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
Remove flakes first
You should wire brush all the loose paint / rust off before you apply evaporust. If left too long evaporust will attack the paint. Follow the instructions on the tin. Many suppliers claim a primer isn't needed but I seriously have doubts about that.