Engineered for superior fire safety, environmental safety, and thermal performance across diverse industrial systems.
Why next-generation global projects mandate Halogen-Free Flame Retardant (HFFR) materials.
Traditional elastomeric insulation uses bromine or chlorine-based flame retardants. Under thermal decomposition, these emit highly corrosive and toxic acid gases (such as hydrogen chloride and hydrogen bromide). Our halogen-free solutions prevent acid gas formation, keeping critical evacuation zones clear.
Global standards such as EU RoHS, REACH, and green building programs (LEED, BREEAM) strictly limit volatile organic compounds (VOCs) and hazardous flame retardants. Our halogen-free tubes ensure complete regulatory alignment, ensuring trouble-free global compliance.
Halogen ions directly trigger Stress Corrosion Cracking (SCC) on stainless steel piping systems, especially in industrial hot water and marine applications. Choosing Kingflex halogen-free materials protects expensive alloy pipelines from chemical damage.
Halogen-Free Elastomeric Foam (HF-Elastomeric) represents a critical shift in building safety and material sciences. By replacing traditional halogenated components with high-performance, non-toxic phosphorus or nitrogen-based organic compounds, the material maintains its flexible closed-cell structure while demonstrating superior fire-resistance, minimal smoke opacity, and non-corrosive gas release during fire hazards.
Kingflex Insulation Co., Ltd. is a leading professional manufacturing and trading enterprise specializing in high-performance thermal and cryogenic insulation solutions. Strategically located in Dacheng, China—the recognized capital of green-building materials—our development and production departments operate as an integrated, energy-saving, and eco-friendly ecosystem focused on research, development, and sales.
Guided by our core concept of energy saving and consumption reduction, Kingflex provides end-to-end, customized services. From technical consultation and product R&D to advanced installation guidance and post-sales support, we continuously drive innovation across the global building materials market.
Our collaborative, highly trained team drives Kingflex's continued growth. We have 8 professional engineers in our R&D Department, 6 professional international sales specialists, and 230 skilled production technicians working to deliver top-tier products and services to our clients worldwide.
Kingflex runs 5 advanced automatic assembly lines, generating an annual capacity exceeding 600,000 cubic meters. We are a designated production facility for key governmental and utility bodies, including the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
Leveraging advanced manufacturing technologies to supply high-quality halogen-free insulation tubes globally.
Our state-of-the-art facility uses closed-loop automated weighing and compounding systems. This ensures precise dispersion of non-halogen flame retardants within the NBR/PVC polymer matrix, providing uniform physical properties and fire resistance across every production run.
Equipped with advanced multi-zone temperature controls and customized extrusion tooling, our manufacturing lines consistently achieve a closed-cell rate exceeding 98%. This guarantees stable, low thermal conductivity and exceptional water vapor resistance.
Every roll and tube carries a unique tracking identifier linked to raw material batches, quality control test logs, and production parameters. This end-to-end trace system provides complete visibility, meeting the strict requirements of international industrial projects.
Detailed physical properties and dimensions for engineering procurement.
| Property | Value / Standard |
|---|---|
| Material Blend | Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) |
| Inside Diameter (ID) | 6mm to 114mm |
| Wall Thickness | 9mm to 40mm |
| Density Range | 40 - 55 kg/m³ |
| Service Temp. | -40℃ to 105℃ |
| Moisture Resistance | High moisture resistance factor, fully closed-cell |
| Highlights | Flame retardant, self-extinguishing, reduces pipeline freezing and cracking risk |
| Property | Value / Standard |
|---|---|
| Material Blend | Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) |
| Thickness Range | 6mm to 50mm |
| Density Range | 40 - 55 kg/m³ |
| Service Temp. | -40℃ to 105℃ |
| Closed Cell Rate | Over 98%, ensures uniform foaming and thermal performance |
| Compression Resilience | Over 80% |
| Application Scenarios | HVAC ducts, large-diameter process piping, flat surfaces, storage tanks |
Provides condensation control on chilled water lines and air conditioning ducts without introducing chemical outgassing in microelectronics and pharmaceutical facilities.
Meets strict naval and commercial shipping specifications for low smoke emission and toxic gas levels in tight machinery spaces.
Protects critical computing infrastructure from moisture damage while meeting the fire and smoke safety standards of building codes.
Kingflex products undergo rigorous testing to ensure global compliance.
Our high-performance thermal insulation solutions have successfully met international criteria, including BS 476, CE, REACH, RoHS, UL 94, and ASTM standards. This documentation provides engineering teams and contractors with the safety assurances required for high-occupancy buildings and heavy industrial settings.
Real-world projects and client feedback demonstrating our commitment to quality.
Technical and procurement answers for engineers and sourcing managers.
High-performance elastomeric and mineral wool insulation solutions.
Additional insulation systems manufactured to international standards.
Kingflex
