A: Hi, Shasta~ I suppose you could, but it would be kind of pointless. The purpose of using an oil is that it gets absorbed into wood surfaces, and helps to moisturize the wood. I think using it on a painted surface would just leave a slick coating that wouldn't absorb. Maybe better to just use a surface cleaner like 409.
A: Hi. Lemon oil is used primarily to clean and nourish natural wood. Painted wood would be better cleaned with microfiber cloth that has been dipped in mixture of dish soap (not dishwasher soap) and warm water, with excess moisture squeezed out and applied gently to wood surfaces followed by damp fresh microfiber cloth to gently remove any soap residue.
A: It can be used on painted wood...but may not provide the effect you are looking for. The painted surface will be shiny, but oily after application. i use this product on bare wood (cedar) and stained & polyurethaned wood Murphy's Oil Soap is more suitable for painted wood
A: Old English Lemon Oil goes beyond cleaning and conditioning to help protect wood surfaces. The furniture oil contains a light mineral oil that goes beyond cleaning to revitalize your wood. It also helps protect against everyday stains like fingerprints, mustard, wax crayons, ketchup and candle wax.
A: I haven’t used Formsby’s but believe it contains tung oil which penetrates the wood. Old English cleans and polishes wood cabinets using a lighter mineral oil.
A: Hi, Maryam ~ It's worth a try, just cleaning the residue with the Old English. If that doesn't work, you may have to try a cleaner like 409, then quickly follow up with the Old English. If it's an unfinished wood picnic table, just sand lightly, then use the Old English. A lot of it depends on what the finish is on the table. If it's a very valuable piece, you may have to get it refinished. Eeks - sorry that happened!