Hello,
to get graphics on dacron you can use many types of paint or textile inks. Most waterbased paints will eventually fall off.
i think a spray can would work. i know flock adhesive would be very permanent.

you can also use insignia sticky back material. cut out and apply.

for the record, high performance vinyl is generally 2 mil thick. intermediate vinyl is generally 3.2 mil .

hope this helps