Acrylic Enamel vs Acrylic Urethane

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Opinions on which is better for spraying an engine bay B5 blue.

Shitty part about living in SoCal. It’s hard to get decent paint anymore.

I think urathane is better as you could color sand and buff. Enamel, tuff to do that with. I think urathane would be more durable. This car was a single stage urathane, never buffed. That stuff flowed out so nice.
But like Cali you can’t buy “good stuff” anymore.