Paint - decorating

[User]

 

[Joey Shabadoo]

You can put oil-based paint on top of water-based but not vice-versa unless you rub down the oil paint and add a primer. Acrylic paint is water-based paint.

 

[slowmotion]

Vinyl water-based paint will bubble up under heat. I've taken it off plaster walls using a steam wallpaper stripper and a stripping knife. It's extremely tedious but it can be done.

 

[screenman]

I am redoing the whole house in WB paint, it is harder by far to apply as well as oil based but I like the way it stays white longer.

Preparation for me has always been important, I use Johnson's an primer with the Johnson's Aqua Gloss.

Painting over oil or water based they both are best prepared properly.

 

[Joey Shabadoo]

[QUOTE 5171958, member: 9609"]What sort of primer ?

and how do you test for oil based ? just heat it up and see if it starts to melt ? (I'm thinking if its water based it wont melt)?[/QUOTE]

Any primer will do - you're just providing a key for the paint to adhere to.

Johnstone's Aqua is a hybrid paint - not pure water based as it has a touch of oil in there. Water based leaves terrible brush marks but stays white, Aqua doesn't leave the same brush marks but it stays white longer than oil-based. Personally I always found the Aqua to be a bit gloopy and sticky in use but trade painters liked it.

 

[screenman]

I roll the Aqua on with a 6 inch roller then brush out with a wet brush.

 

[Joey Shabadoo]

Water based feels quite dry when you drag your thumb over it, not as "slick" as oil based.

 

[Accy cyclist]

I had my flat painted throughout before i moved in, in October. I had the kitchen and bathrooms done with silk vinyl and the rest with matt. The matt's been ok,but the vinyl started to crack and flake after a month. The bathroom is the worst. I keep rubbing the flaked pint off and repainting over the bits,but it only lasts a week or so then starts to come off again. The outside facing wall is where most of the damage is. I've tried everything to remedy it but nothing works. Last week it'd held up for about 10 days. I left the window open for 3 hours on a very cold, dry day,while i went out. When i came back the paint was cracking badly. I'm guessing now that it's the cold air causing it to crack. Any ideas or suggestions would be appreciated,but not leaving the radiator on all day, as that'll cost more than repainting the bathroom.

 

[User6179]

[QUOTE 5171946, member: 9609"]Any rules regarding applying water based paints overtop of oil based paints (or visavera) ?

And is Acrylic paint the same as any other water based paint, or is there any problems applying that over old oil based stuff ?[/QUOTE]

I once bought some Zinsser bin to paint a wooden panelled ceiling, I did the whole ceiling before I noticed I had used a tin of gloss that was sitting next to the Zinsser bin in the cupboard, 2 days later I emulsioned the whole ceiling with a roller, that was about 3 years ago and the ceiling is fine, If it was skirtings or door frames it would probably come off but on a ceiling was fine.
You can only one coat it as if you try a second it just takes the first back off.

 

[Accy cyclist]

I saw someone painting the outside walls of their house yesterday. It must've only been about 7C. It was also a damp day. I don't think that paintwork will last very long.

 

[User6179]

I saw someone painting the outside walls of their house yesterday. It must've only been about 7C. It was also a damp day. I don't think that paintwork will last very long.

I think you can get masonry paint that you can use even if the walls are wet.

 

[Accy cyclist]

I think you can get masonry paint that you can use even if the walls are wet.

That could be the masonry paint that's guaranteed for 15 years,but only lasts 5 to 7 years.

 

[Levo-Lon]

I am redoing the whole house in WB paint, it is harder by far to apply as well as oil based but I like the way it stays white longer.

Preparation for me has always been important, I use Johnson's an primer with the Johnson's Aqua Gloss.

Painting over oil or water based they both are best prepared properly.

Not to mention the Quick dry time and virtually no stink