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  1. 1 point
    James

    Sanding before or after acid?

    I think the point we are missing here is removing the finish. Sometimes we are doing multi- applications of a strong Alki. Deciding when to stop the alki action is another matter. Has the Finish been removed? Do we need to to do it again? Do we want to stop the action of the Alki? Do we already know we have to sand? Is there allot of organic Stains, Rust stains ect..? Is there a need to Bleach the wood after stripping? Stopping the action of the Stripper and Removing Tannin Stains and Brightening the wood are different actions although many or most times a simple neutralization works after a clean or mild strip of the wood.I do know the less moisture that is in the wood the better the Acid works for removing Tannins and Stains. When using OxAcid a problem happens when it doesn't totally dissolve and it leaves a Salty looking resydue on your woodfriendmembers deck. Or Rod has been on your DEck working out to the Oldy's If I keep on writing do you think I'll give Kev a Headache because I have one ? LOL
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