Barret,

I had good results using a Electric Soldering iron and a plastic
windshield ice scraper, to remove old plastic tape numbers. Just don't
get the Hull to hot. I worked the iron about about a 1/2 to 3/4 of an
inch from the plastic to be removed. I kept the Scraper in contact with
the plastic and the Iron in motion just above the edge of the Scraper
and number being removed.

Thom'sPage