Lacquer or Urethane

[manfromsb]

I just completed a sweet paintjob on my bike, thanks to the great advice and tips found here. I will be painting a friends bike next week. His bike was painted by a shop no longer in business, about 7 years ago. The current paint job is in good shape. Before I begin I need to know if it's lacquer or urethane, as I have been reading on this board that I cannot shoot urethane over lacquer due to incompatability problems. Is there any easy way to tell the difference between the two? Thanks for your help.
Rick

 

[rex]

Soak a rag in lacquer thinner and set it on the paint for a minute or 2.If it melts the paint it's lacquer.It will usually load up in little balls if you sand it with something around 320 grit dry also.

 

[manfromsb]

Thanks for the advice Rex. I'll give it a try.