Kingflex
Kingflex
Engineered for extreme temperature ranges, structural integrity, and long-term acoustic barrier properties.
In today's commercial HVAC and process engineering sectors, reducing thermal loss and optimizing mechanical insulation systems is critical. Rigid insulation solutions often require specialized tools and multi-component adhesive installations, presenting significant labor and quality-control challenges.
Self-adhesive closed-cell elastomeric foam sheets address these challenges by integrating high-bond pressure-sensitive adhesives (PSA) directly onto flexible rubber foam. This eliminates the need for separate brush-on adhesives on-site, dramatically reducing emissions of volatile organic compounds (VOCs) and cutting installation times by up to 50%.
As global energy conservation regulations (such as ASHRAE 90.1, EN 14304, and the international Energy Conservation Code) become more stringent, thermal designers demand insulation with a stable vapor barrier, permanent adhesion, and superior fire safety performance.
Our self-adhesive thermal insulation sheets deliver outstanding structural and environmental performance.
Class 0 / Class 1 fire-rated under BS 476 testing. Self-extinguishing material prevents flame spread and limits toxic smoke generation in compliance with international fire safety codes.
Closed-cell structure >98% prevents liquid water ingress. Eliminates the risk of Corrosion Under Insulation (CUI) and maintains stable thermal conductivity even in humid environments.
Delivers thermal conductivity (λ) down to 0.034 W/m·K at 0°C. Minimizes convective, conductive, and radiant thermal transfer to maximize HVAC system efficiency.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our research, development, and production facility is located in Dacheng, China, the capital of green-building materials.
Focusing on energy efficiency and carbon footprint reduction as core operating concepts, Kingflex provides advanced, customized insulation systems through tailored consultation, R&D production, and direct post-sale support.
Our History: Established by the Jinwei Group, which possesses over 40 years of industry experience. Founded in 1979, the group was the first major thermal insulation materials manufacturer north of the Yangtze River, paving the way for China's modern insulation sector.
Today, Kingflex runs 5 advanced automatic assembly lines, yielding an annual capacity of over 600,000 cubic meters. We are recognized as a designated production enterprise by major ministries, including the Ministry of Energy and the Ministry of Chemical Industry.
Detailed physical dimensions and performance properties for our key product lines.
| Base Material | NBR (Nitrile Butadiene Rubber) / PVC Blend |
| Thickness Range | 6mm to 50mm |
| Density Range | 40 - 55 kg/m³ |
| Service Temp. | -40℃ to 105℃ |
| Closed Cell Rate | >98% |
| Fire Properties | Flame retardant, self-extinguishing |
| Base Material | NBR (Nitrile Butadiene Rubber) / PVC Blend |
| Thickness Range | 9mm to 40mm |
| Inner Diameter (ID) | 6mm to 114mm |
| Density Range | 40 - 55 kg/m³ |
| Service Temp. | -40℃ to 105℃ |
| Application | HVAC, cold chain, solar & chemical piping |
The core strength of Kingflex lies in our integrated team structure. Together, our technical specialists and operations staff provide consistent, first-class services to global clients.
Our facility houses 8 professional engineers dedicated to material sciences within the R&D department, 6 professional international sales specialists coordinating global supply chains, and 230 trained production workers driving high daily output.
Kingflex thermal insulation solutions are tested and certified to comply with strict international standards, ensuring global safety and reliable operation.
Our products hold certifications for BS 476, CE, REACH, RoHS, UL94, and ASTM. This extensive compliance guarantees that our elastomeric foams satisfy code requirements for commercial building envelopes, heavy industry, marine vessels, and HVAC installations.
Additionally, we maintain a comprehensive quality-management system that ensures 100% batch traceability across all raw materials and production runs.
Providing engineered thermal barrier solutions for critical infrastructure across multiple sectors.
Applied to large duct faces and chilled water pipelines to prevent condensation, absorb structure-borne noise, and maintain system operating temperatures in tropical and high-humidity climates.
Delivers stable insulation for cold chain systems, LNG pipelines, and freezing plants. The closed-cell material remains flexible and thermal-efficient down to -40℃ and lower.
Widely installed in ventilation rooms, mechanical chambers, and hotel ductwork to absorb noise and vibration. Excellent acoustic coefficient properties.
High-quality elastomeric tubes, sheets, and specialized rock wool configurations.
Strategic development paths for next-generation self-adhesive elastomeric sheets.
Replacing petrochemical polymers with renewable bio-polyols to reduce carbon footprints without compromising density, fire retardancy, or thermal resistance.
Formulating new pressure-sensitive adhesives that maintain cross-linking and permanent adhesion in extreme conditions, ranging from -60℃ to 120℃.
Infusing silica aerogels into the cellular matrix to achieve thermal conductivity below 0.028 W/m·K, allowing thinner profiles in tight spaces.
Advanced testing, quality assurance, and high-speed automated extrusion lines.
At Kingflex, customer trust is built on transparency, responsiveness, and consistent product quality. We maintain close communication with our global partners at every step, from custom design requirements to logistics and on-site support.
Expert technical answers to common queries regarding design, installation, and materials.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. Its closed-cell structure makes it exceptionally effective at preventing condensation on cold lines.
Yes, our rubber foam insulation sheets and tubes are highly fire retardant, meeting the BS 476 (Class 0/1), UL94, and CE building code and industrial project safety standards.
Rubber foam is flexible, closed-cell, and highly moisture-resistant, making it ideal for HVAC, plumbing, and low-temperature applications. Rock wool is a high-temperature fibrous material suitable for heavy industrial heat processes and high-heat steam pipes.
Yes, we provide full OEM and ODM services. We customize thickness, width, densities, and adhesive formulations to match your specific engineering layouts.
Our products have passed BS 476, CE, REACH, ROHS, UL94, and ASTM testing, ensuring reliable performance and full compliance with regional regulations worldwide.
Yes. Every production run is barcoded and tracked. We can trace product batches back to their raw material deliveries, compounding sheets, and manufacturing dates.
We produce sheet rolls and panels in thicknesses ranging from 6mm to 50mm, providing target R-values for varied environmental demands.
Under normal design conditions and correct installation, our rubber foam products maintain performance for 10 to 15 years.
Standard and high-performance options for diverse temperature ranges and installation requirements.
