I laid a new deck with salt treated lumber. Thought it was dry, it wasnt. Sun has brought out pools of sap which turn white over time but stay sticky. Appreciate any suggestion for removal so I can repaint
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Try mineral spirits or lacquer thinner.
No matter what you use to clean it, the sap that is still IN the wood will continue to work its way out. You will only be cleaning the surface. If you clean it, and paint it, the paint job will fail in this area SOON.
Clean it, then let it stand for a month or two, then clean it again. This process might take quite a while, depending on how much sap is in the wood.
I have two boards on a low boy trailer that have bled sap for about 3 years now, and it is STILL coming out. Because it is a low boy trailer, I just let it go. If it was a deck, or similar structure, I would replace that particular board.James DuHamel
J & M Home Maintenance Service
James
I wonder if a heat gun will help in getting all of the sap out at one time. Of course this assumes that it is in a few spots and not the full length of the board.
Sure sounds like it would be worth a try.
I have to deal with southern yellow pine (treated and non treated) and we get this all the time. After several years you get to a point where you can pretty much tell if a board is gonna bleed sap before ya even use it. We try to save the bleeding boards for someplace hidden.
One thing about it though, termites won't touch a board that's bleeding sap. James DuHamel
J & M Home Maintenance Service