Hi guys,you have probably answered this all before.i have put down12mm ply screwed to floor what adhesive shall i use ,300-300 tiles to be used.

Single part flexible, check if the manufacturer reccomends if priming is required

should have used 18mm really but if the floor is really solid as a rock i am sure it will be fine. you are supposed to prime the back and edges first. although i have never bothered.. and never had any comebacks. i use bal bond on the face and bal single part flex (really good) i know you dont have to use it but i do. hope this helps.

Spf will be fine. However, I prefer to use Ardex 7001 just to be sure. I always prime with neat Ardex Primer 51 before tiling on plywood but check adhesive manufacturers instructions.

should have used 18mm really but if the floor is really solid as a rock i am sure it will be fine.

WHY?

12MM WILL BE FINE ONTO T AND G BOARDS OR CHIPBOARD FLOORING.

i will be using mapei flexi adhesive will that be okay, do i need to prime first

keraquick from mapei.

As long as you checked the original substrate for deflection issues, then no probs...

floor is solid as a rock,what size trowel for laying floor tiles ,thanks for all the advice

10mm half moon for me

I would normally use Keraquick, but i've just used the new weber set rapid spf and its pretty awesome tackle, low dust, suitable for 9mm ply or 6mm construction board.

Originally Posted by TrumpersUnited

I would normally use Keraquick, but i've just used the new weber set rapid spf and its pretty awesome tackle, low dust, suitable for 9mm ply or 6mm construction board.

Used Weber on job before last and I agree wonderful stuff, just used keraquick with latex plus and this was a nightmare it stuck to the rubimix like cack on a blanket.

Originally Posted by mags

Used Weber on job before last and I agree wonderful stuff, just used keraquick with latex plus and this was a nightmare it stuck to the rubimix like cack on a blanket.

Good stuff though...

Keraquick is the stuff I use, don't forget to add some latex to mix it with.

andy

Keraquick with latex plus should be a safe bet.
If anyone needs a copy of the Mapei black book with all the descriptions of the adhesives, just PM me and I can post one out to you.

Just to add to above - I would add latex plus as a precaution as the ply is only 12mm. Shouldn't need to prime the ply if you do use Keraquick.

Originally Posted by brian c

should have used 18mm really but if the floor is really solid as a rock i am sure it will be fine.

WHY?

12MM WILL BE FINE ONTO T AND G BOARDS OR CHIPBOARD FLOORING.

British Standard Recommendations are;

minimum 18 mm overlay if joists are at 400mm centres or suitable cement fibreboard.

minimum 10mm overlay if the joists are at 300mm centres (new build) or suitable cement based fibreboard

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