GlasWeld CrackWeld 2000 Long Crack Windshield Repair Resin CrackWeld 2000 30ml Thicker Resin Designed To Resist Large Temperature Swings Great For More Extreme Environments Scientifically formulated for clear results as well as quality and strength. Independently tested to meet and exceed national and international industry standards, including ANSI (American National Standards Institute), NWRA (National Windshield Repair Association), BSI(British Standards Institution), and AS/NZS (Australia/New Zealand Standards). Formulated to perfectly match different environment and rock chip combinations. Developed to work best with components of all GlasWeld windshield repair kits. Available in a variety of colors and viscosities for every kind of damage.