Select from our internationally certified range of industrial foam, tubes, sheets, and cryogenic insulation systems.
The global construction paradigm is shifting rapidly toward carbon-neutral designs and high-efficiency building envelopes. In this context, cavity wall insulation acts as a primary barrier against thermal bridging, condensation, and structural heat loss. By introducing high-performing elastomeric rubber foam materials into cavity layers, engineers and contractors achieve long-term building durability and exceptional energy savings.
Traditional fibrous insulation materials (such as mineral wool or fiberglass) are highly susceptible to moisture degradation inside wall cavities. When moisture enters the system, fiber structures lose their thermal resistance. However, our advanced NBR/PVC closed-cell rubber foam insulation sheets and tubes provide a built-in vapor barrier, safeguarding buildings from thermal leaks, moisture accumulation, mold, and rot.
As international energy codes and environmental certifications (such as LEED, BREEAM, and DGNB) grow more stringent, procurement officers are prioritizing elastomeric cavity solutions. Investing in premium closed-cell materials ensures long-term compliance, exceptional thermal properties, and reduces maintenance costs over a 15-year building lifecycle.
Key requirements and challenges faced by global industrial procurement managers seeking high-performing insulation materials.
Industrial operators require materials that comply with international safety certifications, including BS 476, CE, REACH, ROHS, UL94, and ASTM. Testing for flame spread, smoke toxicity, and chemical content is vital to project approval.
Standard sizing often leads to material waste. Project engineers seek customizable thickness (6mm to 50mm) and specific density distributions (40-55 kg/m³) to fit customized HVAC, piping, or wall cavity spaces.
In cryogenic LNG terminals, petrochemical storage, and food cold chain supply pipelines, materials must withstand extreme environments down to -200°C without cracking, structural failure, or loss of thermal efficiency.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our R&D and production base is located in Dacheng, China, a prominent hub for green building materials. Operating with a focus on energy-saving, consumption reduction, and environmental protection, Kingflex guides the development of the global building materials industry through expert technical consulting, custom production, and post-sale technical support.
Established by the Jinwei Group, which boasts over 40 years of history since 1979, Kingflex was the pioneer manufacturer of thermal insulation materials north of the Yangtze River. Over four decades, this foundation has evolved into a high-tech facility featuring 5 large-scale automated assembly lines. Our designated production status with the Ministry of Energy, Ministry of Electric Power, and Ministry of Chemical Industry highlights our manufacturing capabilities.
By utilizing automation, real-time quality tracking, and an integrated supply chain, we offer stable pricing, high production capacity, and excellent lead times. This resilience ensures a reliable supply for large-scale international projects, mitigating the risks of global logistics disruptions.
Detailed physical characteristics of Kingflex Standard Dimension NBR/PVC elastomeric rubber foam insulation series.
| Property / Metric | Elastomeric Foam Sheet Rolls | Elastomeric Foam Insulation Pipes |
|---|---|---|
| Base Material Type | NBR (Nitrile Butadiene Rubber) / PVC Blend | NBR (Nitrile Butadiene Rubber) / PVC Blend |
| Standard Thickness | 6mm to 50mm | 9mm to 40mm |
| Inner Diameter (ID) | N/A (Flat sheet form) | 6mm to 114mm |
| Material Density | 40 - 55 kg/m³ | 40 - 55 kg/m³ |
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0°C | ≤ 0.034 W/(m·K) at 0°C |
| Service Temp. Range | -40℃ to 105℃ (Ultra-Low cryogenic models down to -200℃) | -40℃ to 105℃ (Ultra-Low cryogenic models down to -200℃) |
| Closed Cell Structure | Uniform, fine structure (Closed cell rate > 98%) | Uniform, fine structure (Closed cell rate > 98%) |
| Moisture Resistance (μ) | High moisture resistance factor (Water absorption ≤ 1%) | High moisture resistance factor (Water absorption ≤ 1%) |
| Flame Retardancy | Self-extinguishing, meets BS 476, Class 0 / Class 1 | Self-extinguishing, meets BS 476, Class 0 / Class 1 |
From standard commercial HVAC pipelines to cryogenic facilities, our insulation products are deployed across diverse industries.
Central air conditioning systems in offices, shopping malls, and hospitals utilize closed-cell sheets to prevent energy loss and condensation on air handling units and cold-water pipelines.
Chemical plants and power generation facilities use NBR/PVC foam to protect process steam pipelines and bulk liquid tanks, preventing corrosion under insulation (CUI) and energy loss.
Our specialized cryogenic series provides stable performance down to -200°C for LNG carrier pipelines and cold storage installations, preventing condensation and structural freezing.
Our staff plays a vital role in our shared vision of delivering reliable services to our clients. The Kingflex team features 8 professional engineers in our R&D Department, 6 international sales specialists, and 230 technicians in our production department.
Our quality control system maintains traceability from raw polymer mixing to final foam extrusion. Our products have passed BS 476, CE, REACH, ROHS, UL94, and ASTM certifications, ensuring alignment with global construction standards and chemical safety regulations.
With this technical and personnel structure, Kingflex provides detailed custom engineering solutions, installation guidance, and design support, establishing our position as a reliable supplier in the global insulation market.
We streamline industrial procurement from material specification matching to port clearance.
Send us your project drawings, design densities, wall cavity spaces, or piping layouts for review by our engineering department.
We adjust thickness, inner diameter, UV protection, and chemical attributes to meet standard safety specifications.
Orders are processed via our 5 automatic extrusion lines under real-time density and thickness monitoring.
We handle export documentation and certification compliance to deliver products directly to your port or warehouse.
Get detailed technical answers regarding elastomeric rubber foam insulation capabilities, certifications, and procurement.
It is primarily used for HVAC ducts, air conditioning pipes, building thermal insulation (including cavity wall and roof designs), industrial pipeline cold insulation, and acoustic sound insulation.
Yes, our rubber foam insulation products are flame retardant. They meet key safety standards such as BS 476, Class 0/1, and UL94, ensuring compliance with building codes and industrial fire safety requirements.
Rubber foam features a flexible, closed-cell, and moisture-proof structure, making it ideal for HVAC, cold piping, and cavity wall vapor barriers. Rock wool is high-temperature resistant and fireproof, suitable for high-temperature industrial pipelines and fire wall applications.
Yes, we provide OEM services, allowing adjustments to dimensions, thickness (from 6mm to 50mm), densities, laminations (such as aluminum foil or self-adhesive backings), and specialized shapes for global projects.
Our products have passed BS 476, CE, REACH, ROHS, UL94, ASTM, and other international certifications, verifying quality and compliance with global environmental and safety standards.
Yes, Kingflex maintains batch traceability. Each production cycle is cataloged from chemical raw material input through extrusion, cutting, and packaging for quality verification.
We produce insulation sheet rolls in thicknesses ranging from 6mm to 50mm, accommodating thin acoustic barrier layouts as well as thick thermal systems.
The typical service life of our rubber foam pipes and boards is 10 to 15 years under recommended installation conditions, maintaining stable thermal and vapor resistance.
Connect with our engineering and procurement team for technical advice, thickness calculations, and direct factory pricing.
Request Factory Price ListSelect from our industrial-grade NBR foam rolls, rubber tubes, and ultra-low temperature system barriers.
Kingflex