9900 Waterproof Sealant comes with a 1-year shelf life; for best results, apply only on clean, dry surfaces within its valid period for consistent sealing effectiveness. Silicone Waterproof Sealant 9900 boasts a premium eco-friendly, low-odor formula with zero impurities, making it suitable for both indoor and outdoor application environments. 9900 Silicone Sealant Waterproof maintains long-lasting elastic sealing performance, resisting weather and stains while adapting to temperatures from -10°C to 45°C. Neutral silicone-based 9900 Sealant Waterproof features a viscosity range of 180000-200000 mPa·s, density of 1.50, and shear strength of 1.0, ensuring reliable performance for all sealing needs. 9900 Waterproof Sealant high-strength bonding with stable physical properties, including optimal hardness and 300% elongation, ensuring secure adhesion for diverse sealing scenarios., Weight: 1.653466965 Pounds, Manufacturer: Ameble_E77_8142456