Paint not adhering to walls

keystone

jicms wrote: »

Sorry if I've caused confused, I mentioned painting over plaster only because that was the closest topic relevant to mine but yes I have painted Dulux Once matt over lining paper previously painted with silk paint. So this must be the problem.

It is indeed and if you've used matt over silk the firstly it won't adhere to it as you've already found out and secondly when it does cure it will most likely craze too.

It rubbed off after only a few days! Didn't intentionally attempt this, it happened when wiping down the splashbacks.

Sorry but you are going to have to take it off, and either abrade the silk or give it the once over with spirit based undercoat or a soft sheen finish or a coat of 123. Then you can repaint with your matt.

I can't even bear to think about scrubbing it all down, resanding, painting two coats etc. This is in our kitchen/diner and has taken ages. Is there then hope it might settle down if left or even given another coat?

Sorry but you are going to have to do as above. Bite the bullet!

What is carp paint?!

Its my way of saying c r a p without offending or invoking the forum censor.

Cheers

Leif

keystone wrote: »

or a coat of 123. Then you can repaint with your matt.

Note: That is Zinsser 123.

I would be tempted to use Zinsser 123, as it is not that hard to apply one coat, and it does provide a good surface for paint, followed by 2 coats of matt paint. I've never used 123, so I don't know if you brush it on, or roller it.

How are you applying your paint? I would use a microfibre roller sleeve, screwfix one's are cheap and said to be decent.

jicms

Leif wrote: »

Note: That is Zinsser 123.

I would be tempted to use Zinsser 123, as it is not that hard to apply one coat, and it does provide a good surface for paint, followed by 2 coats of matt paint. I've never used 123, so I don't know if you brush it on, or roller it.

How are you applying your paint? I would use a microfibre roller sleeve, screwfix one's are cheap and said to be decent.

I would still have to try and remove all the Dulux paint first though? I've found Zinsser Bin or Zinsser Watertight on the B&Q website.


With a standard Homebase medium pile roller.

keystone

jicms wrote: »

I would still have to try and remove all the Dulux paint first though?

Yes you have to get the silk prepped to a condition where other paint will stick to it.

I've found Zinsser Bin or Zinsser Watertight on the B&Q website.

BIN is shellac based and would also be fine. It dries in 15 mins. Use meths to clean your implements. No NOT Watertite. Watertite is Waterproofing Paint not a sealer/ primer. I said 123 - thats the waterbased Zinsser Option.

Cheers

jicms

keystone wrote: »

Yes you have to get the silk prepped to a condition where other paint will stick to it.

BIN is shellac based and would also be fine. It dries in 15 mins. Use meths to clean your implements. No NOT Watertite. Watertite is Waterproofing Paint not a sealer/ primer. I said 123 - thats the waterbased Zinsser Option.

Cheers

Thanks very much. I'll see if I can find the 123 version as I'd prefer water-based.

blue_monkey_2

We had terrible problems in the house we are in, all the paint lifted from the walls when we tried to put it on so we used this: http://www.homebase.co.uk/webapp/wcs/stores/servlet/ProductDisplay?langId=110&storeId=10151&partNumber=098237 ended up using it in every room in the end, the walls were really old and no matter what prep we did, the paint would not stick.

This: http://www.homebase.co.uk/webapp/wcs/stores/servlet/ProductDisplay?langId=110&storeId=10151&partNumber=385967 is cheaper than the BIN - we used some of this on the walls that had dark paint on them.

Leif

jicms wrote: »

I would still have to try and remove all the Dulux paint first though? I've found Zinsser Bin or Zinsser Watertight on the B&Q website.


With a standard Homebase medium pile roller.

I think Keystone indicated that you have to remove the Dulux paint because it has not bound to the paint beneath. So there is no point painting anything on it.

You can get 123 from companies such as Brewers and Cane Adam. They can usually get it in stock quickly. Apply it over the silk paint.

I suspect the Homebase sleeve is not good. Microfibre sleeves were recommended to me by pros.

jicms

blue_monkey wrote: »

We had terrible problems in the house we are in, all the paint lifted from the walls when we tried to put it on so we used this: http://www.homebase.co.uk/webapp/wcs/stores/servlet/ProductDisplay?langId=110&storeId=10151&partNumber=098237 ended up using it in every room in the end, the walls were really old and no matter what prep we did, the paint would not stick.

Problem Walls - brilliant name! How did you prepare the walls before using it?

blue_monkey_2

jicms wrote: »

Problem Walls - brilliant name! How did you prepare the walls before using it?

We started by stripping them down (chipwood - urgh!!) and rubbing them down - but this actually made things worse for some reason so we just stripped the walls, washed them down and fillered any holes and then put the Problem Walls on with a roller, it was like a thin glue and dried quite quickly and, if I recall, by the time we got from one side to the other we could go around with paint. It did mean and extra coat but it goes on quite easily.

The paint them went on perfectly. Would not hesitate in using it again.

We had a whole 3 bed house to do - all of the upstairs and landing was done in 5 days so we could get in ASAP - one room, it'll be a doddle, LOL.

jicms

It might be worth me testing this on the wall to see if it seals them enough to just apply another coat of Dulux