Kingflex
Kingflex
Explore our elite grade of closed-cell nitrile rubber thermal insulation materials optimized for low-temperature control and high-performance durability.
In today's globalized commercial and industrial sectors, the demand for highly efficient thermal energy management and strict climate preservation has elevated materials like Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC) elastomeric blends to critical roles. In environments experiencing rapid temperature swings, deep cryogenics (e.g., LNG shipping, liquid gas processing, and extreme chill water circuits), thermal insulation functions as a foundational barrier preventing condensation, protecting structural integrity, and stopping mechanical corrosion.
As energy costs fluctuate and environmental laws tighten, modern HVAC, chemical, and building industries require high-performing thermal barriers. Conventional insulation types such as mineral wool and fiberglass often fail under damp conditions due to moisture infiltration, leading to mold growth and compromised thermal resistance. Conversely, Kingflex Supreme Nitrile Rubber Insulation features a closed-cell structural architecture. This design delivers a built-in vapor barrier that prevents moisture ingress, keeping thermal conductivity low over a decades-long service life.
Kingflex Insulation Co., Ltd. stands as a premier manufacturing and trading configuration dedicated to the science of advanced thermal insulation systems. Our research and development center and automated manufacturing facilities are strategically located in Dacheng, China—historically recognized as the capital of green building materials. Kingflex operates as an environmentally conscious, energy-efficient enterprise. We combine research and development, pilot manufacturing, testing, and worldwide distribution into a streamlined operation.
Established under the auspices of the Jinwei Group, which boasts a heritage exceeding 40 years since its founding in 1979, Kingflex carries a historic legacy. Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River. Driven by the philosophy of energy conservation and consumption reduction, Kingflex is a leader in modern green thermal engineering.
Our high manufacturing capability rests on 5 large-scale automated assembly lines. Together, they output an annual production capacity exceeding 600,000 cubic meters. This scale and strict compliance have earned Kingflex designated supplier status under China's Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
At Kingflex, technical innovation stems from a specialized research and development team, which features 8 professional materials engineers. Our R&D labs focus on thermodynamic behavior, fire safety optimization, and long-term aging resistant matrices. Working closely with 6 international sales consultants and 230 production personnel, we ensure our global clients receive top-tier thermal systems tailored to their specific requirements.
Engineered for resilience, Kingflex NBR/PVC elastomeric foam delivers thermodynamic control across multiple industries.
Prevents condensation and controls thermal transfer in commercial chilled water pipes and ductwork. Helps achieve energy certifications like LEED and BREEAM globally.
Maintains flexible thermal control down to ultra-low cryogenic ranges. Essential for pipeline setups handling liquid nitrogen, LNG, and cold storage applications.
Resists corrosive chemical environments, exposure to UV rays, and grease. Protects steel pipes against corrosion under insulation (CUI) to maintain structural integrity.
To ensure absolute transparency and verify performance data, the following matrix highlights the thermal, physical, and fire properties of Kingflex Nitrile Rubber products.
| Property Description | Nitrile Rubber Sheet Roll Values | Nitrile Rubber Pipe Values | Standard Reference Method |
|---|---|---|---|
| Material Chemistry | Nitrile Butadiene Rubber / PVC Blend | Nitrile Butadiene Rubber / PVC Blend | ASTM D297 |
| Cellular Structure | Closed-cell (>98% cell density) | Closed-cell (>98% cell density) | ASTM D3576 |
| Density Range | 40 - 55 kg/m³ | 40 - 55 kg/m³ | ASTM D1622 |
| Thermal Conductivity (λ) | ≤ 0.035 W/(m·K) at 0°C | ≤ 0.035 W/(m·K) at 0°C | ASTM C518 / ISO 8301 |
| Water Vapor Resistance (μ) | ≥ 10,000 (μ-factor) | ≥ 10,000 (μ-factor) | EN 12086 / ASTM E96 |
| Service Temperature Limit | -40°C to +105°C | -40°C to +105°C | ASTM C411 |
| Fire Performance Ratings | Class 1 / Class V-0 self-extinguishing | Class 1 / Class V-0 self-extinguishing | BS 476 Part 7 / UL 94 |
| Compression Resilience | >80% recovery | >80% recovery | ASTM D1056 |
A visual look into our state-of-the-art testing equipment, ensuring that every batch complies with strict global standards.
Tested and verified by global verification bodies for fire, chemical safety, and thermal limits.
Our employees are exceptional individually, and together they make Kingflex an dynamic and rewarding workplace. The Kingflex team is a closely connected, talented group united by a clear vision: delivering consistently high-quality service to our clients.
By combining rigorous factory engineering, localized project consultations, and custom fabrication services, we ensure our global partners achieve reliable performance in their thermal systems. From drafting specifications to providing on-site insulation installation guidance, our team supports projects from design to completion.
Kingflex rubber foam insulation installed across major projects globally, demonstrating reliability in diverse climates.
Technical dimensions and structural properties of our principal elastomeric lines.
Kingflex Standard Dimensions:
Material Matrix: NBR/PVC blend
Available Thickness: 6mm - 50mm
Density: 40 - 55 kg/m³
Temperature Range: -40℃ to +105℃
Central air conditioning ductwork, large commercial roofs, chemical processing tanks, district cooling piping systems, and acoustic absorption panel linings.
Kingflex Standard Dimensions:
Material Matrix: NBR/PVC blend
Thickness Limit: 9mm - 40mm
Inner Diameter (ID): 6mm - 114mm
Density: 40 - 55 kg/m³
Temperature Range: -40℃ to +105℃
Commercial chiller water systems, process pipe networks in petrochemical facilities, industrial solar heating pipes, and residential plumbing insulation.
Select from our comprehensive list of thermal solutions designed for general HVAC use, cryogenic storage, and heavy industrial plants.
Kingflex elastomeric closed-cell insulation materials are optimized for high-performance applications, offering reliable insulation under demanding thermal conditions:
Maintains physical elasticity and thermal barrier properties down to cryogenic ranges, preventing thermal shocks and mechanical failure on piping configurations.
Protects water circuits from surface condensation in hot, humid climates. Prevents dripping that can compromise drywalls and electronic systems below.
Reduces heat loss in dual-temperature steam piping systems up to 105°C, lowering overall boiler energy usage and greenhouse gas emissions.
To satisfy rigorous international codes, Kingflex products undergo verification testing for compliance with fire safety, environmental health, and quality standards:
Certified Class 1 flame spread rating. The material controls surface flame propagation, helping maintain containment integrity during building emergencies.
Free of heavy metals, polybrominated biphenyls (PBBs), and hazardous dust. Safe for cleanrooms, schools, and medical center installations.
Every shipment includes batch-specific chemical tracking identifiers, ensuring transparency from raw material processing to final inspection.
Thermal insulation design is shifting toward smart, bio-compatible, and low-footprint configurations. Kingflex's engineering team is developing solutions designed for these key industrial changes:
Verified communications showing our responsive technical assistance and commitment to client satisfaction.
Find answers to technical inquiries regarding elastomeric closed-cell foam insulation, material compliance, and installation.
Examine our specialized cryogenic and mechanical system options designed for demanding environments.
