Cove adhesive

[gemshan1]

Hi guys, I’ve recently fitted some polystyrene coving and am well happy with it, especially the weight, I used instant nails from toolstation but not that impressed with it as I still had to pin the coving until it set.... my question is are the any instant grab adhesives out the that would work without having to wait for it to set? Thanks

 

[RandomGrinch]

I've had no issues with 'No more nails', but that may be just for me!
I apply it fairly liberally to the grooves, push it into place and it just sticks

 

[johnny2007]

Fixall from soudal.
They also do a turbo version which grabs instantly and dries in 15 minutes.

 

[Wayners]

I'd use stixall with that cove. Thin bead set back. Instant grab.
Then use decorating caulk along wall and ceiling edges of coving.
There is a proper mastic for that cove which is just caulk imo.
Problem with no nails mastic id it's brittle when dry. No give. No real grab. Its obsolete now.

Stixall is a polymer and a bit like silicone but can be painted with emulsion. Has some give. high grab.
Just don't use where you can see it as not water soluble like caulk so not easy to wipe