Take a look at www.fellers.com for outdoor vinyl and supplies. (You may want to get on the catalog mailing list).Do they sell different standard sizes of application tape ...
Download the pdf catalog and look on pages 42 to 45 for application tape.
You want to practice with the smaller sizes before you try to stick down the 12" wide tape.
I have 4", 6", and 12" rolls that cover what I need.