Hi all
I have some yellowed white paintwork that I want to refresh. I was
planning to lightly sand back the surface and then repaint the gloss. But
given that most of the pigment in paint is in the primer & undercoat, is it
worth sanding back to the undercoat and re-coating that before re-glossing?

Thanks
J^n

The Night Tripper wrote:
Hi all
I have some yellowed white paintwork that I want to refresh. I was
planning to lightly sand back the surface and then repaint the gloss. But
given that most of the pigment in paint is in the primer & undercoat, is it
worth sanding back to the undercoat and re-coating that before re-glossing?

Thanks
J^n


If the surface is smooth and still basically white after your light
sanding, then just a coat of gloss should be fine. Otherwise a coat of
primer/undercoat first. No need to over sand if it's sound

Thanks Stuart, that's useful

J^n