Thanks Don,
I’m wondering how on earth that O -ring blew up to twice its size. I never soaked an airbrush, and I’m usually very careful and neat about cleaning. I’ve used canned air before, I wonder If the cold from that method would affect the O-ring. Maybe I should stick to the compressor.
The only thing I know of that can cause the o-ring to enlarge is exposure to solvents, like lacquer thinner or mineral spirits. That’s what I assumed happened to yours. If you’ve never gotten solvent on it, I don’t know what would have caused it. Cold might make it brittle, but I’ve never heard of it changing dimensions. Canned air is not very effective and it’s expensive, but I’ve never heard of it causing o-ring damage.
Don