Do red cars still fade badly?
Discussion
As someone said earlier 'it's the UV which fades the paint'.
Basically the paint is reacting to high energy photons in a similar way to your skin getting a tan. Consider the visible spectrum being made up of red, green and blue photons. If something is seen red by the human eye, it means that the paint is reflecting red photons back to you - meaning that it is absorbing blue and green.
The energy of a photon is wavelength (colour) dependent, with blue (UV being at the short end of blue) having the most energy:
Energy(photon) = Planck's constant * speed of light/wavelength
Planck's constant and speed of light are constants. Since wavelength is on the denominator, UV/blue light has higher energy than red, and so providing more energy into a chemical reaction is what helps to fade red paint.
Bit of a Brian Cox moment, hope it helps. J
Basically the paint is reacting to high energy photons in a similar way to your skin getting a tan. Consider the visible spectrum being made up of red, green and blue photons. If something is seen red by the human eye, it means that the paint is reflecting red photons back to you - meaning that it is absorbing blue and green.
The energy of a photon is wavelength (colour) dependent, with blue (UV being at the short end of blue) having the most energy:
Energy(photon) = Planck's constant * speed of light/wavelength
Planck's constant and speed of light are constants. Since wavelength is on the denominator, UV/blue light has higher energy than red, and so providing more energy into a chemical reaction is what helps to fade red paint.
Bit of a Brian Cox moment, hope it helps. J
It all depends on the type of paint, single stage red paint without a top clearcoat will fade but modern reds with a clearcoat won't, As far as I know. When you polish a single stage red that's oxidised your polishing pad will turn red meaning that paint is being removed this doesn't happen on clearcoat paints, well it can but you're through the clearcoat at that point
John.
John.
I always thought that 'red car fade' came in around the late 80's when lead based paints were banned in industry. I always thought that car manufacturers didn't have much time to get their acts together and invent a non-fade lead free substitute. I was under the impression that by the beginning of the last decade they'd got their acts together and now cars don't fade in the same way.
My Sister in law's 90's corsa is now Salmon pink from 'red car fade'.
My Sister in law's 90's corsa is now Salmon pink from 'red car fade'.
T0M said:
kiethton said:
most red cars produced in the last year should be ok for the future. When buying my astra i mentioned the fading red paint on some vauxhalls and the salesman said that a completely new colour and type of paint is being used on new red vauxhalls from approx 2007 onwards
Weso said:
T0M said:
kiethton said:
most red cars produced in the last year should be ok for the future. When buying my astra i mentioned the fading red paint on some vauxhalls and the salesman said that a completely new colour and type of paint is being used on new red vauxhalls from approx 2007 onwards
minimatt1967 said:
Opulent said:
1990 MR2, in super red. Was super pink in reality.
Even with regular polishing?I'll not be having another red car again. (I know the 2 was old, but so is any car I'll be likely to afford. If it were a company car then I may go red, but otherwise it's silver, black or white all the way.)
Chicane-UK said:
Does seem to be an 80's / 90's thing! There is 1997 Polo near my friends place which is virtually white from fading. I keep debating coming over with a bottle of Super Resin Polish and just polishing one panel on it
i've got a polo near my favourite curry house that is monumentally badly faded and abused. i have been soooooo close on several occasions to doing just that, but my plan involved swear words polished into various panels, it's not vandalism........Yes, i am that puerile.
Greg
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