After a bit of advice please.

I am in process of tiling a shower - Wall base is Quick Set Render BAL, and have used the Dunlop Waterproof from Screwfix. Render has had plenty of time to set and dry and will leave the waterproofing for a few days. I didn't have a problem until I came across a posting on YouTube where a bloke has said the using ready mix adhesive wont go off with the waterproofing. So my question is, I'm going to use Granfix Multifix adhesive (I was sold the ready mix from the tile suppliers and from what I have read is not a bad mix) with glass and metal mosaics set on mesh of 300x300mm. Will I have a problem with the set off? Or any other advice much appreciated. Thanks.

I wouldnt be using ready mixed at all over waterproofing ( tanking) best off with a polymer modified cement based adhesive.

Hi there, welcome to the forum.
I would not use a ready mixed adhesive for anything especially a shower area. Use a decent bagged adhesive from tile giant, if you dont want a fast setting one then get mapei's p9, it has a long bucket life and is a far superior product.

definitely not use a dispersion (tubbed ready mix) adhesive over your tanking, it'll never set!

Think he heard you the first time Doug............

ha ha, post reply tab had frozen!

Excellent!! Thanks for all your advice, just as well I saw the Tube as I was meant to tile yesterday, but had problems with electrics so didn't. Amazing would have cost me a fortune and a lot of frustration. Thanks again guys, very big help.
Shame the place I bought the tiles from obviously didn't have a clue, and they were such nice people. would have had a mouthful from me if I had completed the job. However on a good point they are not giving my any problems on change. As I did get it all back in June. Taking me ages to get to this point, but at least getting it right, thanks to a lot of advice from this forum

Sorry guys would just like to add with the Adesilex P9 from Mapei, do I need any further prep work like primers or just tile away?

Also seems to be a very big difference in pricing on this, TileGiant £30.64 everyone else from £13 up to £17. Very confused is this the same adhesive? Problem I got is no one near me except for TileGiant has it. Is there a Bal alternative?