Fabric Work

OK. So I put a rock through the bottom of my horizontal stabilizer
landing my Husky up in Wyoming (hunting gophers). I repaired it with
duct tape which got me home, and I patched it with fabric and painted
it. It is about a 12" x 12" repair. My mechanic signed off on the
annual with the repair so it is airworthy. But...it's not cosmetically
so good. Now I think I can buy the fabric, fabric "tape", and manage
to take the piece off and re-fabric it. The part I am not sure of is
the painting. All I know is the final coats of paint will be what is
on the rest of the plane which is a polyurethane (the two part stuff),
PPG Insignia White. But what do I put on top of the fabric and before
the paint (silver etc)?

Has anyone ever painted fabric with a polyurethane? What are the steps
or where do I find out?

Thanks