Abstract: The invention relates to repair devices for repairing impact resistant glass such as windshields and vertical glass. The repair device can be used to repair many types of damage to glass including cracks, bulls-eye breaks, star breaks, and angle wing breaks. For repairing breaks, the repair device removes air from the break before the resin is applied to the air-evacuated break. For repairing cracks, the repair device pushes resin into the crack while the device is slid along the crack. The repair device has a piston assembly including a piston, a piston casing, and a piston casing receiver; a mounting bracket; and a suction unit, including a manual vacuum pump. A resin is loaded into the piston assembly and delivered to the break or crack by hydraulic pressure, pneumatic pressure, and/or vacuum mode.