Guangyi Weather Resistant Neutral Silicone Sealant, for Construction/Glass/Window/Door. 10 Years Warranty: Comprehensive warranty coverage for 10 years on product performance and durability. Neutral Curing System: Features a neutral curing mechanism suitable for sensitive materials without corrosion. Waterproof & Weatherproof: Provides excellent waterproofing and resistance against weathering and aging. OEM/ODM Service: Full customization available including from samples, designs, and flexible options. Free Sample Available: Customers can request free samples to test product quality before bulk orders. ISO9001 Certified: Manufacturing process certified by ISO9001-2015 for consistent quality control. Fast Delivery: Standard delivery within 14 days; OEM orders delivered in 20-35 days. Multi-Color Options: Available in different colors to match various construction and design requirements.