Larrivee guitar finishes: How do they differ from nitro cellulose?

[eljay]

I've read that they're some kind of poly but I might be mistaken.

Thank you for info!

[Dotneck]

I read this..."Pure Acrylic Urethane hi-sheen Topcoat (Catalyzed), over top of a Catalyzed Urethane Basecoat. Satin: Pure Acrylic Urethane 10% Sheen Satin Finish (Catalyzed), Over top of a Catalyzed Urethane base coat. WE USE NO POLYESTER ON ANY ACOUSTIC INSTRUMENTS"

Its a whole different material than nitro cellulose...