Joined: Oct 2016
Posts: 854
Likes: 334
From: Cambridge UK
Bikes: 1903 24 spd Sunbeam, 1927 Humber, 3 1930 Raleighs, 2 1940s Sunbeams, 2 1940s Raleighs, Rudge, 1950s Robin Hood, 1958 Claud Butler, 2 1973 Colnago Supers, Eddie Merckx, 2 1980 Holdsworth, EG Bates funny TT bike, another 6 or so 1990s bikes
Aluminum bonding adhesives
The aerospace industry uses adhesives that bond aluminium together. The bond is far superior to welding or riveting but once again requires very toxic preparation and is oven cured. They even have a n Al adhesive emergency patching kit for aircraft stuck on the apron but a kit would cost as much as the bike brand new.