Reply by TheWoodenOyster

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Posted on Help - it's raining rust on my table saw!

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1335 posts in 2906 days

#1 posted 06-29-2014 07:41 PM

Hey there. I can tell you right off, I seriously doubt that you’ll be able to have the metal removed. That metal is probably what your slab is poured directly on. That is called pan decking and it is what concrete is usually poured on top of, so removing the metal is probably not really an option. In other words, it is structural.

That said, you could try the epoxy floor, but that sure is a lot of work unless you want to do it anyway.

This is what I would do – Get an angle grinder and put on some flap discs (sanding discs) and go around and sand all of the rusty spots and bubbly spots that look like they will rust. Get them down to bare metal and then spray them with cold galvanizing spraypaint. This spray is basically an after the fact galvanizing operation used on things like outdoor welds that would rust if not protected. Typically, the moisture is coming from the painted side, but in your case it sounds like it might be coming from above. So the paint might not work, but either way it is worth a shot and is easier than doing an epoxy floor. It might work, you’ll just have to give it a shot. Good Luck!!!

-- The Wood Is Your Oyster

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