KINGDELI High Temperature Sealant Silicone

KINGDELI high temperature sealant silicone delivers reliable, long-lasting heat resistance for industrial and domestic sealing. Backed by 27+ years, global certifications, and OEM/ODM support.
Product Information

KINGDELI High Temperature Sealant Silicone — Reliable Heat-Resistant Seal

KINGDELI high temperature sealant silicone is engineered for demanding applications that require durable, heat-resistant sealing. Formulated to withstand elevated temperatures while maintaining strong adhesion to metals, glass, ceramics, and many plastics, this high-temp silicone sealant gives professionals and DIYers the confidence to seal ovens, furnaces, engine components, HVAC systems, and industrial equipment.

Key Features

  • Excellent heat resistance: stable performance at high temperatures for long service life.
  • Strong adhesion: bonds to metal, glass, ceramic and commonly used substrates.
  • Durable and weatherproof: resists aging, moisture and thermal cycling.
  • Low VOC & neutral cure options: safe for indoor use and compatible with many materials.
  • Easy to apply: gun-applied paste cures to a flexible, resilient seal.

Applications

Ideal for a wide range of uses where heat and durability matter, including:

  • Oven doors, heating elements and cookers
  • Automotive exhaust and engine components
  • Industrial furnaces, boilers and kilns
  • HVAC systems, ducting and heat exchangers
  • Appliance assembly and repair

Why Choose KINGDELI

Since 1998, KINGDELI has delivered proven performance across the sealants and adhesives industry. Our 66,000 m² automated facility in Foshan, China, produces over 100,000 tons annually, ensuring stable supply. Recognized as a National High-Tech Enterprise and contributor to GB/T 29755-2013, KINGDELI meets ISO 9001, ISO 14001, CE and ASTM standards. With 27+ years of experience and presence in 50+ countries, we provide OEM/ODM support, professional technical service, and sustainable low-VOC formulations.

Simple Use & Technical Support

Surface should be clean, dry, and free of grease. Apply with a standard caulking gun, tooling the bead within recommended skin time. Cure time varies with temperature and humidity—KINGDELI offers technical guidance and custom formulations to meet specific heat-resistance requirements.

For reliable, heat-resistant sealing backed by global certifications and expert support, choose KINGDELI high temperature sealant silicone. Contact us for samples, datasheets, and OEM/ODM options.

Picture Show

  • HY-3300 Weatherproof Neutral Silicone Sealant

Certificate display

  • ASTM-C020-2018-HY3300_00

    ASTM-C020-2018-HY3300_00

  • VOC

    VOC

  • Supplier-Assessment-Report-Foshan-Kingdeli-Viscose-Co.,-Ltd._00

    Supplier-Assessment-Report-Foshan-Kingdeli-Viscose-Co.,-Ltd._00

FAQ

What are typical applications?

Typical applications include sealing and bonding for:
✓Expansion and settlement joints
✓Roof cracks and structural walls
✓Underground garages and basements
✓Industrial floors (epoxy and painted surfaces)
✓General indoor and outdoor sealing and positioning

Is HY925 environmentally friendly?

Yes. It contains no corrosive components, does not pollute substrates, and is formulated to be environmentally friendly.

Can the cured sealant be painted over?

Yes. Once cured, it is compatible with water-based paints and coatings.

How should the sealant be stored?

Store in a cool, dry place below 27℃. Avoid direct sunlight and keep the container sealed before use.

Let's talk
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Foshan KINGDELI Viscose Co., Ltd.
No. 28, Mingfu Road, Mingcheng, Gaoming, Foshan, Guangdong, China.
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Partner with Kingdeli, a global manufacturer of sealants, adhesives, and coatings.
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+86 188 2594 6249

Address

No. 28, Mingfu Road, Mingcheng, Gaoming, Foshan, Guangdong, China.

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