Sbr primar for bathroom walls help

[Dan Cartwright]

hi iv used jewsons sbr admixture to prim my bathroom walls before I tile them, it says it is a good all round primar, can anyone let me know if this will be ok before I start tiling. I’ve attached a picture of the sbr I have used any help would be grateful thanks

 

[Tile seller]

Oh hell, what an awful job.

 

[Dan Cartwright]

Nightmare, any ideas what the best way is to get this primar off

 

[White Room]

Could try a decorators 75mm filling knife which very flexible and has a very thin blade, probably need to go to a decorating centre rather than a diy depot

 

[PaulDtiler]

Hi mr tile seller
Why wouldn't I prime the walls if I was using ready mix ?

 

[Tile seller]

Most pastes are self priming so its not needed.
Also, the sbr layer will make it harder for the paste to dry out.

 

[Dumbo]

Most pastes are self priming so its not needed.
Also, the sbr layer will make it harder for the paste to dry out.

I know what you're saying I know of some pastes that are self priming ardex d20 I think it is springs to mind but really are you telling me that as you put a paste on the wall it instantly seals the wall to stop any moisture in the paste prematurely drying into the background .

 

[PaulDtiler]

Adhesive powder or ready mix needs to cure not dry to optimise adhesion.

 

[Qwerty]

Adhesive powder or ready mix needs to cure not dry to optimise adhesion.

Ready mixed (dispersion) adhesive relies on drying to set, not a chemical reaction like cement adhesive

 

[Tile seller]

I'm not suggesting that the pastes seal a porus substrate,rather that they don't necessarily need it sealed.
Pastes are fairly slow to dry and a porus substrate to help aid the process would seem to me, to be a good thing.

 

[Flintstone]

Some firey debates on here tonight