Thanks so much for your kind comments, Karl. The reason he uses industrial paint is the cost factor. Why pay $2 - $3 for 10-20ml of hobby paint when 400ml of industrial paint (spray can) costs only $1.50? He would spray it out into a small bottle just enough for use at a time.
I've already told him about your wish for him to join here, but I don't know whether he'll have the time or the capability to do so.
Sorry for my late reply. Lately I've been busy updating my sound page. While I update my model website just over 2 times (pages) a month, I update my sound page every three days with 16 new songs. Now I have 838 songs and counting. Eight months in the making, I've gone from 0 play per day to over 11,000 plays:
falconbbs.com/some-stats.jpg