As bleach can stain clothing, it’s always a good idea to wear old clothes when working with bleach.
Varnish removers are either chemical or citrus based. Chemical removers have strong fumes but can work in as little as 30 minutes. [4] X Research source Citrus based removers have less odor but work slower and may require multiple attempts. [5] X Research source You usually have to let your wood dry for a day or two after using a varnish or stain remover.
Make sure to read your package’s instructions, as some solutions may be applied one at a time instead of being mixed together.
If you’re supposed to apply the bleaches one at a time, apply one bleach in this fashion followed by the other. Depending on the type of bleach you’re using, you may have to wait a set number of minutes between applying each layer of bleach.
Some bleach kits include a neutralizer along with the bleach. If this is the case, preparing a homemade solution is not necessary.
Wear protective eye wear and gloves when handling finish as well. The chemicals can harm skin and sometimes emit hazardous fumes. [14] X Research source For oil-based finishes, use a charcoal respirator to avoid breathing in the chemicals.
Mix oxalic acid in a glass container, instead of using metal or plastic.