Back in the day we used to mix our own glazing putty from a can
Now I just grab a tube of 3M's ready-made stuff. The old way took forever to get smooth and would shrink like crazy after a week. The new stuff goes on easy, dries fast, and stays put. Anyone else remember fighting with that old can and a putty knife for an hour?
Paul87, that old mix probably held an edge because it was half rust by volume. My last can of it etched my initials into the workbench just from the fumes.
Oh man, tell me about it! I had a can of that stuff from like '08 that would smoke if you left it open too long. Swear to God, I put a thin coat on a chisel and came back an hour later to find it had eaten through the rust on a clamp I had sitting nearby. That new stuff just sits there like water, no bite at all.