Peeling Flaking paint Every year

18 Nov 2009
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United Kingdom

Was hoping someone could tell me what i'm doing wrong. Out side the front of my property round the boundry at the front there is a small height wall with sandstone coping stones on top. These used to have the wrought iron railing fixed to them at one time pre war.

Every year i go out i have to scrape the paint off because after about 6 months it just begins to crack and flake and basically after the year's up looks like its never been painted in 10's of years not just 12 months. I have been using Sandex paint, is this paint acceptable or is it more of an issue with the coping's?

Now last year i use Exterior Masonry Stabilising Solution from Wickes but again the same happened again :(

Now i'm looking at tackling it again this weekend so was hoping for some advise maybe something else i should be doing or a better paint to try.

Thanks in advance for any help
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Flaking and peeling is usually due to moisture issues. Sandstone is very porous and once wet holds moisture for a long time so ensure the coping stones are fully dried out before painting.
It might be wise to seal the stone with something like this:
It binds the chalky/powdery surface while allowing any trapped moisture to escape and provides a good base for your masonry paint to be applied to.
There shouldn't be any problems using Sandtex, as it too is breathable.

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