Joint Sealant Neutral Silicone Sealant for Door&Window. Neutral Curing Formula: One-component neutral curing sealant with high bonding strength and strong displacement resistance. Excellent Weather Resistance: Resists UV, ozone, oxidation, and extreme temperatures without pollution after curing. Versatile Compatibility: Bonds well with glass, ceramics, tiles, metal, aluminum, and concrete without undercoating. Waterproof & Elastic: Provides excellent water tightness and good extensibility for durable sealing applications. OEM Service Available: Supports OEM customization with 15 years of experience in silicone sealant manufacturing. ISO9001 Certified: Manufactured under ISO9001 quality management system with third-party inspection accepted. Fast Delivery: Standard delivery within 15 workdays; annual production capacity of 100,000 MT. Free Samples: Free samples available for testing compatibility and adhesion before bulk orders.