Pre-painting stain coverage - help!

[asterix]

Paint it with white gloss first, then your normal colour in emulsion. I had to do that when my roof leaked last year and stained my bathroom ceiling. Works a treat

Yes, I did the same on a decorating job for a friend. They were going to buy some pricey special stuff. Two years on we are still friends so I guess it worked.

ps Never mind @rich p - what does he know?

 

[screenman]

I was always told emulsion over PVA is a no go. Which is why I use a blocker, proper product for a proper job, no point spoiling the barrel.

 

[dan_bo]

PVA has worked under emulsion for us!

 

[Aperitif]

I always used this stuff. Methylated spirit clean up - so it was a dandy aroma in the place! There is an acrylic version too - 'Bullseye' I think?. All their products I found pretty good. Heavily pigmented, it can be prepped to a fine finish, to receive a top coat. Ideal for MDF too. Disposable brush saves cleaning up too. Beautifully quick-drying.

 

[cyberknight]

You mean theres a stain on the wall, i didnt notice

 

[screenman]

PVA has worked under emulsion for us!

In that case you may have been lucky. The trade tend to give it a nogo, as a painter although cars not houses I can understand why.

 

[snorri]

PVA .

What's PVA?
Just asking, not looking for an argument

 

[Aperitif]

A water-based polymer adhesive. Can arrive in various strengths and formulations but generally, wood glue, paper glue for craft etc, constructors adhesive, a 'primer' for evening out the suction of a substrate blah blah. The magic component!. I used to use it as a carrier for acrylic artists colours, and cover rooms in many thin coats of a 'glaze' to give an amazing density to the colour(s) one used. Interesting stuff, and dries clear usually.

PolyVinylAcetate - I think.

 

[screenman]

What's PVA?
Just asking, not looking for an argument

It would be quicker to use Google. It has many great uses. I would not use it to seal a wall before painting though, but as others have said it has worked for them.

 

[TissoT]

What's PVA?
Just asking, not looking for an argument

Latex primer .... PVA glue watered down !
Used in construction for bonding mainly !

 

[Pro Tour Punditry]

Just use a babywipe

 

[rbreid]

Artists fixative spray. Worked for me when my kids decided that A4 paper was too small to let their artistic talents shine through in their wax crayon work

 

[snorri]

Latex primer .... PVA glue watered down !
Used in construction for bonding mainly !

Thank you tisssot .

 

[TissoT]

Thank you tisssot .

No problem .... Hate the stuff (joiner)

 

[asterix]

It would be quicker to use Google. It has many great uses. I would not use it to seal a wall before painting though, but as others have said it has worked for them.

It's good for stabilising loose plaster work and dusty concrete floors. I use it quite a lot for butt-jointing plasterboard at the moment using a narrow strip of plasterboard to cover the join. It gives a very strong joint indeed. Also stick polystyrene insulation to plasterboard with it, very effectively.

Wonderful stuff! Can't find it in France..