Magic

I just have framed pictures of an Activa and an XM on my living room wall

Moderator: RichardW
You never know James, it may well be the perfect stuff although the old stuff bears no relation to aged mastic... Think of very dry thickly applied black emulsion paint!Hell Razor5543 wrote: ↑01 Feb 2021, 18:34I wonder if standard windscreen mastic would suit? It bonds well, and normally is a black colour.
Black Bostick was, according to the gurus up on the vintage radio forum, the stuff originally used but sadly it's no longer available
That's the stuff most of the gurus on the VR forum recommend Chris... Some even suggest instant gasket - just as long as it is not the sort that liberates acetic acid as it cures...
Given the nature of the materials to be bonded, that would seem the perfect stuff Mick. I take it that's the kind of adhesive used to bond rear-view mirrors to windscreens. Surprisingly, caution was expressed on the VR forum that such adhesives are considered too permanentmickthemaverick wrote: ↑01 Feb 2021, 18:45I asked my mate who is rebuilding my screen PCB on your behalf Jim and he uses a product called Loctite 349 to fix the glass to the ally surround. Apparently suited for all instrumentation purposes.![]()
Thanks Chris, excellentwhite exec wrote: ↑02 Feb 2021, 11:39It's silicone sealant that contains acetic acid, Jim.
Polyurethane adhesive/sealant cures by absorbing atmospheric moisture. A thin film of it will 'turn to rubber' quite quickly, but a thick mass of it (eg used to refurb a silentbloc-type mount/bush) might take days or even a couple of weeks to fully cure.
You should have seen the results of me using Gorilla glue on my specs