Pva Versus Primers | Always Use A Primer When Tiling, And Not Pva

[AllurePTS]

Re: P.v.a. Versus Primers......

Hi Prestige ..it's a wall ....well, actually a full boxout for a wall hung toilet .....thinking about it now, I suspect there will be pva on the plaster walls too :mad2:

 

[White Room]

Re: P.v.a. Versus Primers......

What sort of tiles are you putting on to the walls

 

[AllurePTS]

Re: P.v.a. Versus Primers......

White ceramic, about A4 size (you can tell I'm a newbie huh !)

 

[White Room]

Re: P.v.a. Versus Primers......

I would rough it up with some course decoraters paper, Don't know what addy your using, Powdered would be better though

 

[AllurePTS]

Re: P.v.a. Versus Primers......

It's actually a job for a friend ... I'm sure its ready mixed he bought ! .....I'll rub it and scratch it up with a blade first then ...cheers

 

[malcolml]

Re: P.v.a. Versus Primers......

topps adhesive known as toppfix is manufactured by palace chemicals and in the topps training which is done by bal there told they shouldn't reccomend a p v a as a primer BECAUSE IT ISN'T :ninja:

 

[doug boardley]

Re: P.v.a. Versus Primers......

many thanks for posting this thread Dave it gave me the ammo to get site agent to switch to sbr. After years of badgering he remained in the"we've always used pva" mode of thinking but I was able to hit him with all the technical data as to why it was inadequate.Even offered to sit down at his desk and get forum up on his laptop to back myself up!! Oh, and he even agreed to switch to powder addy rather than the green star c**p he'd been wanting to use. Much appreciated mate.
Doug

 

[marcel]

Re: P.v.a. Versus Primers......

thanks for this info dave

 

[user123]

Re: P.v.a. Versus Primers......

Wow. Thanks, Dave.

I just finished a small mosaic on a round breadboard supplied by a customer to be made into a present and primed it with waterproof PVA (Evostick Evobond)), also using same as adhesive - now to be grouted. As yet it seems solid enough with the very small glass pieces, but probably won't risk it anymore...or is the waterproof PVA a different matter to the usual stuff? Hmmm...

Does anyone know if the American Weldbond is any better?

 

[doug boardley]

Re: P.v.a. Versus Primers......

let Dave explain the "ettringite" stuff to you!! but don't plan on going to bed before the wee hours!!!:lol::lol::lol: