I think you will be OK. I have never heard of it not working on "typical" hobby materials after working 35 years at a local hobby shop and selling gallons of the stuff. I think some use it on clear plastic like canopies because when it kicks off, it doesn't fog the plastic.. It doesn't give off the fumes that bother some people either.If it's a long drive back to the hobby shop, and you have alternatives, just tuck it away along with the receipt and exchange it on your next trip, as long as you haven't opened it, of course.
Type at you later,
Dan McEntee