Elastic waterproof glue/adhesive (in larger quantities)?

andre_xs

Nobbie1967 said:

What about adhesive foam? https://www.screwfix.com/p/dow-insta-stik-expanding-foam-grab-adhesive-gun-grade-750ml/72793

Thanks for the tip. How thick is it during application and after drying? Even if it is only a little bit expanding, I guess I won't be able to fit the click floor, because it'll be slightly uneven so that the panels won't click into each other? It seems using larger boards would be easier...

andre_xs

I've seen this, but it's for wood. Maybe there's something similar for vinyl? (wasn't able to find something myself...)
https://www.amazon.co.uk/Unika-Click-125ml-Laminate-waterproof/dp/B0060XZ1AU

Nobbie1967

andre_xs said:

Nobbie1967 said:

What about adhesive foam? https://www.screwfix.com/p/dow-insta-stik-expanding-foam-grab-adhesive-gun-grade-750ml/72793

Thanks for the tip. How thick is it during application and after drying? Even if it is only a little bit expanding, I guess I won't be able to fit the click floor, because it'll be slightly uneven so that the panels won't click into each other? It seems using larger boards would be easier...

andre_xs said:

Nobbie1967 said:

What about adhesive foam? https://www.screwfix.com/p/dow-insta-stik-expanding-foam-grab-adhesive-gun-grade-750ml/72793

Thanks for the tip. How thick is it during application and after drying? Even if it is only a little bit expanding, I guess I won't be able to fit the click floor, because it'll be slightly uneven so that the panels won't click into each other? It seems using larger boards would be easier...

It doesn’t keep expanding like normal filler foam and you can lay a thin bead if you use a gun. Not sure you could spread it across the whole area easily, just lay a series of lines. Apply pressure and it collapses which it why it is used to fit plasterboard. Could be a bit messy though.

andre_xs

Thanks to all again, I've now tested evo-stik Sticks Like Waterproof Sealant. This creates quite a good bond between the vinyl planks and damp proof membrane (and I've also tested  gluing the pieces of the vinyl planks to the silvery integrated damp proof membrane of the underlay, it sticks even better to that). Of course I don't know how long it'll last, but it's a good start.