03-13-2009, 01:45 PM
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I picked up some slate tiles from the local home improvement store a few days ago. Started to soak them in a bucket of tap water and a few days later I come back to find that they are covered in what looks like rust particles.
So, I emptied the bucket and it appears that all of the particles are gone, I refilled the bucket with scalding hot water and after a day, it appears that the "rust" particles are coming back.
Anyone else using slate tiles having this problem?
Is it rust due to iron in the rock or is it just dirt that may be present, since I haven't scrubbed them down yet?