Kingflex
Engineered for extreme performance. Explore our primary product lines certified for energy efficacy and absolute structural resilience.
How large-scale developers and HVAC contractors mitigate risk, ensure thermal efficiency, and optimize lifetime ROI.
For modern engineering projects, procurement of thermal insulation is no longer just about calculating unit cost; it is a critical strategy to ensure lifetime structural stability and dynamic energy conservation. B2B global procurement teams face complex challenges, including the demand for strict zero moisture permeation in high-humidity HVAC environments, and reliable elasticity in ultra-low cryogenic systems (-196°C to -40°C).
By shifting to advanced closed-cell NBR/PVC structures with a closed-cell rate exceeding 98%, engineers successfully eliminate "thermal bridging" and protect infrastructure from moisture ingress that leads to corrosion under insulation (CUI). As regulatory authorities globalize standards like ASTM E84, BS 476, and EN 13501, purchasing offices prioritize suppliers that offer complete system tracking, from raw polymer synthesis to final pipe extrusion.
Systematic design blueprints that solve systemic energy losses across various global economic sectors.
Massive commercial hubs, high-rise office towers, and medical institutions depend on central air conditioning. Our elastomeric NBR/PVC foam pipes prevent external condensation on cold water lines, keeping indoor air clean while maintaining structural integrity.
For processing chemical materials and liquid energy transport, our ultra-low temperature cryogenic systems provide secure insulation barriers. These resilient systems withstand structural vibrations and intense temperature fluctuations.
High-density acoustic panels and sheets reduce environmental noise in mechanical spaces, generators, and public buildings. They balance thermal protection with effective acoustic absorption.
Understanding why Kingflex NBR/PVC chemistry outperforms standard insulation materials.
Our foam material is constructed via a high-temperature expansion process, creating millions of micro-cells. This formulation features high resistance to aging, oil, ozone, and UV rays.
With an elastic recovery rate of over 80% under compression, the material maintains its dimensional stability over a 10 to 15-year service life, preventing thermal leaks at joints and bends.
| Property Parameter | NBR/PVC Elastomeric Foam Value | Testing Standards & Methods |
|---|---|---|
| Density range | 40 - 55 kg/m³ | GB/T 6343 / ASTM D1622 |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0°C | GB/T 10294 / ASTM C518 |
| Moisture Resistance Factor (μ) | ≥ 10,000 | GB/T 17146 / DIN 52615 |
| Service Temperature Limit | -40°C to +105°C (Up to -196°C with cryogenic systems) | GB/T 17794 / ASTM C534 |
| Fire Safety Rating | Class 1 / Class 0 / V-0 | BS 476 Part 7 / UL 94 / EN 13501 |
Decades of manufacturing expertise, modern production facilities, and global compliance.
Established as a key venture of the Jinwei Group—which started in 1979 as the first thermal insulation manufacturer north of the Yangtze River—Kingflex Insulation Co., Ltd. has grown into a leading manufacturing and trading company. Based in Dacheng, China, we operate 5 automated assembly lines with an annual output exceeding 600,000 cubic meters.
As a designated manufacturer for energy and power authorities, we support projects in more than 66 countries. We provide consulting, custom R&D, precision manufacturing, and installation support to deliver reliable energy-saving solutions.
Our team includes 8 engineers and 230 specialized production staff focused on material optimization and fire safety testing.
Our systems comply with global quality standards, holding certifications for CE, ASTM, UL 94, REACH, ROHS, and BS 476.
We provide full thermal, cold, and acoustic systems designed to minimize overall project energy costs.
Our laboratories and certified products meet international quality and safety benchmarks.
Select configurations for sheet rolls and insulated pipes tailored to your project requirements.
Base Chemistry: Premium Elastomeric NBR/PVC polymer blend.
Common Uses: Duct insulation for HVAC units, wall soundproofing, ceiling thermal barriers, industrial storage tanks, and refrigeration chambers.
Base Chemistry: Co-extruded Elastomeric NBR/PVC compound.
Common Uses: Chilled water pipes, commercial air conditioning loops, industrial process lines, and solar water systems.
Proven performance in major commercial and industrial infrastructure projects.
Actual project feedback and logistics updates showing our commitment to reliable service.
Find answers to technical and procurement questions about our foam insulation systems.
Our elastomeric rubber foam is primarily used for central HVAC duct systems, chilled/hot air conditioning pipes, building envelopes, industrial process piping, cryogenic piping, and acoustic panels to prevent energy loss and control condensation.
Yes, Kingflex rubber foam insulation is formulated with halogen-free flame retardants. It meets BS 476 Parts 6 & 7 (Class 0 and Class 1), UL 94 V-0, and EN 13501 fire safety standards.
Rubber foam has a flexible, closed-cell structure with a high water vapor resistance factor (μ ≥ 10,000), making it ideal for HVAC and cold insulation. Rock wool is a fibrous material best suited for high-temperature industrial pipelines and structures requiring high-temperature fire stops.
Yes, we offer full OEM services. We can customize dimensions, thicknesses (from 6mm to 50mm), internal pipe diameters (6mm to 114mm), and protective layer laminations (such as aluminum foil or self-adhesive backings).
Our products are certified under BS 476, CE, REACH, ROHS, UL 94, and ASTM standards, ensuring compliance across different regional markets.
Yes. We implement an ERP tracking system. Every production run is marked with batch codes that link directly to raw polymer testing, production line logs, and quality check sign-offs.
We manufacture standard NBR/PVC sheet rolls in thicknesses ranging from 6mm to 50mm, matching international standards for insulation performance.
Under normal operational conditions and when properly installed according to our guidelines, the typical service life ranges between 10 and 15 years.
Browse our range of closed-cell foam sheets, high-temp tubes, and system accessories.
Our manufacturing facility maintains consistent stock levels to support project timelines.
