Wallpaper Size

[dsvd]

Wallpaper Size
The modern way is to dilute wallpaper ahesive with water
and pre-coat to seal wall before pasting wallpaer.

What is the mix (parts)?
How long to dry?

[heathfield]

It's not a new idea. This has been done to seal plaster walls since wallpaper was invented. What it does is stop the wall from absorbing the paste on the paper, which leads to dry areas where the wall paper hasn't stuck.
For years, I've papered bare walls by first pasting the paper, then, while it's soaking, I paste the wall, then hang the paper. Never had a problem by doing this. Use the mix recommended on the paste pack for the paper to be used.
Drying time will depend on various factors, like room temperature, absorbency of the wall and paper surface, (vinyl, type of ink for pattern), etc.
With lining paper, I can usually use emulsion paint about a day-and-a-half to two days after putting it up.

[theshedman]

Hi, usually all you need to do is read the back of the packet and it tells you the different type of mix for different types of wall paper. It also gives you the mix for size. Personally I would always size the walls first and allow them to dry. When you come to papering, the size will allow the paper to be moved about to get into place. If you size the wall as you go you may end up getting paste all over the papering brush and in turn get it on the paper. Not all papers can be wiped to get paste off.

[tezestwing]

Hi as far as size is concerned you only need to coat new plaster then let it dry.
If you are removing old paper then sizing has already been done so follow mix as it says on the packet hth Tez

[theshedman]

When I remove the old paper I always wash the walls to make sure all bits are off, fill in any cracks and then rub down so that they are nice and smooth. I find it's better to resize the walls then as over the years the paper has been on the walls they become porous again and dry out the new wallpaper too quickly and my preparations remove a lot of the old size.