Kingflex
Kingflex
Explore our elite range of sound absorption and thermal preservation foam materials engineered for global HVAC, mechanical pipelines, and high-performance building systems.
In modern industrial and structural design, noise pollution controls and thermodynamic conservation are integrated engineering targets. Specifically, Polyethylene Foam Sound Absorption mechanisms represent one phase of acoustic technology, but the highest industry standard is achieved by leveraging hybrid closed-cell structures like Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC) formulations. These materials are dynamically structured to block high-frequency sound wave transmissions while providing continuous structural vibration damping.
Direct sourcing from China guarantees a minimum of 25% cost mitigation compared to local third-party suppliers, without compromising critical standard parameters like ASTM E84 compliance.
Certified to BS 476, CE, REACH, RoHS, UL94, and ASTM guidelines. The manufacturing lifecycle of our products ensures risk-free specification inside highly regulated markets.
Our formulation is enriched with premium anti-aging agents, expanding the functional lifespan of the installation to 10-15 years, minimizing pipeline maintenance over time.
When planning system specs, sound attenuation relies heavily on density matching. Standard closed-cell polyethylene and NBR/PVC sheets feature a cross-linked structure that limits moisture absorption while providing excellent damping for structural sounds. Our foams maintain an optimal density of 40-55 kg/m³, which absorbs low-frequency vibrations and limits high-frequency noise transmission across HVAC systems, cleanrooms, and industrial steam networks.
Kingflex Insulation Co., Ltd. is a leading professional manufacturer and exporter of top-grade thermal and acoustic insulation systems. Located in Dacheng, China—widely recognized as the capital of green building materials—our operations are designed to prioritize energy conservation, sustainability, and green manufacturing.
We are backed by the Jinwei Group, an industry veteran established in 1979 with over 40 years of manufacturing experience. Jinwei was the first manufacturer of thermal insulation materials north of the Yangtze River, laying the foundation for our technological expertise.
We run 5 modern automated production lines, yielding an annual capacity of over 600,000 cubic meters. Our facilities are verified and approved by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
Our metrics demonstrate our capabilities as a reliable supply partner for large-scale global projects.
At Kingflex, we believe our people are our greatest strength. Our team is a tight-knit, talented group focused on providing consistent, first-class service to our international clients.
Our setup includes 8 professional engineers in our R&D Department, 6 international sales specialists, and 230 skilled production professionals. This structure enables us to continuously develop and refine new insulation formulas.
We maintain a strict quality assurance system to verify that every production run complies with international safety and performance standards.
For global engineering companies, material certification compliance is essential. Kingflex products carry international certifications including BS 476, CE, REACH, RoHS, UL94, and ASTM. We also provide complete product batch traceability, enabling tracking of raw material sourcing and manufacturing parameters for every shipment.
Every batch of incoming elastomer is verified for purity and density consistency.
Automated laser measuring guarantees consistent wall thickness across all sheets and pipes.
Retained production samples are archived for three years for post-sale accountability.
Refer to the technical data sheet below for details on materials, thicknesses, thermal conductivity, and operational temperature ranges.
| Technical Metrics | Black Rubber Foam Insulation Sheet Roll | Black Rubber Foam Insulation Pipe |
|---|---|---|
| Material Base | Elastomeric Nitrile Butadiene Rubber (NBR) & Polyvinyl Chloride (PVC) | Elastomeric Nitrile Butadiene Rubber (NBR) & Polyvinyl Chloride (PVC) |
| Thickness Range | 6mm - 50mm | 9mm - 40mm |
| Inner Diameter (ID) | N/A (Flat sheet/roll structure) | 6mm - 114mm |
| Density | 40 - 55 kg/m³ | 40 - 55 kg/m³ |
| Service Temperature | -40℃ to 105℃ | -40℃ to 105℃ |
| Thermal Conductivity | ≤ 0.034 W/(m·k) at 0℃ | ≤ 0.034 W/(m·k) at 0℃ |
| Moisture Resistance | Closed-cell structure > 98%, High water vapor resistance factor (μ ≥ 10,000) | Closed-cell structure > 98%, High water vapor resistance factor (μ ≥ 10,000) |
| Fire Behavior | Class 0 / Class 1 (BS 476), Self-extinguishing | Class 0 / Class 1 (BS 476), Self-extinguishing |
Our materials are specified for noise control and thermal management across several industrial and commercial sectors.
We maintain open communication with our global clients, ensuring specifications match ordering requirements before shipping.
We welcome third-party audits of our production processes to verify our compliance with environmental and industrial safety standards.
Detailed catalog selection covering acoustic structures, high-temperature lines, and specialized rock wool thermal blankets.
Standard industrial elastomeric NBR piping, featuring excellent flexibility and moisture protection.
Engineered to shield pipelines from harsh chemical reactions and outdoor elements.
Highly flexible formulation that simplifies installations around tight angles.
Standard closed-cell NBR/PVC blend pipe insulation for commercial HVAC water loops.
Provides thermal barrier protection and structural noise reduction for water systems.
Engineered to limit energy loss and prevent condensation on commercial HVAC ducts.
Complete system packages for municipal and industrial utility pipelines.
Specifically formulated to withstand cryogenic stress and thermal shock.
Dual-action insulation designed to manage condensation and control acoustics at cold temperatures.
Premium insulation for liquid gas handling systems and cold-chain facilities.
High-density rock wool board designed for heavy-duty fire proofing and industrial furnace walls.
Flexible rock wool wrap designed for high-temperature ducts and industrial tanks.
Technical answers to help buyers evaluate our products for acoustic and thermal insulation projects.
Select from our full line of insulation products below to request current wholesale pricing and shipping details.
