acrylic urethane ss repair

[ModelTAcre]

greetings: painted my vehicle over the weekend with dupont ss acrylic urethane black. most of the car turned out well except a few spots with dirt and a few spots that are dry looking and a little dull. this is my first time with urethane and i wonder what options i have. sand and polish, sand and clear, sand and re shoot? i am not sure what grit, wet or dry, ect. thanks for any help.

[Len]

For dirt or any spots that need to be taken down we usually use a Nib File then block sand with 1500 grit wet paper before buffing. For dull spots I would try sanding with 1500 wet paper then polishing. If these steps don't solve the problem then repainting the problem panels would probably be needed.

[ModelTAcre]

len, thanks for the help!