Kingflex
Explore our premium grade elastomeric rubber foam insulation products designed for demanding thermal, cryogenic, and acoustic barriers.
Modern building codes, hyper-scale datacenter cooling infrastructure, and large industrial production facilities demand unprecedented levels of performance from acoustic and thermal insulation systems. No longer are generic open-cell polyurethanes sufficient for complex commercial tasks. High-performance, cross-linked elastomeric closed-cell NBR/PVC structures have emerged as the global standard for industrial noise abatement, HVAC condensation containment, and cryogenic systems.
By preventing structural moisture penetration and utilizing sound-energy dispersion through uniform microporous air cells, elastomeric insulation plays an indispensable role in maintaining acoustic health and optimizing thermal envelope efficiency worldwide.
Accurate acoustic optimization requires calculating specific frequency thresholds (specifically, frequencies from 125 Hz to 4000 Hz) to configure absorption coefficients. Read below for our deep dive into acoustic calculator algorithms.
Understanding the physics of reverberation control, absorption coefficients, and material configurations.
Calculates the total three-dimensional volume ($V = L \times W \times H$) and surface area ($S$) of the target space. Inputting existing boundary materials determines initial decay patterns.
Calculates the decay time required for sound energy to drop by 60 decibels. Typical targets are 0.4s to 0.6s for speech and 1.0s to 1.5s for industrial environments.
Determines necessary thickness (ranging from 6mm to 50mm) and density ($40\text{–}55\text{ kg/m}^3$) of elastomeric foam to optimize acoustic wave attenuation via air-cell friction.
Engineers calculate required absorption area using Sabine’s Formula: $$A = 0.161 \times \frac{V}{RT_{60}}$$ Where A is the total absorption in Sabins, V is the room volume in cubic meters, and $RT_{60}$ is the target reverberation time. Subtracting current absorption yields the exact surface coverage required of Kingflex elastomeric foam sheets.
Standard engineering criteria for Kingflex elastomeric NBR/PVC sheets and pre-formed pipe insulations.
Highly adaptable rolls suitable for large-diameter pipelines, ventilation duct walls, and specialized structural enclosures.
Seamless extruded profiles engineered for rapid installation over copper refrigeration lines and industrial process pipelines.
| Performance Indicator | Reference Standards | Test Metrics (Kingflex Standard Values) | Acoustic & Thermal Impact |
|---|---|---|---|
| Thermal Conductivity ($\lambda$) | ASTM C518 / EN 12667 | $\le 0.034 \text{ W/(m}\cdot\text{K)}$ at 0℃ | Exceptional heat transfer control in chilled water and HVAC operations. |
| Moisture Permeability | BS EN 12086 | Water vapor diffusion resistance factor $\mu \ge 10,000$ | Eliminates structural deterioration and mold propagation risks. |
| Fire Hazard Rating | BS 476 Part 7 / UL 94 | Class 0 / Class 1 / V-0 self-extinguishing | Enhances structural safety and prevents flame propagation. |
| Sound Transmission Class (STC) | ASTM E90 | Approx. 28 dB to 35 dB (System dependent) | Dampens low to mid-range airborne frequencies in ductwork. |
| Dimensional Resilience | ASTM C177 | Compression recovery rate > 80% | Maintains protective thickness under mechanical load conditions. |
Optimizing architectural integration, structural acoustics, and thermodynamic integrity across diverse environments.
Prevents surface condensation on air ducts while damping acoustic vibration from high-velocity fan systems. Essential for commercial office blocks and hospitals.
Maintains absolute containment for liquid gas transportation lines down to cryogenic ranges, minimizing external thermal ingress and operational safety hazards.
Used widely in chemical refinery systems to secure hot fluid preservation, protect metal surfaces from external atmospheric corrosion, and reduce operational decibels.
Established under the aegis of the Jinwei Group (founded in 1979), Kingflex stands as the pioneer manufacturer of thermal and acoustic insulation materials north of the Yangtze River. Located in Dacheng, China—the recognized national capital of green building technologies—our company functions as an advanced, eco-conscious industrial powerhouse merging specialized R&D with modern automated manufacturing.
Our guiding operational thesis is energy optimization and system-wide consumption reduction. We support consulting firms, EPC contractors, and global distributors with complete end-to-end solutions, starting from calculation phase validation down to custom thickness sheet fabrication and onsite installation guidelines.
Our material performance is driven by an elite engineering core operating state-of-the-art testing equipment. We focus on cross-linked polymer adjustments to reduce thermal conductivity values while improving physical tensile properties. Every batch undergoes validation processes for fire spread, smoke production index, moisture permeability, and high-temperature aging tests.
Our R&D department houses testing suites for thermal performance, acoustic absorption testing, and environmental simulation cabinets, ensuring each product performs reliably in hot, humid tropical climates or arctic extreme conditions.
Our products conform to major international regulatory bodies, offering complete confidence in risk-sensitive environments.
Class 0 qualification for low surface flame propagation and fire propagation limit.
Meets European Union health, safety, and environmental protection standard directives.
Free from halogenated compounds, hazardous heavy metals, and toxic chemical elements.
Rigorous factory quality control audits for consistent product density and dimensional accuracy.
Global client feedback confirms the mechanical and thermodynamic durability of our elastomeric line.
We work closely with global engineering clients. From the initial calculation and planning stages down to post-project validation, our international team provides rapid, detailed support to ensure compliance with local building codes.
Whether verifying mechanical shear ratings, confirming thermal conductivity parameters via independent laboratory tests, or coordinating custom size shipments, our dedication to service ensures seamless execution of HVAC and process insulation contracts.
Driving development of next-generation elastomer structures, automated production lines, and ecological materials.
Our materials laboratory is integrating carbon-based nanoparticles into the core NBR polymer structure, aiming to reduce thermal conductivity below $0.030 \text{ W/(m}\cdot\text{K)}$ while retaining excellent flexibility.
We are updating Dacheng's automated assembly lines with advanced biomass thermal generators and high-efficiency closed-loop water recirculation systems, minimizing water usage during vulcanization.
We are rolling out an AI-assisted cloud calculator platform that allows project managers to upload AutoCAD architectural drafts and directly compute optimal insulation thickness, fire rating compliance, and material bills of quantities.
Get answers to common engineering questions regarding the application, properties, and sourcing of closed-cell elastomeric rubber foam insulation.
A look at our automated lines, raw material blending systems, and finished goods warehouse in Dacheng.
Explore the rest of our specialized closed-cell NBR sheet rolls and industrial plumbing solutions.
