On Jul 28, 9:59 am, "desgnr" wrote:
I patched the walls & painted with oil based primer,sealer.
Can i apply the wallpaper to that or do i also have to paint the wall over
the primer & do need to use sizing ?
Will prepasted wallpaper stick for years or should i add wallpaper paste ?
Any suggestions appreciatd.

You definitely want to use sizing, which is quick/easy and will ensure
it comes off when you need to remove it as well as adhere correctly.
I don't think you need a coat of regular paint too though.

I've used pre-pasted product many times with no problems.