GE, Advanced Silicone 2 Kitchen & Bath Sealant, Clear, 2.8 oz. Squeeze Tube. A high-performance, 100% silicone and 100% waterproof sealant ideal for areas prone to water exposure. Advanced silicone 2 kitchen and bath sealant is permanently flexible with 40% more flexibility than class 25 sealants and has 5x stronger adhesion than silicone 1* sealant. Its 30-minute water-ready formula offers 10-year mold-free product protection to protect cured sealant against mold and mildew growth. Backed by a lifetime guarantee.