Admittedly , the Eterna bond is an experiment. It may be a while before I am sure of the long term results. In the short term I can report no problems driving 80 mph and a sidewind so bad coming back home from Joshua Tree that I was driving about 25 mph. I would guess wind gusts of 60 mph. I was very nervous but panel held tight. Tough stuff. Where I live in San Bernardino the Santa Anna winds can gust over 100 mph. I guess the real test will be in the fall. My last van with the Sportsmobile poptop had a solar panel attached with 4 brackets and several strips of Eterna Bond. Worked great.