The liquid glass filler repair can quickly and effectively repair small chips, bulls-eye, star-shaped, half-moon cracks. Minimizes the appearance of chips and cracks and stops them from spreading; Advanced resin formula, Good for multiple repairs Easy to Use: First, Clean and dry the windshield glass surface and then squeeze the resin into the cracks; Secondly put on the cured film , then quickly dry and solidify under ultraviolet light 5-10 minutes. Finally scrape off the residual resin with the Blade. Safely & Widely Use: this repair resin is 100% safe to use. Its suitable for all types of laminated windscreen chips and cracks repairment, such as loophole, cobwebs, bulls-eye, half-moon cracks, star-shaped damage, long line crack/scratch and combination damage.