Paint Question

[lee02]

Hi All
My car is in the body shop having a back to fibreglass respray.
The car is Starmist Green when sanding through the layers you can see the undercoat is black. This came as a surprise to me I have metallic blue Jaguar XF which has a white undercoat. When the jag is in the sun it really pops. Obviously I would like the Griffith to do the same.
My question is why did TVR use a black undercoat? If I ask the body shop to use white undercoat will the colour change much? Will it come alive in the sun?

Thanks in advance Lee

[V8covin]

Black is usually used under green to aid coverage

[lee02]

Thanks the response, I get it if your painting lots of cars you need consistency. Would there be any merit in using a white undercoat to lift the colour in sunlight.

Surely someone has done this?

[thicksliced]

My '92 Starmist Blue Griffith has white primer/undercoat and hundreds of stonechips which I have given up touching up. when I get a respray a dark primer will be my choice!

[frontfloater]

I agree with the previous post. My dark red S2 has a white undercoat, and every stone chip stands out like a sore thumb. Even more so, if I use standard light-coloured car polish.

[lee02]

Gents thanks for your input. I hadn’t thought about stone chips, it makes perfect sense.
I’m not too keen on green maybe a colour change could be an option.

[Granturadriver]

See this https://m.youtube.com/watch?v=jHWnosO-VTA

and that https://m.youtube.com/watch?v=eHxQ8uzmfoc.

Maybe it is helpful.

[lee02]

Granturadriver said:

See this https://m.youtube.com/watch?v=jHWnosO-VTA

and that https://m.youtube.com/watch?v=eHxQ8uzmfoc.

Maybe it is helpful.

Thanks Martin
That was really interesting and surprising