Hi
Not sure which forum was better for this question, building or decorating.. apologies if this is the wrong choice
Basically am restoring sandstone window sills/surrounds.
They seem to have been overpainted several times in the past, the paint now is blistering and there are also large areas which sound hollow, so i think some sort of filler has been used.
I am stripping the paint off, the loose stuff at least, and leaving the paint which doesn't seem to want to come off. The loose filler is also being removed. Essentially taking it back to stone as much as possible. Is this approach sensible, or is it better just to overpaint whats there already? Am using a heatgun and scraper.
Do I need to re-seal the sandstone before painting it (am guessing so?) and also is it OK to "seal over" the paint which I cannot remove?
Within the gaps between the blocks (I assume they do not just rest atop of each other?!) some of the filler material was wet. It looked like plaster or car body filler. Doesn't seem right? See second pic, and also green mould type stuff.
Thanks
Mike
Not sure which forum was better for this question, building or decorating.. apologies if this is the wrong choice
Basically am restoring sandstone window sills/surrounds.
They seem to have been overpainted several times in the past, the paint now is blistering and there are also large areas which sound hollow, so i think some sort of filler has been used.
I am stripping the paint off, the loose stuff at least, and leaving the paint which doesn't seem to want to come off. The loose filler is also being removed. Essentially taking it back to stone as much as possible. Is this approach sensible, or is it better just to overpaint whats there already? Am using a heatgun and scraper.
Do I need to re-seal the sandstone before painting it (am guessing so?) and also is it OK to "seal over" the paint which I cannot remove?
Within the gaps between the blocks (I assume they do not just rest atop of each other?!) some of the filler material was wet. It looked like plaster or car body filler. Doesn't seem right? See second pic, and also green mould type stuff.
Thanks
Mike