which adhesive for 250x400 ceramic tile for bathroom

[gnome]

good morning.
im going to be tiling my bathroom next in a weeks time . i have a 250 x 400 ceramic 8mm tile that weighs a tad over 1.5kg so i know this comes to just under 16kg/m2. i was going to use wickes extra stong wall tile adhesive that claims to stick upto 300x600 or white star plus .... so what would you advise a competant diyer as there are so many !!!
im neat but im not fast so i dont want a fast set . whats the difference between keraquick and keraflex and i want it in white incase i get any mess .also what size notched trowel would i need to use 8mm ,6mm or smaller !!!
any advice would be greatly appreciated

 

[prceramics]

i would use an 8mm notched trowel unless the walls are bad as for adheisive i would use a powdered one personaly , topps slow set white would do the job if you knew somebody with a trade account otherwise you would be paying over the odds, stay away from wicks own brand

 

[Stef]

Depends on how flat the walls are, I normally go with a 6 or a 10mm notch. If walls are good then you can get away with a 6mm or skim the wall & the back of the tile & it gives you a bit more adhesive to play with.
I would go with a powder addy for that size of tile, I tend to use Weber set plus or Weber spf, they are both slow set so plenty working time. Or try Bal spf or Mapei p9.
There's loads of adhesive you can get but stay away from tubbed if you can on that size tile.

 

[gnome]

wall are very flat but have some minor flakey paint and bare areas of sound plaster. do i need to seal it and if yes with what . also keep the recommendations on which adhesives coming guys.. is keraflex maxi a good choice as i will have an electric shower so water hitting the tiles every day

 

[Stef]

Remove all paint if possible, if you have plastered walls with paint on it must be removed.
If its plasterboard then the paint probably won't come off.
Prime the walls with a dedicated tile primer, Bal apd, weber pr360, Mapei primer G.
Do not use PVA...

 

[Andy Allen]

Same as stef .....weber set plus..

 

[gnome]

looked at the weber set plus and states coverage 1.5kg of powder per m/2 for every 1mm of bed thickness . if my maths is correct and use an 8mm trowel this equates to 12kg of powder per m2 which is going to be very expensive . how much coverage do you pros get out of a 20kg bag at say applying it at 6 or 8mm

 

[Chalker]

You doing the maths wrong. An 8mm bed will compress down to a solid 4mm bed in a perfect world ( but it isn't)
so. 1.5 x 4 = 6kg. Divide into 20kg = 3.33 m per bag.

by my maths it will cost you £4.80 per m.

fact is though, you will probably not get 100% solid bed so might use slightly less. Or your walls may be out and you will use slightly more.

are you more confused now? I am!

 

[gnome]

makes perfect sense "chalker" and thankyou .

 

[gnome]

just ordered 3 bags (60kg) for just over £44 delivered
http://www.worldlyneeds.co.uk/weber-set-plus-tile-adhesive-white-20kg.html.
would of been £52.80 (£17.60 each) but they have a 6% off a £50 spend plus if you sign up to their news letter you get a £5 off code and last but not least there was free delivery on a £45 plus spend, so i got 3x 20kg bags for just under £15 each and delivered FREE

 

[Stef]

That's a decent price, I always work out my adhesive by either 3m2 or 5m2 per bag depending on how flat the substrate is.

 

[TJ Smiler]

Hi Gnome... i would tank the wet area before you tile mate

 

[gnome]

That's a decent price, I always work out my adhesive by either 3m2 or 5m2 per bag depending on how flat the substrate is.

thanks "stef" for your helpful comments and to the other guys