ibd LED/UV Builder Gels are easy to use, self-leveling, and require very little filing. With ibd LED/UV Builder Gels, the technician can work longer hours to achieve the ideal application because they cure on demand. LED/UV Builder gels are extremely heat-sensitive and smell-free. They don't contain toluene or formaldehyde. Cure for 60 seconds with an LED lamp and 3 minutes with a UV lamp. When not in use, keep the top off. Avoid storing in direct sunlight. Di-HEMA Silica, Trimethylolpropane Trimethacrylate, Dipentaerythrityl Pentaacrylate, Ethyl Trimethylbenzoyl Phenylphosphinate, Calcium Carbonate, Benzoyl Isopropanol, Polyester-3, Rosin (Colophonium, Colophane), Aluminum Hydroide, Iron Oxides (CI 77491(, Red 6 (CI 15850), Titanium Dioxide (CI 77891)