with the fresh paint. After drying for eight to ten hours, sand lightly the first coat of 120 grit sandpaper.

8. Second coat

The second coat of paint is applied like the first. To check where you have already painted, you can see against the light source where the already glossy dried first coat looks like wet. Ventilate regularly after completion of painting, but avoid drafts.

Tips & Tricks

One of the major sources of error after sanding and resealing your parquet is the inadequate cleaning between the two steps. The very fine wood dust that is produced during sanding is not only distributed on the wood surface, but also penetrates into the now exposed pores of the wood. Safe cleaning can be carried out with a powerful vacuum cleaner. Even in the laterally located on the wall, expansion joints dust can be removed with the vacuum cleaner most reliable.

Video Board: Sanding and Refinishing Hardwood Floors (step by step)