Priming walls

[Jimmy Doc]

Hi all, Im in the middle of doin my wet room and was priming shower Walls (sand/cement and ply) before tanking, I noticed that there was a skin on the sand/cement Wall when it dried out, primer came with tanking kit, not PVA, is this normal, just want to know before I apply paste, thanks

 

[Gazzer]

Paste ????
What primer is it and has it been diluted ?

 

[merlecollins]

What tanking kit do you have?

 

[Jimmy Doc]

No wasn't diluted, tanking kit is a paste and you tape all corner's, what should I do

 

[Gazzer]

You really need to answer questions so we can help.
What tanking kit is it ?

 

[merlecollins]

You really need to answer questions so we can help.
What tanking kit is it ?

Manufacturer?

 

[Jimmy Doc]

Tanking kit is from bondmaster

 

[Gazzer]

Sounds like you have applied it neat and yes it will "skin" It should have been diluted either 1.1 or even 1.3.
Have you read the instructions ?

 

[Jimmy Doc]

Yes applied it neat, my mistake, what should I do now?

 

[Gazzer]

Is it a rendered wall ?? Rub it off with sandpaper or a rubbing block then prime again at 3.1 dilution.

 

[Jimmy Doc]

Yes it's a rendered wall, done the ply also but it seems ok or should I sand this to

 

[Gazzer]

I would as if it has skinned then al you will be fixing to is that skin.

 

[Jimmy Doc]

Do I have to bring it back to surface or just ruff it up, just use coarse sand paper?

 

[Gazzer]

Just remove any evidence of the primer skinnning over.

 

[DHTiling]

Hang on before you do, what does the instructions say about use.. some do get applied neat..?