Fiberglass/Plastic Prep:
Before applying graphics, the surface must be perfectly clean (no oils or dirt) 
This can be accomplished using good dish soap (Dawn) and water, followed by an alcohol wipe down.
Once graphics are applied, use a heat gun(blow dryer)
to warm them up and work out any wrinkles you may have.

Material:
10 mil Standard: All of our graphics packages are built on a 6 mil base vinyl and a 4 mil HIGH gloss laminate.  This extra thick clear cover will stand up to regular use and lays down very nicely.