Resin backed stone - adhesive

[IHB]

Is there a good adhesive to use on resin backed stone or is it best to score/grind the resin mesh?

 

[White Room]

If it was a resin tile a 2 part addy, not sure on resin backed stone, seems a right old mixture.

 

[IHB]

It's Marble with a mesh stuck to the back with some type of glue/resin. I believe it's done to reinforce the veins in the tiles. Most seem strong enough to hold without the mesh but guess it helps handling & transport.

 

[White Room]

What size tiles are they....

 

[Lee@emctiles]

2 part or TileMaster Ulitmate would be my weapons of choice

 

[Ian]

Is it a porcelanosa tile by any chance?

 

[J Sid]

Came across this about 5 years ago. Marble with resin backed webbing. At the time no adhesive suppliers would guarantee a way to do it. So scratch the back and buttered with adhesive plus add mix. Did work, had no come backs.

 

[IHB]

Large tiles are 600x400. Mosaics are 50x50.

Not porcelanosa Bri

I could grind the back off the large tiles but the mosaics are a worry. As well as the resin mesh they are mounted on a second mesh that seems to use a water soluble glue rather than the (probably) epoxy based backing. So the mosaics have both - you wonder if any of the tile will be in contact with the adhesive!

 

[Concrete guy]

You need to ask the stone supplier for their specification, not the adhesive manufacturers.

This is normal on softer marbles, Crema Marfil, Rojo Alicante, most of the Emperadors etc and is, as already suggested, to help keep the tile/slab intact during transport and handling.

The manufacturer of the stone will be able to supply you with a spec for their choice of resin mesh and details of which adhesives are suitable or not.

 

[IHB]

Supplier was happy with Weber but Weber list resin backed as not suitable. Guess there are different types of resins & Weber might just be covering themselves?

 

[Concrete guy]

Quite frankly, I fitted this stuff for years with Ardex X7 and Ardion 90 admix and never once had an issue. This was before there were specialist stone adhesives like S20W.

I understand the need to comply with BS and various other regulations but sometimes I wonder if it's all gone a little bit too far and we're all falling over ourselves trying to comply with every possible minute detail rather than just getting on with it with a product that's worked for decades.

 

[simon75]

...the mosaics are a worry. As well as the resin mesh they are mounted on a second mesh that seems to use a water soluble glue rather than the (probably) epoxy based backing. So the mosaics have both - you wonder if any of the tile will be in contact with the adhesive!

British Standards say at least 75% of the back of mosaic must be able to come into contact with the adhesive. If there is so much mesh on there that it prevents this, then walk away and refuse to fix them. Deanotile had the same issue with some Porcelanosa stone mosaic a while back, and they eventually refunded the customer because he refused to fix them because they could not be fixed in line with British Standards. If you fix them, and the installation fails, and you haven't complied with BS then it will be down to you to foot the bill (and your insurance probably won't pay out either).

 

[IHB]

So which of the Ardex adhesives would you think would be best with the Mosaics (Wall & floor).

All the stone ones look like rapid set & I'd prefer slower, at least for the walls.

X7, X7G and X77 all look similar to me.

 

[Concrete guy]

Personally I'd go with X7W unless it's a darkstone/grout combination.

It's the modern equivalent of X7 Ardion 90.

 

[IHB]

Do you mean X77W ? I thought X7W is just X7 White.