Adhesive Question - Tile Advice

[ocall1919]

Hello, looking for some advice on a DCF. I am tiling onto existing tiles with new tiles, porcelain 60 cm x 30 cm.

I intend to use NX standard set powder, which is suitable for porcelain tiles as it is cement-based.

do I need a special adhesive When tiling onto existing tile, if so what brands, thank you.

 

[Dave]

Hello, looking for some advice on a DCF. I am tiling onto existing tiles with new tiles, porcelain 60 cm x 30 cm.

I intend to use NX standard set powder, which is suitable for porcelain tiles as it is cement-based.

do I need a special adhesive When tiling onto existing tile, if so what brands, thank you.

Walls or floor ?

 

[ocall1919]

Sorry it was meant to say tiling onto a wall lol

 

[Dave]

Sorry it was meant to say tiling onto a wall lol

Your first issue is the wall substrate can only hold a certain amount of weight and adding more weight could well result in a failure.

 

[ocall1919]

Your first issue is the wall substrate can only hold a certain amount of weight and adding more weight could well result in a failure.

The old tiles are well fit. But how would you if the substrate or wall underneath would fail?
Is it a case of trial and error?

 

[Dave]

The old tiles are well fit. But how would you if the substrate or wall underneath would fail?
Is it a case of trial and error?

Just pointing out a possibility 👍.

as for getting them to bond , a primer like eco-prim grip is a recommended product by Mapei

 

[ocall1919]

Just pointing out a possibility 👍.

as for getting them to bond , a primer like eco-prim grip is a recommended product by Mapei

Thank you mate!

I appreciate the reply and advice. I do have primer already etc. Is there any additional prep needed to rough the tiles up etc? Or just a good bed of adhesive and proper fitting.?

 

[Dave]

Thank you mate!

I appreciate the reply and advice. I do have primer already etc. Is there any additional prep needed to rough the tiles up etc? Or just a good bed of adhesive and proper fitting.?

Just degrease ( sugar soap ) and dry before primer.