Retro fit ufh & Hydrogen gas causes floor failure.

[Ajax123]

Typical companies releasing products onto market without proper research or testing just to make money and leaving end user to clear up the mess .

???? Who done that then

 

[Ajax123]

there's very little that they claim that can't do.
use it to prime resin backed stone, painted epoxy floors, gypsum
its a wonder product

I'm going to refrain from comment in respect of my opinion of Mapei

 

[Old Mod]

In the case of using the Isolastic liquid, does it bind the alkali element of the Portland Alan, how does it work?
Mapei also state that latex plus is a no no,
reading tech sheets there's little or no difference in the two products, but I'm sure there must be something.
Would just like to understand how this can be prevented.

 

[Dan]

You're all in the arms here there should be nobody in here related to an adhesive firm. Or any other firm that makes money out of the tilers for that matter.

 

[Ajax123]

In the case of using the Isolastic liquid, does it bind the alkali element of the Portland Alan, how does it work?
Mapei also state that latex plus is a no no,
reading tech sheets there's little or no difference in the two products, but I'm sure there must be something.
Would just like to understand how this can be prevented.

Not sure it binds the alkali element but some latex compounds have resistance to alkaline conditions. Styrene butadiene is used to make latex concretes which have high flexural strength. I don't know what the mapei stuff is made from so not sure. I know it's a type of latex so maybe it's the butaduene form.

 

[Old Mod]

Not sure it binds the alkali element but some latex compounds have resistance to alkaline conditions. Styrene butadiene is used to make latex concretes which have high flexural strength. I don't know what the mapei stuff is made from so not sure. I know it's a type of latex so maybe it's the butaduene form.

Thanks Alan.
I will call Mapei again, but don't hold out much hope of finding out the why's and the wherefore'a, I'm sure I'll just be told 'it just does!' Haha
Thanks again

 

[Ajax123]

Bitumen would work yes but a nightmare to apply. I think mma would work as well but would be fearfully expensive and fiddly to work with. Never tried SBR but as that can suffer from alkali burn I suspect that won't work. Acrylic doesn't work. PVA works in large quantities but can take an age to dry and set. Epoxy would probably work but again would be fiddly and costly. A polythene membrane is best for screeds.

 

[Old Mod]

Bitumen would work yes but a nightmare to apply. I think mma would work as well but would be fearfully expensive and fiddly to work with. Never tried SBR but as that can suffer from alkali burn I suspect that won't work. Acrylic doesn't work. PVA works in large quantities but can take an age to dry and set. Epoxy would probably work but again would be fiddly and costly. A polythene membrane is best for screeds.

Would you have any guess as to why they say prime and grip works?

 

[Old Mod]

You say acrylic doesn't work, and I believe you,
Look at this.

 

[Old Mod]

Tried comparing Isolastic with latex plus and struggled to find a difference here too. PH values almost identical.