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Cleaning calcium Deposits Off Bluestone
Posted on 4/23/24 at 8:40 pm
Posted on 4/23/24 at 8:40 pm
I had some calcium leach out of the mortar on my brick steps, on to my blue stone sidewalk. The calcium hardened on to the top of the bluestone and I’m not really sure how to get it off without damaging the bluestone. Has anyone ever dealt with this before?
Posted on 4/24/24 at 12:48 am to wryder1
That is called efflorescence. Usually caused by too much moisture in the substrate. The water brings it to the surface and then evaporates, leaving behind the calcium or limestone residue. 50/50 white vinegar and water will remove it. May need to scrub with a soft brush.
Posted on 4/24/24 at 9:15 pm to 9rocket
Thanks for the advice. Will this hurt the bluestone or surrounding bluestone?
Posted on 4/24/24 at 10:13 pm to wryder1
No. It’s very mild. If you are uncomfortable, it’s always best practice to test in an inconspicuous area first. We do this on all types of natural stone
This post was edited on 4/24/24 at 10:15 pm
Posted on 4/25/24 at 5:17 am to 9rocket
Would you happen to know how to get wax off bluestone as well? One of the candles from a jack-o’-lantern spilled wax on it and left a small stain. I got the wax off the surface but it looks like some got in the pours of the stone. Thanks
Posted on 4/25/24 at 7:26 am to wryder1
I guess I would try a poultice.
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