Wallpapering question

On new plaster: seal it with a thinnedcoat of emulsion (about 20-30% water - depends how "thick" your emulsion is) leave to dry apply anaglypta with heavy duty wall paper paste leave to dry one or two coats of emulsion, to cover, over anaglypta

I'd just use thinned wallpaper paste. "size" is there to stop fresh filler/plaster from sucking all the water out of the paste thus making the paper stick to the wall quickly without giving you much chance to move it around to match patterns, edges, etc.

afterwards.

emulsion

Was wondering that as well. Thick coats of neat emulsion paint will tend to crack as the water evaporates causing the paint film to want to shrink.

It was the 'No Nonsense'. I don't know what 'highly filled emulsion paints' is supposed to mean. It goes on to say that filler applied externally must be painted with alkyd resin paint once cured. I am not convinced this would be good for wallpapering over.

Where it is filler (rather than plaster) are you saying it is a free choice whether to pre-coat with emulsion or adhesive? I could do either.

Ones that have a lot of the pigment/base in them. More likely to be the "trade" type of emulsion paint than the "retail" coloured milk you get in the sheds. A skilled painter/decorator will have the experience to know how much a trade paint can be watered down to cover what was there before in minimum number coats (preferably one).

You're putting emulsioned anaglypta up outside? The alkyd resin paint is to protect the non-weather proof filler from the weather...

same paint, different tins?

If the filler is porous I would first use a water/pva mix, say 2 parts water to 1 part PVA and let it dry. Then I would size the wall and let it dry, then wallpaper.

High filler emulsion paints are not as flexible as ordinary paint. They are designed to paint over imperfect surfaces and smooth them out. Why would you buy an embossed paper and then use a filler emulsion to obliterate the pattern you have just put up?

Anyway, the anaglypta paper is more flexible than the filler emulsion once it's dried, so it's hardly surprising if the emulsion tends to crack and craze.

HTH

I won't now. I just didn't know what 'highly filled' meant.

If you refer to the start of the thread, I was referring to what went under the anaglypta (size, paste or emulsion) not what to paint it over with.

Yes, I know you said "the package" has that warning. But you should explain which package. I thought you meant the anaglypta package.

I could have made that clearer but I thought the whole context was preparation before the stage of wallpapering.

The followup after they've got the results from a paint analyst will be interesting.

IME there is a difference between Dulux trade vinyl matt from a Dulux decorator centre and Dulux vinyl matt from a shed. The shed stuff is thinner and doesn't cover so well...

Which product said that? It seems to be a form of words used as a disclaimer on a range of products

Which product said that? It seems to be a form of words used as a disclaimer on a range of products

Even if it's filler I'd still seal it with some watered down emulsion. Basically all that's doing is stopping the filler or plaster sucking all of the moisture from the adhesive before it's had time to "set", plus it allows time for the wall paper (or anaglypta) to be slid about a bit in order to get it into the right position.

Good, thanks. That was my preferred option for ease of application.

In that case, you may be worrying unnecessarily. The anaglypta is designed to cover over any imperfections underneath it. :)

Thanks. I have now decided upon a coat (maybe two coats) of diluted emulsion on the filler in the hope this provides suitable adhesion to paste the anaglypta.

I think that you're overthinking it. Just paste the wall and the paper and you'll be ok.