Tiling on mapei renovation screed - Tile Advice

[Hamlet 79]

Hello everyone
I am new to this forum and need some advise. What flexible adhesive is best to tile on mapei renovation screed?

 

[LM]

Hello everyone
I am new to this forum and need some advise. What flexible adhesive is best to tile on mapei renovation screed?

Preferably a C2S1 but a C2 would be fine. What type of tiles are going down?

 

[Hamlet 79]

Would be travertine tiles..wunda insulation boards,16mm pipes, and then tiles. Tested with ultratile Proflex s2 came off, then did primer mapei eco prim grip, Proflex s2 on top ... same. Thinking maybe need switching to different brands, avoiding expensive mapei adhesives (flexible) ?

 

[Dumbo]

Would be travertine tiles..wunda insulation boards,16mm pipes, and then tiles. Tested with ultratile Proflex s2 came off, then did primer mapei eco prim grip, Proflex s2 on top ... same. Thinking maybe need switching to different brands, avoiding expensive mapei adhesives (flexible) ?

Ate you sure you didn't put too much water in your levelling mix , so you have a laitence on top which is separatingfrom the levelling and not the adhesive

 

[Hamlet 79]

Ate you sure you didn't put too much water in your levelling mix , so you have a laitence on top which is separatingfrom the levelling and not the adhesive

Yes I'm sure 4l of water per bag as manufacturer states.

 

[Dumbo]

Yes I'm sure 4l of water per bag as manufacturer states.

Do you have a picture of the back of your rest tile

 

[Hamlet 79]

Yes I'm sure 4l of water per bag as manufacturer states.

Do you have a picture of the back of your rest tile

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Not tile but efect same with primer and without

 

[Dumbo]

Firstly I don't think allowed enough time for the adhesive to develop strength as shown by the adhesive separating and I wouldn't of use that primer in that situation , I would of used primer g . I would fancy that is just going sit on top of the levelling and not really bond into the surface , I'm not going to check but its really meant for non porous surfaces
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Also I would say that I a hard test as the if you multiply force you've applied to the tape to pull it up to a square metre It would be collosall

 

[Dumbo]

Just checked they it's ok , but they do say well cured , typically for adhesive manufacturers they are ambiguous are their instructions but to be honest I still wouldn't use it because I think it will just peel like a lot of brush on tanking products will

 

[Hamlet 79]

Thank you for advice..today I'm going to prime it with mapei G and see how it goes..

 

[Dumbo]

Thank you for advice..today I'm going to prime it with mapei G and see how it goes..

Your test is still unfair as to amount of force you are applying to a small area ,

 

[Hamlet 79]

Your test is still unfair as to amount of force you are applying to a small area ,

I did similar test with same adhesive just directly on wunda insulation panel...you need a hammer to take it off...solid as a rock. It looks like this ren screed so smooth or greasy that didnt stick, not penetrating into surface just sits on it. Better I avoided it doing

 

[Bill]

The eco prime grip is supposed to go onto the top of the wundafloor boards prior to tiling.

You can stick the underside of the wundaboards down to the levelling compound with any c2 adhesive.

Are you a tiler or a DIYer, if you do not mind me asking as Wundafloor will only guarntee the floor using their tested method which is using Mapei adhesives and primers.

I have just tiled one before Xmas and it was a total **** up with the people who laid it.

One more point - you will need a crack mat on top of the wunda boards too as it is Travertine that you are fixing.

Good job I know what I am doing!!!

 

[Dumbo]

The eco prime grip is supposed to go onto the top of the wundafloor boards prior to tiling.

You can stick the underside of the wundaboards down to the levelling compound with any c2 adhesive.

Are you a tiler or a DIYer, if you do not mind me asking as Wundafloor will only guarntee the floor using their tested method which is using Mapei adhesives and primers.

I have just tiled one before Xmas and it was a total **** up with the people who laid it.

One more point - you will need a crack mat on top of the wunda boards too as it is Travertine that you are fixing.

Good job I know what I am doing!!!

See now I kept away from wundaboard advice as I have no experience in it