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Answered Tuesday 10 January 2012 |
We have a concrete driveway which has been colour concrete sprayed to a dark brown finish.Since it has been finished, the concrete continually goes white. I have had 3 firms re-do the driveway but to no avail. Last time I contacted the makers of the sealer and did everything exactly to their instructions. Same again!!! I have since had another chap re-do the driveway but the same has happened again. Any suggestions? I saw you do a driveway, possibly at Gronulla, using paint and sealer. Could you advise me on the brand you use?
It sounds like the salts are coming out of the ground and concrete and coming through to the surface so sealer will do nothing. Google removing efflorescence