How can I tell if the finish is Nitro or Poly?

Discussion in 'Guitars in General' started by skunizzi, Sep 9, 2018.

  1. Husky

    Husky Gold Supporting Member

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    I agree, difficult to prevent nitrocellulose from feeling sticky on a neck. I do far prefer Urethane to Polyester on the neck though.
     
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  2. Chuck Hairy

    Chuck Hairy Member

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    If it's Nitro, you will pick up the guitar and all of a sudden play like Jimi H, Clapton, Jeff Beck, and Keith Richards all rolled into one. If you pick it up and play like me, it's poly!
     
  3. Chuck Hairy

    Chuck Hairy Member

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    A nitro finish would make more of a difference on the sound an acoustic guitar, or maybe, just maybe on a hollow body. I doubt whether anyone could tell the difference with a solid body in a blind test. It's one of those things that drive guitar prices up.
     
  4. Chuck Hairy

    Chuck Hairy Member

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    I prefer a sanded smooth neck. The hand just glides up and down.
     
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  5. MrDoty

    MrDoty Supporting Member

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    Does your hand stick to it...it’s nitro.
     
  6. stratotastic

    stratotastic Member

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    These are correct. If you're still not sure, take it out to your local blooze lawyer corksniff open mic and watch for approving nods and requests to "take a look at it" between Stormy Monday and The Thrill is Gone. Then you'll know it's nitro. If you get completely ignored or at least not called up to the stage for a turn because they "ran out of time," it's definitely poly.
     
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  7. zenmindbeginner

    zenmindbeginner Member

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    Fender can't use nitro in California, Mexico's dry weather is great for nitro... but the Classic Series all have a
    "gloss urethane finish" to my knowledge.
     
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  8. Stike

    Stike Member

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    I'm not certain but I think they were using some type of conversion varnish before the UV. stuff.
     
  9. gunslinger

    gunslinger Member

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    It's probably poly. Personally I like it better than nitrocellulose. It protects better.
     
  10. skunizzi

    skunizzi Member

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    Thanks for everyones input. I will try some of your suggestions before performing the finish repair. Nothing worse than making it worse!

    Cheers!
     
  11. Dickey

    Dickey Member

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    Oh cheese & rice. Who cares what it is; it's Mexican.
    And...you ain't supposed to drink the bongwater.
     
  12. Tony Done

    Tony Done Member

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    A drop of nail varnish remover in an inconspicuous spot will indicate the different. It will dissolve nitro and only have a small effect on poly.

    I wouldn't use CA to repair nitro, it leaves witness lines. - Been there, done that.
     
  13. Husky

    Husky Gold Supporting Member

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    Fender can shoot nitro in CA because they have an afterburner.
     
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  14. Husky

    Husky Gold Supporting Member

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    Right, conversion varnish, then UV poly, now I think they dropped the UV and I don’t blame them.

    And again it isn’t nitrocellulose but to check put acetone on a rag and rub in a place you won’t see. If the paint melts it’s not polyester.

    I have repaired polyester with the right CA glue, ultra thin wicking. Can come out great. There is really no other choice if you want to repair a crack with any strength.
     
  15. Husky

    Husky Gold Supporting Member

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    It really is not the paint but the properties and the application thickness. Olson makes one hell of an acoustic guitar, 30K +. Polyester too.
     
  16. buddachile

    buddachile Member

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    Does the guitar have haunting mids? If so its definitely nitro.
     
  17. EtaCarinae

    EtaCarinae Member

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    Do the mids creep about your house and haunt your dreams? If so, it's definitely nitro.
     
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  18. 98G2PRU

    98G2PRU Member

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    Nitro has a very distinct smell when its fresh. If you ever go to Gibson in Memphis, you can smell it from blocks away.

    +
     
  19. MaxTwang

    MaxTwang Member

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  20. buddastrat

    buddastrat Member

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    Play/ practice on it and get really good in your preferred style.

    Then you can tell people whatever paint you want it to be, they will believe you. And then it will be that.
     

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