Painting

Before painting think about these 3 things:

• Does it need to look good?
• Does it need to last long?
• Are you bothered about having to keep retouching it to keep it maintained?

Answering these will help you decide which panels and which coating is best for you. For example; if you need a fine finish then factory sanded panels are your answer.

Or, if you opt for un-sanded panels but still need great results, take a wire brush to it and remove loose wafers and resin deposits. From here, add a coat of primer and top coating with a spirit base (as directed by the manufacturers of course). JOSB done.

Alternatively if it doesn't matter how it looks, you can go for water-based products. These will give you a slight swelling of the surface wafers and streaking and outlining of the chip within the board: Remember, we can't guarantee other manufacturer's product claims so whatever product you put on your OSB, do a small test before you cover the whole thing.

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Either way, always follow the manufacturer's guidelines.