Prime old plastered walls - Tile Advice

[NewbieTiler99]

Evening all,

Quick question on priming old walls. Original plaster is in reasonable condition, some minor imperfections etc.

Do i need to prime the walls before tilling old plaster?

Thanks!

 

[Time's Ran Out]

What’s on the surface of the plaster - wallpaper , emulsion , paint glue size.....
Will only take 22kg of total weight.

 

[NewbieTiler99]

What’s on the surface of the plaster - wallpaper , emulsion , paint glue size.....
Will only take 22kg of total weight.

Small downstairs loo. Biggest wall is 1940 x 1220mm Looks like very old paint, possibly from the 1950s. It's not flaky or damaged however. I stripped old wallpaper off and sugar soaped the walls.

 

[Waluigi]

Yes you should prime plaster. Usually an acrylic primer. The maximum you can hang off a plastered wall is 20kg PSM Which includes Adhesive and Grout.

Remove paint first.

 

[widler]

Knock it off and re board, seriously, for the size of it, it will work out better and no more expensive than bodgeing it