WBA over bonding

[des511]

Just wanted to know if its okay to put WBA over bonding patching thats about 7 weeks old.

Thanks

 

[RMK]

I've always found it to be fine mate. Just make sure you tape any cracks in the wall prior to skimming

 

[wilber]

Would of thought pva would be fine,you only want to slow down the suction....

 

[nelly]

Are you skimming the entire wall?

If not then use pva, because wba is gritty and you will have to skim passed the edges of the wba to 'hide it' so to speak, in which case you will be skimming onto parts of the wall that dont have a bonding agent on them.

 

[des511]

It would be the whole wall.

 

[RMK]

to be honest i would pva the lot and skim it. i find it controls the suction a lot better, but each to his own. some prefer wba/thistle bondit. up to you

 

[nelly]

I dont use wba because I cant be arsed waiting 24 hours for it to go off.

Use pva, in 2 coats, half an hour apart.

 

[napper83]

ask oasis he will tell you his speacial pva/wba formula ;D