Water based polyurethane can be used with both latex and alkyd painted surfaces and will not alter the color unlike oil based polyurethanes which add a yellowish tint clean the shelves well before application and let the polyurethane dry for several days before putting the shelves back in service.
Cleaning painted wood shelves.
Painted kitchen cabinets that are settled with no short of what one layer of oil based paint are more extreme and along these lines more scrub able than latex painted wood cabinet cleaner wash painted cabinets with warm water.
On the off shot that oil makes wipe the cabinets with smelling salts and water.
If you have painted cabinet doors either your own diy project or the work of a professional there are some things to keep in mind.
When cleaning these surfaces create a soapy mixture with dish soap and warm water then wipe down the painted wood surface.
Wood furniture that is untreated that is unfinished or unsealed behaves much like a fresh unused board porous and absorbent.
Wash the surface with a moment material and clean water.
Apply two coats of water based polyurethane over the shelves.
If you d prefer a cleaning alternative feel free to use vinegar or ammonia instead.
If the shelves have greasy residue or dirt and dust build up see the guides how to clean kitchen cabinets and how to remove dirt build up from wooden furniture for additional cleaning tips and advice.
Top coat with polyurethane.
Additional tips and advice.
With a little bit of tlc your painted wood fixtures will be squeaky clean in no time.