Painting new breeze block x need to “mist” it first?
Discussion
Son wants to paint the walls of a brand new garage with white emulsion. The walls are made of breeze block, or those large grey square blocks with a rough surface, whatever they are Called.
Would it be best if he uses a watered down paint first as you would on new plaster?
Cheers in advance.
Would it be best if he uses a watered down paint first as you would on new plaster?
Cheers in advance.
Eddieslofart said:
Personally, a bit of Unibond first to seal it. Breeze/Celcon is like a sponge.
Unibond has no place whatsoever in decorating, save for sealing a wall prior to wallpapering ( and even then it’s not necessary) !The whole point of a thinned 1st coat of paint is so it soaks into the substrate to promote adhesion.
Unibond (or any PVA) is not needed.
Having recently spent hours and hours doing this with a roller and brush I would seriously consider investing in a paint sprayer to try and get into the holes in the block and speed up the process. I have ended up using about 60L of Dulux emulsion to get a good solid white finish.
I did a mist coat 1st then a further 2-3 to get it nice and white. To be fair, I'm sure at times I must have almost been using paint as filler on the holes to cover it, hence suggestion of trying a sprayer!
Screwfix do a long pile roller in a set for around a tenner
I did a mist coat 1st then a further 2-3 to get it nice and white. To be fair, I'm sure at times I must have almost been using paint as filler on the holes to cover it, hence suggestion of trying a sprayer!
Screwfix do a long pile roller in a set for around a tenner
MellowshipSlinky said:
Unibond has no place whatsoever in decorating, save for sealing a wall prior to wallpapering ( and even then it’s not necessary) !
The whole point of a thinned 1st coat of paint is so it soaks into the substrate to promote adhesion.
Unibond (or any PVA) is not needed.
Bob.The whole point of a thinned 1st coat of paint is so it soaks into the substrate to promote adhesion.
Unibond (or any PVA) is not needed.
227bhp said:
No you don't, think about it:
If the surface is smooth and shiny it needs something to help paint bond to it. Something sticky or thin that will soak through the shiny surface and grip.
If it's as rough as f
k it doesn't - it'll hang on until Hell freezes over.
Are you ok mate?If the surface is smooth and shiny it needs something to help paint bond to it. Something sticky or thin that will soak through the shiny surface and grip.
If it's as rough as f
k it doesn't - it'll hang on until Hell freezes over.Gassing Station | Homes, Gardens and DIY | Top of Page | What's New | My Stuff