Adhesive for 300 x 600 x 10 Slate Tiles - Larsen used and no good

[doug boardley]

Dean, I use Ultra addy, never had a failure with it (yet!)

 

[Dan]

... I'm not worried about damage to the new whirlpool (although a pain), more worried if someone had been in the bath and a 5kg slate tile would have landed on their heads - not a good situation...

How often do I say this?!?!?!?!?

And it's becoming more of a problem, due to the fact stone is the popular choice at the mo it seems.

I wish tile outlets would STRESS the importance of choosing the right products and going through the right procedures. A simple A4 sheet with a bunch of advice with every stone sale would pay dividends. The customer could leave this with the tiles and sure enough even an amateur tiler would see something's wrong if it was?

Though as Mike said (I think it was in this post?) - the tiler has to always be to blame really as it's only them that can stop the job due to a reason that can affect the job. The customer, the shop, the manufacturers, nobody else can be fully to blame like the tiler can be no matter what's gone wrong on a job.

 

[Rich]

Would just like to add, go easy on Larsen. If you had used Mapei or any other brand without a primer, the same thing would have happened.

It wasnt a fault with the product but a fault in the substrate prep.

Hope you get it all sorted

 

[Dan]

Larsen is a sound family-owned Irish firm. I don't think anybody was knocking them per say. I think this is an adhesive we'll see more of in the future.

 

[Dean Pedder]

Larsen is a sound family-owned Irish firm. I don't think anybody was knocking them per say. I think this is an adhesive we'll see more of in the future.

No... not knocking the Irish, I'm part Irish myself!.... The fault as I see it is between the manufacturer and the supplier... I told the supplier my requirements, that I was laying the large format slate on both floor and walls... therefore I should have been advised the use of a suitable latex base primer as well... obviously they are dealing with Larsen and are buying quantities of their adhesives, therefore it is only fair that the Larsen's agent in the UK should make the supplier aware of any ancillary or complimentary products... it's in the interest of the supplier and the manufacturer to make sure that 5kg tiles stay on the wall and not land on anyone's bonce... and let's face it, for the sake of an extra £10, would have saved damage to my new bath and a whole heap of time removing tiles off walls, then adhesive off tiles then relaying the same tiles again... let alone the cost of the wasted adhesive... Thanks, Dean

 

[grumpygrouter]

Yes... I think it's 20kg per m2... each tile is around 4.8kg

That tile weight with those dimensions give a weight /m2 of 26.7kg add the weight of the adhesive and grout and you have exceded the safe working limit of a plastered wall by 50%......proceed with caution!

 

[Dean Pedder]

That tile weight with those dimensions give a weight /m2 of 26.7kg add the weight of the adhesive and grout and you have exceded the safe working limit of a plastered wall by 50%......proceed with caution!

Hi grumpygrouter.... thanks for the info... as part of my belt and braces approach I have now ripped all the drywall out and I'm in the process of fixing no more ply backing board to the blocks... I will prime this afterwards... the boards will now give me more than enough adhesion for the tiles... I've opted for Ultra, rather than the Larsen, as I've used this before and it has never let me down and is good to work with... Dean

 

[mcessex]

Hi dean,

I have read the posts above and there are some great guys in here with a massive amount of knowledge. I think no matter what adhesive had been used i think there probably would of been a problem on way or another as the product is only as good as the substrate you are tiling onto. A poor substrate will always lead to a failure or problem. Think definatley a good idea to use a ply backing boards due to the weight. - Mat

 

[White Room]

I would'nt use ply on walls and certainly not in wet areas IMO

 

[steveb]

he's using no more ply whitebeam