Anyone know how to tile on seraphite? Primer?

[Sean-tries-to-tile]

I have just been told this is seraphite, just about to tile it, wasn't going to prime as I thought it was just sand/cement. House is 1955. Cheers

 

[angrypirate]

Not having any idea what seraphite is, I would be tempted to mechanically fix backer board over it then tile to that, just to be safe.

 

[Sean-tries-to-tile]

Not having any idea what seraphite is, I would be tempted to mechanically fix backer board over it then tile to that, just to be safe.

Hi, thanks for the advice. Unfortunately I can't do that though because its a tiny cloakroom toilet and every cm counts! Even tiling was a concession because it reduces the rooms width by about 3cm!

 

[Dave]

Thats a new substrate on me. I’ve never heard of Seraphite. ?

 

[Sean-tries-to-tile]

Thats a new substrate on me. I’ve never heard of Seraphite. ?

Hi, Well it may not be, I was just told that that is what it is... what does it look like to u in the photo? Is in a downstairs cloakroom loo. At present I plan to use no primer as I don't know what the substrate is (and I've heard pva is a no no for tile adhesive

 

[Dave]

Hi, Well it may not be, I was just told that that is what it is... what does it look like to u in the photo? Is in a downstairs cloakroom loo. At present I plan to use no primer as I don't know what the substrate is (and I've heard pva is a no no for tile adhesive

What adhesive you using ?

 

[angrypirate]

iirc even if it is sand and cement it should be primed, the only thing I don't prime is backer board.

 

[Sean-tries-to-tile]

Ah thanks, I'm sure that very good advice, but I don't know what it is... if I primed with acrylic primer or sbr, and it turned out to be gypsum based plaster... would that be a disaster?

 

[Sean-tries-to-tile]

Dave, BAL flex one is the adhesive

 

[Dave]

Dave, BAL flex one is the adhesive

Not used it lol. But primer is required imo mate. Don’t over apply so not to create a skin.