This is the stuff that can make or break your project! There are a variety of things to look for with contact spray glue. First is "open time", or how long you have after glue application before it's glued. Sometimes you need a few extra seconds to re-line up your project before it bonds. Final adherence strength and, the most overlooked feature by a novice, heat resistance. Cheaper contact spray glue you get in your local Home Depot can liquify in the high temperatures that occur in a closed up vehicle in hot weather. Your project can simply fall apart! Upholsterers and car stereo installers rate our contact spray glue as EXCELLENT in all categories!