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Question About Silverburst Finish

Discussion in 'Basses [BG]' started by nocontrols, May 11, 2011.


  1. nocontrols

    nocontrols

    Apr 2, 2011
    It's well known that Gibson's original Silverburst-finished instruments from the late 70's and very early 80's turned a sickly shade of yellow/green over time.

    Would the same be true of a Silverburst-finished bass produced today? Did they change the type of paint used or address the issue of discoloration in aging SB instruments?
     
  2. john grey

    john grey

    Apr 19, 2011
    Oracle, Arizona
    I think that may be a tough question to answer with any security as the "color change" issue may have several variable factors involved (and some unknowns). Paint/finish chemistry is often a "trade-secret" & even if the brand were known the chemistry of that material could be unknown to a greater extent. There are several methods of making the same type of paint/finish within one general type.
    1.) Were the "color change" examples exposed to variables such as temperature, UV, etc?
    2.) What were the paints / finishes used in the units that had altered color?
    3.) What conditions were in place with those that changed color (time, temp,UV, etc).
    4.) What are the comparison modern paints/finishes, etc?

    The point being - is that if we knew "acrylic Blue #4" [made in ratio of 3/10th dye base & 7/10 binder which included flaked aluminum] was in place on Ash and exposed to little or no UV for a time period of 30yrs, yet exposed to temperature fluctuations of 30 degrees Fahrenheit throughout a 24hr period: saw a visual color breakdown we may be able to research the dye base and look for color holding issues because the binder wasn't exposed to a great amount of UV in our example. Aluminum flake (which is VERY common is many paints OUTSIDE of just silver or gold) is VERY susceptible to UV discoloration and finish breakdown; so if any metal was used and the finish exposed to UV, that would account for a great deal of issues.
    It's just my opinion but the question is very tough to answer with any real accuracy.
     

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