Some years ago I painted several internal walls with a B&Q matt emulsion containing Teflon (might have been called the "Lifestyles" range) to get a washable surface. It was a good enough paint, and fit for purpose. B&Q have since discontinued the range.
About 5 months ago I over-painted some of these walls with Crown Trade Matt emulsion (2 coats). I recently had to wash a smear off one of the walls, and found the paint washing off along with the smear! Yes, I had washed down the original paint surface with sugar soap solution and rinsed. Even a light wipe-over is enough to take the 'new' paint right off, leaving the teflon-containing surface below, which no amount of washing will remove! oh dear - I suppose that's what it was designed to do!
Is it going to be possible to get a decent finish over the 'teflon paint', would you say? I am resigned to having to wash off as much as I can of the last two coats and get back to the original 'teflon paint'. Am I going to need to give it a light sanding to key it perhaps? Or is there some other surface prep I should do?
Thanks for any tips
In passing, I wonder if this problem is why B&Q discontinued it: oh well.
About 5 months ago I over-painted some of these walls with Crown Trade Matt emulsion (2 coats). I recently had to wash a smear off one of the walls, and found the paint washing off along with the smear! Yes, I had washed down the original paint surface with sugar soap solution and rinsed. Even a light wipe-over is enough to take the 'new' paint right off, leaving the teflon-containing surface below, which no amount of washing will remove! oh dear - I suppose that's what it was designed to do!
Is it going to be possible to get a decent finish over the 'teflon paint', would you say? I am resigned to having to wash off as much as I can of the last two coats and get back to the original 'teflon paint'. Am I going to need to give it a light sanding to key it perhaps? Or is there some other surface prep I should do?
Thanks for any tips
In passing, I wonder if this problem is why B&Q discontinued it: oh well.