Zapper? Sounds like thats what I need. Is it a tool? A liquid? Where can I find one/it??? Thanks!
NO NO NO NO!!!!!
The zapper (or vinyl eraser) is a great tool, but like most tools, it has its place. It is good for vehicles (with steel doors and body panels) as the paint doesn't do funny things.
You cannot use it on alum panels, as it does heat the metal much faster, and that will cause the paint to "burn". Don't use it on fiberglass (like an ambulance), because it will mess the paint up as well.
The only choice you have is to use a little chisler, get under a corner, and gently lift, and use a heat gun only to loosen the adhesive. Too much, and the vinyl will stretch and pull apart, not enough, and it will "break".
What I do is tell the customer that its an hourly charge, ($75 per hour), then I get a couple of nephews and my son, and go at it. I pay them each $20 an hour, and buy them lunch and sodas. They are happy, and I make money on the deal. (Charge for manhours).
Before I start, I give the customer an "idea" of how long it will take, and they sometimes think that it won't take as long. I have them pull a couple of leters, then remove the adhesive. When they see how much work it is, they will pay ususally come around.