KINGDELI Marine Sealant Silicone — Reliable Neutral-Cure Boat Sealant
Product Overview
KINGDELI Marine Sealant Silicone is a high-performance, neutral-cure marine silicone designed for long-lasting waterproofing on boats, decks, windows, and through-hull fittings. Developed by KINGDELI—an industry leader since 1998 with a 66,000 m² production facility and annual capacity over 100,000 tons—this marine sealant combines proven reliability with low-VOC formulations and professional technical support.
Key Benefits
Superior Waterproofing & Flexibility
Our marine silicone sealant forms a permanent elastic seal that resists saltwater, UV rays, and weathering. It maintains flexibility under thermal movement to prevent cracks and leaks even in harsh marine environments.
Safe Neutral Cure
Neutral-cure chemistry means low odor and minimal corrosion risk to metals and sensitive electronics—ideal for aluminum, fiberglass, gelcoat, wood, and painted surfaces commonly found on boats.
Trusted Quality & Certification
KINGDELI is a National High-Tech Enterprise and a contributor to GB/T 29755-2013. Our marine sealant meets international standards including ISO 9001, ISO 14001, CE, and ASTM. With sales in 50+ countries and over 27 years of experience, KINGDELI stands for expertise and reliability.
Where to Use
Recommended applications include sealing deck fittings, hatches, windows, portholes, transducers, and other joints exposed to marine conditions. It bonds well to common boat materials and is ideal as a waterproof marine sealant for maintenance and new construction.
Product Features
- Neutral cure, low-VOC formulation
- Excellent adhesion to fiberglass, metal, wood, and painted surfaces
- UV and saltwater resistance for long-term performance
- Non-corrosive to metals and marine equipment
- Available in multiple colors; OEM/ODM support
Why Choose KINGDELI
Backed by a state-of-the-art facility, automated production lines, and robust technical service, KINGDELI delivers consistent quality and supply. We combine manufacturing scale with professional support to ensure your marine projects stay sealed and secure.
For reliable boat sealing and waterproofing, choose KINGDELI Marine Sealant Silicone—trusted by professionals worldwide.
Product Images
Our Certifications
Supplier-Assessment-Report-Foshan-Kingdeli-Viscose-Co.,-Ltd._00
ASTM-C020-2018-HY3300_00
CE-Certificate
FAQ
What colors are available?
Standard colors include grey, golden, silver black, and grey. Customized colors are available upon request.
Can HY-638 be used in areas exposed to water?
HY-638 is not recommended for total or continuous water immersion. It should also not be applied to wet, damp, or frosted surfaces, as these conditions can negatively affect adhesion and curing.
Can this product be used for both bonding and sealing?
Yes. It is engineered for both structural bonding and sealing, offering strong adhesion combined with long-term flexibility.
How do I clean tools and excess sealant?
Uncured sealant can be easily cleaned with water. Cured material must be removed mechanically.
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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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