Thanks for your reply.
It's a polyester resin of some kind.
The materials data-sheet is in Italian, so I will have to contact the manufacturer (on Monday) to find out exactly.
Thanks again.
I have to fix a smallish (280x200mm <0.5kg) ABS enclosure to the rear of a GRP panel.
I am aware, thanks to Ed Clymer, that this is not recommended.
Is there a suitable non-porous material I could use as a gasket, that I could interpose between them, that would bond well to both?
What...