Painting a chipboard in high gloss - Procedure
Several steps are required to paint a chipboard. Should it get a high gloss, special care is required.
1. Preparing the chipboard
The surface of a chipboard is very rough, which makes painting difficult. To smooth them, three sanding cycles with coarse sandpaper (120 grit) are required. Grinding can be done by hand or with a non-rotating grinder. A proper cut, whether by machine or by hand, is never rotating, but executed parallel to an edge. After each sanding, also with the color layers, a thorough dedusting is necessary. This is best done by vacuuming and wiping with a damp cloth that does not fluff.
If the plate has indentations, additional filling must be made between the first and second sanding cycles. Important: The putty must belong to the same system as the paint. When painting with acrylic paint, the filler must also be water-based. So the plate is perfectly prepared for painting.
2. Primer before painting
The primer is special white primer or the selected slightly diluted paint. Again, the primer and the paint must be part of the same system. This painting can be done with a brush. Important: The brush must not lose bristles on the surface, so a foam brush is recommended. If the paint is dry, the first fine sanding with sandpaper in 240 grit takes place.
third Latest High Gloss Coatings
Now, four to five thin paint jobs are required. Since the layers must be very thin, only paint rollers may be used. With the rollers, the layers succeed thinner than with a brush. Between the orders, an intermediate sanding with 400 grit paper is necessary. This paper wears off quickly and often has to be replaced with fresh ones. Important: Each layer must be absolutely dry before sanding. The last layer of varnish is sanded very gently.
4th Apply a protective layer
The finish is a high-gloss clearcoat. It protects the underlying paint from light and scratches. For this paint job you should use a new role, so that no traces of paint in the clear coat can be seen. This layer is not ground.
5. Polish the plate until it shines.
The chipboard now shines, but true high gloss is only created by polishing. For this purpose, an eccentric polishing machine with sheepskin hood and high gloss polish is used. Now even the smallest pores disappear in the paint, creating a deep high gloss.