Dalibor, I had success with IN18's (thanks to Michael Barile for helpful advice) dipping the tubes in Pebeo Vitrea glass paint (make sure it's the transparent type, comes in a variety of colors...) then letting them dry upside down (occasionally removing the drops that form at the bottom as the paint flows and dries). They look pretty authentic once dry. I did try using some krylon glass paint spray but the finish wasn't great...
I bought the paint off Amazon, PM me if you need any more details, Cheers, Nick -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/D1E6F417-CB30-4B77-8CA9-B954C882803E%40gmail.com. For more options, visit https://groups.google.com/d/optout.