Kingflex
Direct supply from industrial-grade manufacturing facility for global safety and eco-conscious engineering specs.
In modern civil engineering, marine architecture, and HVAC design, standard insulation materials are increasingly scrutinised due to toxic smoke propagation in fire scenarios. Halogenated compounds (which include Chlorine, Bromine, Fluorine, and Iodine) are commonly added as flame retardants. However, under thermal decomposition, these materials generate toxic, corrosive gases like hydrogen chloride (HCl) and dense black smoke, causing severe risks to life safety and structural durability.
Halogen-Free Elastomeric Insulation (HF-Elastomeric) provides a highly stable alternative. By utilizing advanced phosphorus-nitrogen or metal hydroxide fire-retardancy chemistry in combination with synthetic rubber matrices, these materials eliminate toxic halogen releases without compromising on fire safety performance, thermal properties, or installation ease.
Kingflex Insulation Co., Ltd. represents a highly professional combination of R&D expertise and integrated bulk supply lines. Our main facility is strategically situated in Dacheng, China—historically celebrated as the premium capital of environmental building systems.
Operating with a foundational core vision of carbon reduction and optimized energy efficiency, Kingflex integrates consultation, precision synthesis, installation advice, and rigorous post-sale tracking to deliver structural insulation systems globally. Backed by Jinwei Group's rich legacy dating back to 1979, we leverage over 40 years of engineering expertise to maintain global supply continuity.
Explore standard physical properties engineered for long-term thermodynamic stability under critical conditions.
Dimension Spec: Thickness ranges from 6mm to 50mm using advanced NBR/PVC blend matrices. Average density operates between 40-55 kg/m³, accommodating temperatures ranging from -40℃ to 105℃.
Key Benefit: Excellent even foaming (closed-cell rate >98%). Delivers a high resistance factor against moisture ingress with a minimal thermodynamic drift over a 15-year lifecycle.
Dimension Spec: Wall thickness options run between 9mm to 40mm, with Inner Diameters (ID) covering 6mm up to 114mm. Engineered specifically for complex structural piping layouts.
Key Benefit: Uniform density profile from advanced automated extrusion. Compression resilience remains above 80%, providing critical insulation for industrial chiller tubes.
Non-Halogen Formula: Synthesized zero-halogen elastomeric composition avoids stress corrosion cracking on sensitive materials, such as copper piping or stainless steel lines.
Eco Certs: Outright compliance with European REACH & RoHS standards, offering zero VOC degassing for sensitive interior construction environments.
| Property Parameter | Reference Metric (Halogen-Free Spec) | Standard Testing Methods |
|---|---|---|
| Closed-Cell Rate | ≥ 98% | ASTM D2856 |
| Thermal Conductivity | ≤ 0.034 W/(m·k) at 0℃ | ASTM C518 / ISO 8301 |
| Moisture Resistance Factor (μ) | ≥ 10,000 | BS EN 12086 |
| Fire Safety Rating | BS 476 Part 7 Class 1 / UL 94 V-0 | BS 476 / UL 94 |
| Corrosiveness | Chemically Neutral - No Corrosion Acid Gas | DIN 1988/7 |
| Density range | 40 - 55 kg/m³ | GB/T 6343 |
How procurement professionals and design offices implement Kingflex Halogen-Free systems across key sectors.
Chilled water systems, condensate networks, and ventilation trunk lines. High-humidity areas rely on Kingflex closed-cell technology to completely eliminate condensation, protecting adjacent building materials from mold growth.
LNG tankers, industrial gas logistics, and ultra-low temperature chemical reactions. Specially formulated Kingflex elastomers retain elasticity down to cryogenic ranges, avoiding structural cracking caused by thermal shock.
Naval architecture, cargo vessels, oil platforms, and refineries. Where fire exposure presents severe containment risks, toxic halogen gases are prohibited. Our materials ensure vital smoke safety and corrosion protection.
To satisfy demanding architectural safety guidelines and global environmental frameworks, Kingflex products undergo verification testing by world-recognized safety bodies. Our manufacturing lines maintain strict process logs, offering end-to-end material traceability from raw chemical components to final site delivery.
Great products originate from dedicated human ingenuity. Kingflex maintains a robust staff of 230 skilled production technicians, supported by 6 dedicated international export specialists who manage global order fulfillment, and 8 professional research engineers in our R&D facility.
This collaborative environment allows us to optimize the mechanical strength of our foams, develop high-performance halogen-free variations, and customize physical parameters (such as targeted flame retardancy and structural dimensions) according to unique regional climates.
View how Kingflex products have been specified in infrastructure projects globally, demonstrating durability and reliability.
We value direct communication and prioritize addressing the technical requirements of international engineering firms. Over the years, our dedication to reliability has helped build long-term relationships with clients across Europe, Southeast Asia, and the Americas.
"Kingflex's compliance documentation made our project approvals very straightforward. The thermal conductivity tests held up perfectly in commissioning, and the lack of halogenated gas release was crucial for our rail terminal project specifications."
- Chief Mechanical Consultant, Singapore Metro Expansion
Comprehensive answers to critical technical questions regarding specification, certification, and mechanical application.
It is primarily designed for HVAC air ducts, refrigeration pipelines, building thermal envelopes, and industrial process cold insulation. Its closed-cell structure makes it highly effective at preventing moisture condensation on chilled water pipes and managing heat transfer in dynamic climate conditions.
Yes, our rubber foam insulation products are formulated with fire retardants to meet stringent construction safety codes, achieving BS 476 Part 7 Class 1 and UL 94 V-0 flame-retardant certifications. Under flame contact, the material self-extinguishes and limits flame spread.
Rubber foam is a highly flexible, closed-cell material that is inherently moisture-resistant, making it ideal for refrigeration, HVAC systems, and environments prone to condensation. In contrast, rock wool is an open-fiber mineral insulation suited for very high-temperature industrial processes and dry fire-barrier assemblies, though it requires an external vapor barrier to prevent moisture absorption.
Yes, we provide OEM and ODM services. We can customize dimensions, target wall thicknesses, density profiles, and laminates (such as reinforced aluminum foil) to meet the design criteria of specific industrial projects.
Our products are tested and certified under international standards, including BS 476, CE, REACH, RoHS, UL94, and ASTM. This documentation simplifies compliance reviews for large-scale municipal, green building, and marine projects.
Yes, all Kingflex shipments feature batch traceability. From raw chemical formulation through the automated foaming lines to final packaging, each production run is logged to verify consistent quality and density control.
Our manufacturing lines produce sheet rolls in thicknesses ranging from 6mm up to 50mm, allowing engineering teams to specify the correct thickness for their thermal performance and condensation-control requirements.
Under standard operating conditions within our specified temperature limits (-40℃ to 105℃), Kingflex elastomeric insulation has an expected service life of 10 to 15 years, during which it maintains stable thermal conductivity and moisture resistance.
Navigate directly to our main product divisions to find the right materials for your project specs.
High-performance closed-cell formulations designed for industrial and commercial thermal protection.
