rags, if I read your last post correctly, you plan to put a water base latex over the oil base coat on the ladder.

Sorry to say, but you can't paint water base paint (acrylic, latex), over an oil base paint.

You can paint oil base over water base, but not water base over oil base. The water base will not adhere and will eventually peel off.

Hope this project works out for you. You've put a lot of time into it!

A.