Hi, I paint custom bikes (airbrush) and somtimes get repair jobs for problems in artwork. I just picked up a tank with a blister in the clear its in the middle of the artwork. The art work is not disturbed and I'd rather not have to sand it off and redo it. The only thing I can think of doing is poking a little whole in the clear, pushing the air out, then injecting it with clear and using a rubber clamp to hold it down till it drys. (if it ever drys w/ no exposure to air) Does any one have any expeience with anything like this???