I am tiling a shower which I have waterproofed. The shop gave me a ready mix and since have found out this is wrong and was adviced on this forum to use Mapei P9. Which i'm having problems getting hold of before the weekend. However I took back the ready mix and they have given me a bag of Norcross Rapid Stone & Porcelain Tile Adhesive.
The tiles are mosaics dark opaque glass and metal squares. The addy they have given me is white as that is all they had.
My questions are:
1. Would the white be okay, I would have preferred grey but as that is all they had I took it, but if the advice is, don't use white, then I'll have to find a bag of grey Mapei P9. If so, please don't worry about the next question.
2. Would the addy be okay to use on a dunlop waterproofed wall with quick set render? I have pasted the specs below on the addy.
Norcros Rapid Porcelain & Stone Tile Adhesive is a white cement based thin bed adhesive designed for fixing fully vitrified porcelain, ceramic and natural stone tiles to a variety of building surfaces. It is a water and weather resistant and is suitable for both internal and external locations. It has a setting time of 3 hours permitting early trafficking of the tile installation. Containing unique Rock Tile polymeric binders the enhanced flexibility of the adhesive allows a greater range of fixing possibilities normally only achieved by the addition of separate admixtures.
The adhesive has excellent thermal ageing properties and is particularly suitable for heated floors and prepared plywood sheets.
Thanks for any advice, and sorry for keep posting, much better than the job going wrong. And learning all the time

What colour grout will you be using

light grout i.e white/ivory etc then white adhesive
dark grout i.e grey/black then grey adhesive will do!
as long as the adhesive is flexible then it should be fine,you can't used tubbed on tanking

Grout will be black

As above, use a grey addy

Then yes use grey..

To get a flat bed for the mosaics,, use a 4mm trowel and rib the wall, then flat off with the smooth side of the trowel.. then bed the sheets, this will then give a solid bed of adhesive and no shadowing on the mosaics..

Just a small tip from me to you..

I knew it really, just thought I would check as I've got the 20kg of white. More wasted money due to the lack of knowledge of the shop and myself of course. At least I'll have a good job done at the end thanks to your help.

Dave, thanks for that, I was just reading something about that a second ago. Sorry what do you mean by rib the wall?

using different adhesives and waterproofing kits is in itself ok....not great but ok. the reason for this is that each company ie dunlop etc will guarantee their products as long as the correct operating procedures are followed ie to be used in conjunction with their products so by mixing the 2 technically should the tiling they will point to the fact that you have used a different addy/waterproofing than theirs so the guarantee no longer applies.
as to the adhesive itself are you worried about it showing through the grout lines or are the tiles translucent? and as above what colour grout are you using?

chris

Originally Posted by 32alan

Grout will be black

This one

Originally Posted by CJ CERAMICS

using different adhesives and waterproofing kits is in itself ok....not great but ok. the reason for this is that each company ie dunlop etc will guarantee their products as long as the correct operating procedures are followed ie to be used in conjunction with their products so by mixing the 2 technically should the tiling they will point to the fact that you have used a different addy/waterproofing than theirs so the guarantee no longer applies.
as to the adhesive itself are you worried about it showing through the grout lines or are the tiles translucent? and as above what colour grout are you using?

chris

Problem is that the waterproofing is Dunlop and as far as I can tell from Screwfix, they only have a tub mix, no dry. So well confused with that one?

Originally Posted by 32alan

Dave, thanks for that, I was just reading something about that a second ago. Sorry what do you mean by rib the wall?

Use your 4mm serrator and comb the adhesive into ribs.. ok.. then flatten off..(smooth) this gives an even bed of adhesive and a flat bed of adhesive so no ribs show through and any darkening of the mosaics is even..

Originally Posted by Dave

Use your 4mm serrator and comb the adhesive into ribs.. ok.. then flatten off..(smooth) this gives an even bed of adhesive and a flat bed of adhesive so no ribs show through and any darkening of the mosaics is even..

Brilliant!!! Thanks Dave.

Originally Posted by 32alan

Problem is that the waterproofing is Dunlop and as far as I can tell from Screwfix, they only have a tub mix, no dry. So well confused with that one?

dunlop will guarantee their product only if it is used with dunlop adhesive....and vice versa,

should the tiling fail and you need to have them look at why they will say that it is due to using a unspecified product with thiers.

this is only if you have problems later down the line.
chris

Chris, you could say that for any product.. let the guy tile his shower..lol.. we all know that any adhesive comp would find a get out clause, so lets not confuse him..

He will be fine.

I understand what your saying Chris, but all advice points to using a dry mix and not ready mix, as I've spent a fortune on the tiles, I don't care about the guarantee just want it to work. If it fails due to the ready mix I bet I would have a real problem getting dunlop to agree to anything. I feel that the advice I have received on here is the best I can get and feel confident in applying it. However you would think that Dunlop must have looked into there ready mix and waterproofing system, wonder if they know that the addy wont go off from ready mix. I'm not going to take the chance.

Thanks for your input.

okey dokey will do dave....... im sure nothing will go wrong its just something i learned the hard wayand didnt want the same to happen.

sorry alan, i wasnt suggesting that you use a ready mixed adhesive i must have read the original post wrong

No problem Chris. Sorry for being so green about all this. All your help is much appreciated. I'm just glad that I'm able to ask for help and get such a quick response.

Helping people to tile.....thats what we like to do, good luck with it alan and remember to take your time and if you get stuck just ask away.
oh and post some piccys when done
chris

Thanks Chris.

Yes.. pics would be goooood!//

No problem Dave, once I'm finish will get some up, but will be some time as I wont be able to touch the bathroom for a few weeks due to work

However this will leave plenty of time for the shower to dry. Wifes not to happy, but hay, she can have a go if she wants. But then not sure if I want her to. I think she was the one who might have done the tiling in 'How about this.........' post from Mistral.