I just want to see if others share this experience....

they say you shouldn't do it but I have had really good results with
spraying a light coat of polyurethane over my
painted surfaces.

I'm talking about aluminum parts which I have....

primed and dried well (a week or more) with canned rustoleum primer

painted with a good quality can spray paint (rustoleum -- krylon) and
let dry again, a week or more

sprayed a couple of light coats of the fast drying minwax spray can
satin polyurethane


It makes a huge difference in the ability to keep light scratches from
even appearing.

Anyone else? -- yet they say poly over paint is a big no no.

?