Fiberboard is a common building material used for many kinds of furniture. Bookshelves, entertainment centers and even coffee tables are often created using fiberboard. You can update or otherwise improve fiberboard by painting it. To do this correctly, however, you will need to take a little extra time priming it than you would solid wood furniture because fiberboard is more porous. Other than that, painting fiberboard is similar to painting wood.
How to Paint Fiberboard
Put paper or a drop cloth down beneath the fiberboard object to be painted. At this time, also put on safety goggles/glasses. Lightly sand all surfaces and edges to be painted. Dust off the fiberboard afterward, using either a tack cloth or a dust cloth. The surface needs to be clean before you prime.
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Put on a painter's mask—primer gives off a lot of fumes—and open some windows to ventilate the area (or, preferably, do the priming outdoors).
Hold the spray primer at least 1 foot away from the fiberboard. Spray it evenly over the entire surface and then let it dry. For best results, add another coat of primer.
Use a paintbrush to apply a thin coat of paint on the fiberboard. Allow it to dry and then sand the surface very lightly. Sanding minimizes brush marks and allows the second coat to bond more easily with the first.
Dust off the fiberboard before applying the next coat. You will need to apply at least one more coat of paint, and probably at least three coats total, for best results.