Paintwork Abnormality

[drewbie]

Hi
My 75 is finished in Starlight Silver and on the horizontal panels, bonnet, roof and boot lid, as developed what looks like hundreds of tiny scratches and is slowly getting worse. It looks awful when the sun catches it at the right angle. No scratch remover produce or nano clothes have any effect, in fact you cant even feel what looks like the scratches with a finger nail, it's as if the colour or clear coat is breaking down under the surface.
As anyone else experienced this with their paintwork and possibly found at least a method of masking it.

[suzublu]

My roof is exactly the same No amount of polishing, or compounding makes it any better. I'm thinking a respray is the only option.

[drewbie]

Have you ever discovered the cause? Its all a bit soul destroying when you go out your way to maintain the rest of the car in tip top condition.

[clf]

Originally Posted by drewbie

Have you ever discovered the cause? Its all a bit soul destroying when you go out your way to maintain the rest of the car in tip top condition.

Sun/UV, cheap/old materials, poor preparation, thin coats, general scratching allowing weathering into it, are what I have read.

[roverbarmy]

I remember reading an article whereby a certain motor manufacturer painted the basecoat in one room and the lacquer in another. A difference in temperature on the bodywork on the journey from one room to the next caused a "bloom" on the basecoat which reduced the bonding of the basecoat to lacquer. It only happened in certain weather conditions, on certain days, so was not constant through the same models over the years of production. I seem to remember that it was a Ford problem but something similar may have happened at MG Rover? Perhaps some of the old staff may remember what happened at MGR?
Crazing?

[clf]

Originally Posted by roverbarmy

I remember reading an article whereby a certain motor manufacturer painted the basecoat in one room and the lacquer in another. A difference in temperature on the bodywork on the journey from one room to the next caused a "bloom" on the basecoat which reduced the bonding of the basecoat to lacquer. It only happened in certain weather conditions, on certain days, so was not constant through the same models over the years of production. I seem to remember that it was a Ford problem but something similar may have happened at MG Rover? Perhaps some of the old staff may remember what happened at MGR?
Crazing?

because of union involvement and bad management, in the 70's BL would move some cars to different site, even body in white! They came painted with rust!

[clf]

it sounds like the lacquer is breaking down. The various reds seem to suffer from it the most or earlier than other colours.

unfortunately if it is, I believe it needs to be rubbed down and painted with top and clear coats.

There are posts regarding it.

and THIS video found HERE

[chris75]

Originally Posted by clf

The various reds seem to suffer from it the most or earlier than other colours.

Not Copperleaf red ! My 2001 model has no paint problems

[trikey]

Originally Posted by chris75

Not Copperleaf red ! My 2001 model has no paint problems

You are one of the lucky ones then! Copperleaf and BRG suffer the worst from the metallic on our cars.

Primrose yellow is by far the worst for paint fade issues.

[chris75]

Originally Posted by trikey

You are one of the lucky ones then!

Lucky ? Me ? That'll be a first then !