A high gloss mirror finish is found on a few wooden items like grand pianos, musical instruments, and some sculptures and fine furnishings. This type of finish requires more than the standard painting technique, which required a fair amount of skill in its own right. But the effort required can be justified for a few expensive items.
A mirror finish requires an extremely smooth surface. This smoothness is a combination of physically flattening the wood and then filling in the inherent gaps and imperfections. The filling in is done with a primer/filler, a more specialized version of normal wood primer that simply give a very flat surface.
The wooden surface need to be sanded flat, or to the required shape, and then primed. The surface should be left to dry for a least 24 hours. Check for any surface imperfections.
Paint the surface with super high gloss enamel. Avoid brush strokes.
Once dry, wait an additional 24 hours and very lightly roughen the painted surface with a green scouring pad. Be a light a possible, and avoid taking the paint off the edges.
Repeat the process and give several layers of enamel paint.
Do not use a scouring pad on the last coat. Instead use a cutting compound to give a satin finish. Porcelain cutting compounds (Kitchen Scrub) can work well for this. Do not polish! The cutting compound should give a slightly rough surface for the next step.
Make sure the surface is clean and spray with a high gloss clear coat. Use short, even, light strokes.
When dry, the result should have a deep mirror finish.
Painting services can recommend the best type of prime, paint and clear coat. Hardware stores are also a good source of advice. While we recommend professional house painting we realize that home have many furnishings that need painting too. Live in a home that make your life a better experience.