jtiii
I paid good money for you to read this!
I know, old thread, but we once did a couple dozen Cessnas for a local flight school, rivets everywhere. Cast metallic film. We eventually came up with this method and really flew - quick and violent rivet brush to compress the air into one tight bubble against the rivet. Heat it quickly until it pops (about 2 seconds), wait 3 seconds for the vinyl to cool just enough, then another quick and violent rivet brush and on to the next one.