Thompsons water seal on slate?

[xtramike]

Hello
I'm just about to lay 35m of rustic multicoloured slate. Has anyone any experience of using Thompsons as a sealant?
Thanks in advance

 

[kilty55]

erm,isnt that waterseal for brickwork mate?

 

[xtramike]

Yes, but will it work as a sealant?
Tile sealant seems to be about £10.00 a litre; Thompsons is £12.00 for 5 litres.

 

[kilty55]

there is no doubt a very good reason for the difference in price,one is for brick work and one is for high quality tile materials to be sealed with,i have necer used thompsons as a sealer for tiles and i never will.

35m square of slate must have been expensive mike and using this brick sealer to save 30 quid and the chance it may have of ruining your job doesnt add up mate.

think how upset you will be if it goes wrong

 

[xtramike]

Ok
What about using motar as an adhesive?

 

[kilty55]

hiya mike,can we have some info please as to what the slate is going to be tiled onto,,what is the substrate? can advise you better and i wouldnt use mortar or thompsons water seal mate

 

[aqua blue]

Hi xtramike, I agree with kitty55 this will effect future cleaning/maintenance with appropriate cleaners long term.

 

[xtramike]

Substrate is concrete. I'm just to save a bit of money!!

 

[aqua blue]

If the concrete is sound and level I would personally use BAL Rapidset flexible and
BAL Flexgrout.

​

 

[Perry]

Use blue tack it cheaper put a small piece in the centre of the tile and hope :yikes: