Tiling onto chipboard, opinions??

[mikeyd859]

Hi guys.
I have always plied floors before and a customer asked me a question that i wasnt 100% sure on.
'why will adhesive stick to ply and not to chipboard'?
i rang my local supplier just to make sure that i was correct and one guy i spoke to said no adhesive wont stick and another said it will with primer.
just wondered if anyone can shed any light on the situation?

cheers mike

 

[White Room]

I found some adhesives stick to chipboard (not something I do) but it's the long term effect if moisture gets in will break down the chipboard.

 

[thickbed]

try 6mm hardibacker instead of ply

 

[Chalker]

Adhesive sticks very well to carpet! But it's not a very good substrate.
chipboard is not as stable as ply and breaks down when wet.

 

[Dave]

Adhesive sticks to the surface of chipboard no probs but with it being a particle board , then that is where the problem is , it isn't structural stable enough to 100% hold the tiles in-situ , other particle boards like OSB are the same .

some will say an elastomeric adhesive will work but if the particles give , then so will the tiles... So imo why risk it.

 

[demi34]

Hardier board or dittra matting

 

[mikeyd859]

thanks for that guys. at least i can give the customer a decent explination if anyone asks again

 

[widler]

I can understand hardie on chipboard cos you screw it .
What holds ditra down when/if the addy fails on the chipboard ???

 

[Ian]

I can understand hardie on chipboard cos you screw it .
What holds ditra down when/if the addy fails on the chipboard ???

It would normally be glued to chipboard with a product like Ardex af200, proper sticky!

 

[widler]

Ah ok

 

[Qwerty]

I can understand hardie on chipboard cos you screw it .
What holds ditra down when/if the addy fails on the chipboard ???

Strange isn't it, but Ditra say it's fine! I have fixed it to chipboard a few times with no issues whatsoever.

 

[Dave]

It does say compatibility of the adhesive there ? ... So what adhesive do they approve .

 

[Rookery]

It does say compatibility of the adhesive there ? ... So what adhesive do they approve .

AF200. Originally Schluter recommended sticking Ditra down with Blue Star. I use rapid set.

 

[Qwerty]

Yes, Ardex AF200........ http://www.ardex.co.uk/Portals/0/productdocs/e00ea7d2-287f-4376-8b33-df6c25e99aa6.pdf

 

[widler]

I'm starting one on Thursday, chipboard on concrete(not floating) using hardie glued and screwed .
Half was tiled before, just on the chipboard, stuck like shat to a blanket, took top layer of board off