Been to do an estimate

[graham31]

am keeping quiet on it!! no I'm not. If it's wrong for plasterers to use pva, and we used to give rendered walls a splash not a soaking of it, why have plasterers not been otherwise educated?

Why indeed.

Still none the wiser tho

 

[medlar]

well thanks for all the replies lads,if the woman happens to ring back at a later date my answer will be NO i dont want the job.
its a matter of pride with me, for all i know she could be bad mouthing me to all her friends right now,calling me a rip off or a cowboy,and thats what damages reputations,its took me a while to build a good reputation and thats the way i want it to stay.:8::8:

 

[doug boardley]

broken link removed

just to play devils advocate (sorry for deviating from your thread medlar) there's no way I condone the use of pva these days, but it's easy to see how and why people get lulled into using it.

 

[medlar]

cheers for the PVA data Doug mate

 

[White Room]

Used pva for plastering for years but not with the tiling due to the excesive moisture

 

[DHTiling]

Good info doug........but doesn't say ..for tiling purposes that it stops ettrignite failure...

We tilers have found that PVA dries to leave a film on the substrate and when a wet adhesive is applied to it , it then becomes live again thus the adhesive is only stuck to this mush or film..

Tiling primers are impregnators which soak back into the substrate thus creating a suitable base to tile too...and also stop the reaction of cement based adhesives with gypsum......

NOw that link you put up ..states that it is a bonding agent but with the pva wording....some companies need to explain more . rthe rthan just say its pva when infact some are bondong agents and not just polyvinyl acetate..( wood glue).....


I am just trying to see why it should still be recommended for plastering.....


p.s. soz medlar for hijacking your thread..

 

[medlar]

Good info doug........but doesn't say ..for tiling purposes that it stops ettrignite failure...

We tilers have found that PVA dries to leave a film on the substrate and when a wet adhesive is applied to it , it then becomes live again thus the adhesive is only stuck to this mush or film..

Tiling primers are impregnators which soak back into the substrate thus creating a suitable base to tile too...and also stop the reaction of cement based adhesives with gypsum......

NOw that link you put up ..states that it is a bonding agent but with the pva wording....some companies need to explain more . rthe rthan just say its pva when infact some are bondong agents and not just polyvinyl acetate..( wood glue).....


I am just trying to see why it should still be recommended for plastering.....


p.s. soz medlar for hijacking your thread..

NO probs dave mate

 

[LM Ceramics]

To be honest i am getting fed up with having to explain the PVA thing to all clients and builders i work for. I always get them telling me that they always use it or the other tiler used it or the shop said to use it.
"It my reputation so humour me and let me use my primer, it will cost no more than any PVA."
i have thought of printing a page off and showing them but i know they wouldnt read it.

same here im sick and tired of explaining why pva should not be used for tiling and builders look at me and are probably thinking this lad doesnt know what hes talking about

£100 for a job like that the tiler must either be desperate or sh*t as for tanking i always offer it and explain the advantages of it but most customers see it as extra money on the bill and try to cut down ive just used it for the first time this week where a customer had already bought it

 

[LM Ceramics]

I am just trying to see why it should still be recommended for plastering.....


i wonder that myself obviously finish cloat plaster is only sticking to the pva just the same as tile adhesive

 

[CJ]

Too many punters out there cannot for the life of them understand the need for the likes of tanking and or uncoupling membranes.

They just DON'T like paying for stuff they cannot see.

Try as you might.........some people will not listen...........or think (as the original post) you are trying to rip them off :smash:

 

[White Room]

The weight of plaster is so minimal to a square m2 compared to tiles, I saw it being used by plasterers back in 1973 and 27 years I've using it and never had problem. The only added weight is a coat of paint

Bathrooms are now a different issue with wet rooms and high powered showers.

Agree with CJ about tanking though

 

[LM Ceramics]

The weight of plaster is so minimal to a square m2 compared to tiles, I saw it being used by plasterers back in 1973 and 27 years I've using it and never had problem. The only added weight is a coat of paint

good point ive only just started doing plastering ive learned something there:santa_cheesy:

 

[Rad2474]

Your absolutley right there CJ if they can't see it don't want to pay for it. Oh and the bloke at the pub knows more about tiling than anyone on here ever will. Don't think i'd have been quite so polite as you Jimmy after been called a rip off merchant for knowing your job.

 

[cornish_crofter]

As I understand it the correct way to use PVA for plastering is to apply the plaster whilst the pva is still tacky.

Could you plasterers confirm or dispute that please?

 

[White Room]

Thats how I use it, Wait for it to get tacky but if the wall/ceiling is dusty I thin the pva down first about 5-1 and seal, Wait for it to dry then apply a fuller coat

 

[Alberta Stone]

I've 2 bathrooms that just came up to tile and they are lath and plaster with an existing tile on the walls up 4 ft.
They are old and rather nasty so the contractor is going to rip them off and I will redo the plaster and retile.
I am going to use mapei primer L as it soaks in nicely.
It looks like the walls were done with a kind of white portland based cement on metal lath and they were then skim coated with gypsum to level it for paint.
I am going to repair the surface with ultraflex3 as there should be only minimal damage to the wall. I do have some mapei vertical filler powder if there is any major damage.

PVA...forget it, I only use that for wood and even then I tend these days to use polyurethane adhesives instead.

Sorry to hear you are running into some nasty bitchs, but you are playing your end well. I am sure some good karma will come your way:santa_cheesy:

 

[beanz]

Too many punters out there cannot for the life of them understand the need for the likes of tanking and or uncoupling membranes.

They just DON'T like paying for stuff they cannot see.

Also, it's stuff that has only been widely used for the last few (be that 10 or 20) years, so they tend to think "we managed well enough before this came out, why should we pay for it now..." I guess that's where the 'sales' comes in.

 

[graham31]

Also, it's stuff that has only been widely used for the last few (be that 10 or 20) years, so they tend to think "we managed well enough before this came out, why should we pay for it now..." I guess that's where the 'sales' comes in.

Maybe thats the problem tho.People are wary of salesmen they know their just out to make money.So when a tiler says they need something they have never heard of before customers think it's the salesmen trying to make money for something thats not needed.

As suggested at the start of this thread maybe some literature typed up about the different materials and handed to the customer to read is the way to go.

Give 2 prices one without one with leave the literature and leave the decision up to them.

Or just walk away if they don't accept your expertise but i'd suspect a lot of jobs may well be lost

 

[medlar]

Your absolutley right there CJ if they can't see it don't want to pay for it. Oh and the bloke at the pub knows more about tiling than anyone on here ever will. Don't think i'd have been quite so polite as you Jimmy after been called a rip off merchant for knowing your job.

Cheers Paul mate,how did ya get on with that job down the teams?

 

[Rad2474]

Went well, no problems.

 

[medlar]

Went well, no problems.

nice to hear Paul mate,well done