Our three-piece set for car windshield care is carefully formulated with propylene monomer and phenyl dimethyl ether. Designed specifically for quickly filling small cracks on the windshield and restoring a clear view. The usage method is extremely convenient: Clean and dry the damaged area of the windshield. Drop the windshield repair liquid onto the crack of the glass. Stick the cured film and let it cure quickly in the sun for 5 minutes. Finally, use a blade to clean the remaining resin on the surface. And it can significantly enhance the strength of the glass and effectively prevent crack propagation.