Apply casting resin as lacquer or in block form on the table top

Popular design elements or types of processing are coating a tabletop with cast resin. A transparent or colored protective layer several millimeters thick makes a table more sensitive, more attractive and heavier. At the same time, damage can be removed and holes closed.

Painting or embedding

There are basically two methods of processing a tabletop with cast resin. Applying a synthetic resin varnish is more similar to painting. It can be processed like a paint and, for example, sprayed on well and evenly.

  • Also read - Repair damaged wood with cast resin
  • Also read - Removing liquid and hardened casting resin
  • Also read - Polish casting resin slowly and cool

In the case of synthetic resin varnish on wood, layers up to one millimeter thick are referred to as varnishing or painting. Layer thicknesses from three to four millimeters are called embeddings. When selecting the suitable casting resin, the type of wood and the intended new condition of the table top must be taken into account.

Basically, synthetic resin or acrylic can be chosen as casting resin for a table top. For cost reasons, the more durable and often optically more attractive acrylic resin is usually dispensed with. If a synthetic resin comes into contact with wood, the fat content of the wood must be taken into account.

Degreasing indispensable

Some types of wood are quite fatty or acidic and can adversely affect the hardening and stability of the cast resin. While a wipe is usually sufficient for closed surfaces, cracks and holes require more intensive preparation. The table top must be washed as intensively as possible with acetone several times and dried each time. If possible, an immersion bath is recommended.

Cast resin experiences material shrinkage during hardening. It is important to have the right mixture of resin, hardener and additives for the corresponding workpiece size. The manufacturers specify shrinkage tolerances for their products. Refilling to compensate for shrinkage is hardly possible and creates tension up to crack formation.

Check polishability beforehand

When selecting the casting resin or synthetic resin, the ability to polish should be tested on a test cast. In the case of some transparent resins in particular, it cannot turn out to be satisfactory.

Tips & Tricks Build the side borders or the casting mold out of glass or metal and coat them with release agent. Avoid joints, interruptions or steps on the smooth tabletop edges, which you will later have to level out and remove mechanically.