KINGDELI Hi-Temp Silicone Sealant — Heat-Resistant, Long-Lasting
KINGDELI Hi-Temp Silicone Sealant — Reliable Heat-Resistant Seal
KINGDELI Hi-Temp Silicone Sealant is engineered to provide durable sealing and bonding where high heat and long-term performance matter. Designed for both professional and DIY use, this high-temperature silicone delivers flexible adhesion, weather resistance, and low-VOC options for safer indoor and industrial applications.
Key Benefits
- High temperature resistance: Formulated to withstand extreme heat (up to 300°C in many applications), ensuring lasting seals under thermal stress.
- Durable flexibility: Remains elastic after curing to absorb vibration and thermal expansion without cracking or pulling away.
- Low odor and low-VOC: Safer for indoor use and in sensitive environments when using our low-VOC formulations.
- Strong adhesion: Bonds to metals, ceramics, glass, and many coated surfaces for versatile repairs and installations.
- Easy application: Smooth flow, controlled tooling, and fast skin formation reduce job time and improve finish quality.
Typical Applications
Ideal for oven seals, exhaust systems, HVAC flanges, industrial equipment, kiln maintenance, and any joint exposed to high temperatures. Also suitable for automotive, electrical and factory maintenance tasks where a heat-resistant silicone sealant is required.
Why Choose KINGDELI
Since 1998, KINGDELI has stood as a global leader in high-performance sealants and adhesives. Our 66,000 m² automated facility and annual capacity of over 100,000 tons ensure steady supply. As a National High‑Tech Enterprise and contributor to national standards, KINGDELI products meet ISO 9001, ISO 14001, CE and ASTM requirements. This expertise guarantees you a trusted hi temp silicone sealant backed by professional technical support and OEM/ODM services.
Ordering & Support
Available in cartridges and bulk sizes. For best results, follow surface preparation and curing guidance on the product label. Contact KINGDELI technical service for application advice and specification sheets. Choose KINGDELI hi temp silicone sealant for proven heat resistance, consistent quality, and global reliability.
Keywords: hi temp silicone sealant, high-temperature silicone sealant, heat resistant silicone, KINGDELI sealant, industrial silicone adhesive
Detailed display
Qualification Certificate
Supplier-Assessment-Report-Foshan-Kingdeli-Viscose-Co.,-Ltd._00
ASTM-C020-2018-HY3300_00
CE-Certificate
Frequently Asked Questions
Can the cured sealant be painted over?
Yes. Once cured, it is compatible with water-based paints and coatings.
What standards does HY-3300 comply with?
HY-3300 is tested and complies with JC/T882-2001 (125HM) and ASTM C920-18 standards.
What is the shelf life of the product?
The shelf life is 12 months when stored in unopened original packaging under recommended storage conditions.
Is this sealant corrosive to metals or sensitive materials?
No. The neutral-curing formulation is non-corrosive, making it safe for use on metals and other sensitive substrates.
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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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