Our car glass nano repair fluid contains UV glue. It maintains the appearance and security of your vehicle and also avoids the cost of replacing a full windshield in the future which can be expensive. Its usage method is very simple: first clean the area around the damaged car glass, then use a blade to cut the cured film along the damaged length, apply the repair fluid along the cracked area of the glass, quickly cover with the cured film, squeeze out the air between the glass and the cured film, place the car in direct sunlight for 10-30 minutes or use an ultraviolet lamp instead of curing until it's solidified, then peel off the cured film. It can save the inconvenience of long maintenance or service appointments.