L
lucysummers
Just had 45m2 of black strata limestone laid, we cleaned it last week and allowed it to dry and then sealed it the next day with Thompsons clear limestone sealer, it dried for about 6 hours and then came the rain. I have now a patio covered with what looks like white salt marks and it looks horrendous. I called back the guy who laid it, who brought round some patio cleaner that contained acid, we tested a couple of the slabs, seemed ok so proceeded to do the top end of the patio (where the shed shall be laid) it has now taken the colour out of the slabs and left them greyish white. What should I do next?