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Thread: I sprayed my yellowed TRS80 computer.

  1. #1
    Join Date
    Feb 2014
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    Default I sprayed my yellowed TRS80 computer.

    After reading about the problems with yellowed computers and the way to solve this,
    I decided to spray my computer.

    I took of all parts and cleaned them with white spirit.

    I have not sanded the surface to prevent scratching.

    I have four thin covering layers of car paint sprayed on them.

    I am very pleased with the result, see the picture.

    HPIM0117.jpg

  2. #2
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    Quote Originally Posted by Hans01 View Post
    After reading about the problems with yellowed computers and the way to solve this,
    I decided to spray my computer.

    I took of all parts and cleaned them with white spirit.

    I have not sanded the surface to prevent scratching.

    I have four thin covering layers of car paint sprayed on them.

    I am very pleased with the result, see the picture.

    HPIM0117.jpg
    Looks great - very professional. I have a 4P that I'm working on and need a few days of warm weather and sunshine to get the Retrobrite concoction up and working. I do have a nice spray gun setup though - you gave me some food for thought.

  3. #3
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    Default

    Quote Originally Posted by Hans01 View Post
    After reading about the problems with yellowed computers and the way to solve this,
    ...
    I have four thin covering layers of car paint sprayed on them.

    ...
    What sort of pain did you use?

  4. #4
    Join Date
    Nov 2013
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    Ontario, Canada
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    Default

    Looks great! I have a Tandy 3000 that I used the retrobrite on. Helped a bunch, but it still has some yellowing. It wouldn't be a problem but the previous owner had labels on the face that resulted in some uneven yellowing on the surface.

    I think I may try the spray paint once the weather is nice. The default colour is more of a beige, so I would probably try to find that colour.

    Thanks for sharing!

    Is this a gloss finish or no?
    Last edited by mojorific; March 25th, 2014 at 06:18 AM.

  5. #5
    Join Date
    Mar 2012
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    Cincinnati Ohio
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    Default

    That does look really good. As a yellowed 4P owner, I would appreciate it if you shared exactly which paint you used if it's regular off the shelf stuff.
    This space intentionally left blank [ ].

  6. #6
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    Marietta, GA
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    Default

    And how do you keep dust from settling on it while it dries?

  7. #7
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    Quote Originally Posted by SomeGuy View Post
    And how do you keep dust from settling on it while it dries?
    Eh, spray it while its on the dining room table . . .

  8. #8
    Join Date
    Feb 2014
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    Netherlands
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    Default

    Thank you for the questions, I would like to share the information with all of you.

    You should not sand the surface, but clean it very well from grease and dirt.
    I have the box with the rear end up put on a support of about one meter high,
    so you can access the case around well.
    I have four just opaque layers of paint sprayed on with an interval of fifteen minutes.
    As it is nearly dry in that time, you don't need to worry about dust.
    If you have a durty place to work, you can spay some water on the floor.
    Make sure that all the black parts are very well taped and all the holes are made ​​tight.
    You have very quick some spray on places you don't want.

    I used automotive paint of the brand:
    MOTIP Acrylic paint number 45270.
    Made in Germany
    This is an almost white, not shiny, color.

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