KINGDELI Silicone Waterproof Sealant — Durable, Low-VOC Protection
Product Overview
KINGDELI Silicone Waterproof Sealant is a High Quality, neutral-cure silicone designed for long-lasting waterproofing and flexible joint sealing. Formulated for both interior and exterior use, it bonds well to glass, aluminum, ceramic, tile, painted surfaces and many plastics. Manufactured in our 66,000 m² facility with an annual capacity exceeding 100,000 tons, this sealant meets international quality and environmental standards including ISO 9001, ISO 14001, CE and ASTM.
Key Features
- Waterproof and weather-resistant: maintains a watertight seal under rain, temperature change and UV exposure.- Flexible and durable: maintains elasticity to absorb joint movement without cracking.- Low-VOC and neutral cure: safe for indoor use, minimizes odor during application.- Strong adhesion: effective on common construction materials without primer in many cases.- Fast skin formation and reliable curing: suitable for professional and DIY jobs.
Applications
Ideal for sealing windows and doors, bathroom and kitchen joints, shower enclosures, exterior façades, curtain walls, skylights and glazing. KINGDELI silicone waterproof sealant also performs well for metal and stone bonding, as well as general gap filling and weatherproofing tasks.
Why Choose KINGDELI
Since 1998, KINGDELI has been a trusted name in high-performance sealants and adhesives. As a recognized National High-Tech Enterprise and a contributor to GB/T 29755-2013, we combine technical expertise with large-scale, automated production to ensure consistent product quality. Our products are supplied to 50+ countries and supported by professional OEM/ODM services and technical assistance.
Simple Application Tips
Clean and dry the surface, apply backing tape if needed, cut nozzle to desired bead size, and extrude sealant evenly. Smooth the joint within the skin time using a tool or finger. Allow full cure per product instructions (typical cure rate depends on temperature and humidity).
KINGDELI Silicone Waterproof Sealant gives you professional-grade performance with low odor and proven reliability—ideal for contractors and homeowners who demand durable, safe and effective waterproof sealing solutions.
Product Image
Certifications
ISO-2023-2026-EN
CE-Certificate
CE
Question you may concern
Can the cured sealant be painted over?
Yes. Once cured, it is compatible with water-based paints and coatings.
What temperature range can HY939 withstand?
HY939 performs reliably in a wide temperature range from -60 °C to 350 °C, making it suitable for both high-temperature and low-temperature environments.
What is the recommended working temperature?
Application can be done within 4℃ to 40℃. After curing, the sealant performs well from -50℃ to 100℃.
What colors are available?
Standard colors include black, white, and gray. Custom colors can be produced upon request.
If you have any questions about our goods or services, please feel free to contact us.
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Innovating with Integrity, Bonding the World
Since 1998, KINGDELI has delivered trusted, sustainable sealant solutions that connect industries and inspire progress worldwide.
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