Can you sand Mexican pine?
Also to know is, how do you refinish Mexican pine furniture?
Scrape stubborn areas of the old finish with medium-grade steel wool. Sand the whole piece of Mexican furniture with 120-grit sandpaper, ensuring you remove any remaining bits of old finish. Wipe the surface clean with a tack cloth and sand again with 220-grit sandpaper to smooth the wood.
In this way, how do you whitewash Mexican pine furniture?
In the Whitewashing section, it mentions mixing 2 parts of any paint color you choose with one part water to make your own colored "whitewash" which is what is commonly done in Mexican rustic pine furniture.
The answer is no, you cannot whitewash over a pre-existing finish as the original stain or finish will create a barrier, and the whitewash will not be able to penetrate to the wood. You can, however, use solid stain over old panelling and it looks terrific.