Easy to operate: This windshield repair kit is easy to use and allows anyone to perform permanent air containment repairs on most windshields. Our glass repair kit quickly and efficiently repairs cracks and cracks, bulb eyes, spider webs, stars, and scratches in 20-30 minutes. Upgrade Repair Fluid: The liquid in our car windshield repair kit has been upgraded with a shear strength of up to 25PA, non-yellow resin is five times stronger than glass, and the repair position is not broken. Vacuum design: The unique vacuum design prevents air from entering the gel and affects the repair results. This car windshield repair kit features a vacuum function that quickly removes air from the cracks. The reinforced molded seal head creates a strong pressure that forces the resin into cracks, helping to reduce cracks for better results. Windshield repair effect. Affordable: This DIY glass repair kit includes everything needed to repair the windshield, which restores the windshield to approximately 90% optical clarity. Save time and money and prevent damage. Creates an invisible, undetectable repair in damaged automobile windshields or other laminated glass for windows.(Icludes instructions.) DIY windshield repair kit is designed to fill the air cavity with a strong penetrating adhesive that will bond the loose glass and restore the visibility. The patented design evacuates the air to fill the cavities with specially formulated liquid glass,that distortion and bonds the loose glass preventing the damage from spreading. Note: perfect for use from 60°F to 90°F (15°C to 32°C). If the vehicle is in hot or cold conditions, allow enough time to reach this temperature. The surface must be clean and dry for proper glass repair. Do not allow the resin to come into contact with automotive painted surfaces, wiper or plastic trim as this may cause damage. Not all damage can be repaired to restore full optical clarity. Im