Tips and Techniques on How to Paint Wood

Proper technique when painting on wood can produce a better finish. These techniques will also work for varnishing wood. Varnish, a clear protective coating that’s either glossy or matte, can give the wood colored protection and sometimes will even enhance the wood grain and patterns. However, the finished look of the wood will always depend on the surface and type of wood being treated.

How to Prepare an Unpainted Surface
If you are painting a surface for the first time, it is important to start by sanding the surface first. Sanding the surface with a 280-320 grit wet or dry sandpaper will smooth and prepare the surface for that first coat. Sanded particles are removed completely using a lint-free cloth soaked with paint thinner, as the humidity of the cloth will pick up all loose sand. Follow these steps for a great finish:

  1. Apply a coat of white alkyd undercoat and let it dry for three to four hours.
  2. An aluminum wood primer is recommended when the wood is to be exposed to moisture. This type of primer will fill the wood pores and cavities in the wood.
  3. Apply two coats of alkyd enamel to finish your surface.
  4. Apply the first layer of finish, satin, semi-gloss or gloss, and allow it to dry. Remember to sand in between coats for a smoother finish.

Best Practices for Sanding in Between Coats

The best advice for sanding in between coats is to start with coarser grit sandpaper and follow it up by a medium grit, and then finish with a fine-grit sandpaper. A good tip: Spray a fine mist of water over the sanded surface that will raise the grain. Remember that the best way to sand is in the direction of the grain. Otherwise, it might damage your surface. The same advice goes if using an orbital sander; start with coarse and medium sandpapers and finalize with fine grit.

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