Hello All,
A week ago I painted a room in our house, which was previously painted, with light green silk emulsion paint. I washed the walls first with a very mild detergent solution. The old paint was fine, no damage or anything.
The first coat went on fine, but then when the second coat went on it started to crack - like the paint on old oil paintings, and over the next few days it got really bad.
So I left it for a few days to dry out, then put quite a thick third coat on, the same thing happened - not new cracks - just the same ones showing through. It looked like a muddy field when the baked by the sun.
So now, I sanded down the worst areas, not to the bare walls, just enough to take the tops of the cracks (its very tough stuff, I doubt I could get down the walls if I tried), and painted again with a one coat quality thick stuff paint. Guess what, the cracks started to come through again - its not that you can see their shape - they actually seem to pull the new coat apart and you can see the original colour. Its like painting on wax.
Apart from the first two coats, I am now only painting in little segments to see what works, so my walls look like a patchwork quilt.
Does anyone have any suggestions as to how to over come this. I dont really want to have to put a quarter of an inch of paint on it the get it sorted.
Thanks in advance. Liam