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Please - NO offers to Buy or Sell in this forum category
Statements such as, "I'm thinking about selling this." are considered an offer to sell.
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Joined: Dec 2019
Posts: 150 Likes: 24
Petro Enthusiast
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Petro Enthusiast
Joined: Dec 2019
Posts: 150 Likes: 24 |
Definitely see differences in the location of the grommets with respect to the lettering as well as the orientation of the arc in Billups between the two...
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Joined: Apr 2003
Posts: 2,195 Likes: 74
Veteran Member
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Veteran Member
Joined: Apr 2003
Posts: 2,195 Likes: 74 |
I’m believing you Randy. Red is the first color to sun fade with time, not blue.
Wanted early tin litho signage. petro, farm, auto, etc.
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Joined: Mar 2005
Posts: 498 Likes: 14
Petro Enthusiast
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Petro Enthusiast
Joined: Mar 2005
Posts: 498 Likes: 14 |
I haven't heard that about colors before; ie, the red fading first before blue. Any idea why?
Alan Collecting MN and Minneapolis gas and oil related items
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Joined: Jan 2012
Posts: 1,351 Likes: 62
Veteran Member
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Veteran Member
Joined: Jan 2012
Posts: 1,351 Likes: 62 |
Not sure what happens chemically, the red must be less stable to UV light. See it more in decals than the porcelain signs. Not really a surprise when you buy colorants they'll let you know how UV stable it is. I know blue is a good color, we dope our plastics at work slightly blue to compensate for UV.
Last edited by Paul Bell; Sat May 02 2020 02:54 PM.
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Joined: Jan 2013
Posts: 2,004 Likes: 59
Veteran Member
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Veteran Member
Joined: Jan 2013
Posts: 2,004 Likes: 59 |
Car dealer told me the same, red goes first and even tried to sell me a form of insurance on it. Still have the car 11 years later. The red looks good! Jim should have the answer, shouldn't he?!
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Joined: Jul 2000
Posts: 8,513 Likes: 293
Moderator
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Moderator
Joined: Jul 2000
Posts: 8,513 Likes: 293 |
Generally red pigments are the most vulnerable to fade in sunlight, but there are weak pigments in other colors too. The last few generations of auto paints have been combating the red fade issue much better. Colors now are under a clear layer that protects them. They are putting UV blocking pigments into automotive clear to keep the destructive forces of UV rays from getting inside the paint film and breaking it down.
Jim "Oldgas" Potts Your host and moderator
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Joined: Mar 2005
Posts: 498 Likes: 14
Petro Enthusiast
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Petro Enthusiast
Joined: Mar 2005
Posts: 498 Likes: 14 |
But in terms of an authentic, older sign, it would be expected that red would fade sooner than blue. Is that correct?
Alan Collecting MN and Minneapolis gas and oil related items
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Joined: Jul 2000
Posts: 8,513 Likes: 293
Moderator
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Moderator
Joined: Jul 2000
Posts: 8,513 Likes: 293 |
But in terms of an authentic, older sign, it would be expected that red would fade sooner than blue. Is that correct? Yes, nearly all the time, but not absolutely always. There were some weak pigments in other colors, especially back in the old days.
Jim "Oldgas" Potts Your host and moderator
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