Oriented strand board, or OSB, is a common construction material composed of grasses of timber that have been pressed together to form one strong board. OSB boards typically have a stamp on the side that indicates its certification bureau, structural grade and bond durability. While these stamps help you pick the best board to your project, then buy, you might choose to take out the stamp for lots of reasons, such as to make painting easier.
Rub some ethanol on the stamp. Be sparing to prevent saturating the board. If the ink doesn’t begin to dissolve soon after program, wait for it to disappear and try acetone or dry-cleaning solvent instead. The varying compositions of inks make it difficult to predict what is going to dissolve it finest.
Scrub the ethanol to the stamp using a stiff brush, including a toothbrush, to loosen and remove as much ink as possible.
Wash the stamp with a gentle detergent and water. Again, use a stiff brush to scrub the postage and be sparing with the water and detergent. OSB and similar substances absorb water readily, which can damage the board.