Industry-standard high-density flexible foam tubes, sheets, and rolls configured for complex HVAC engineering and infrastructure demands.
Prevents surface condensation on cold-water supply systems and chilled water pipelines. In humid regions, the 19mm barrier shifts the dew point away from structural elements, protecting building envelopes from moisture and mold growth.
Dew Point ShiftMinimizes heat transfer in HVAC ducting and high-pressure steam distribution networks. This insulation reduces parasitic thermal losses, lowers utility bills, and supports corporate carbon reduction goals.
Low Thermal ConductivityThe elastomeric structure acts as a sound-absorbing barrier, reducing mechanical vibration and breakout noise from ducts and equipment rooms, creating quieter workspaces.
Vibration IsolationEstablished under the Jinwei Group, which holds more than 40 years of manufacturing history, Kingflex began its journey in 1979 as the first manufacturer of thermal insulation materials north of the Yangtze River. Today, the facility has grown into a leading industrial campus in Dacheng, China—the capital of green building materials.
With a focus on energy efficiency and waste reduction, Kingflex combines research, development, high-volume production, and comprehensive technical support to supply construction and industrial markets worldwide.
Technical specifications, chemical properties, and testing parameters for engineers and project specifiers.
| Insulation Parameter | Unit / Metrics | Kingflex Standard Specifications (19mm) | Test Methods & Compliance |
|---|---|---|---|
| Thermal Conductivity (λ) | W/m·K at 0°C | ≤ 0.034 | ASTM C518 / ISO 8301 |
| Density | kg/m³ | 40 - 55 | GB/T 6343 / ASTM D1622 |
| Closed-Cell Rate | % | ≥ 98% | High-frequency volumetric expansion |
| Water Vapor Permeability (μ) | Dimensionless | ≥ 10,000 (Moisture resistance factor) | BS EN 12086 / ASTM E96 |
| Service Temperature Range | °C | -40 °C to +105 °C (Supports sub-zero cryogenic systems) | ASTM C411 |
| Reaction to Fire | Class rating | Class 0 (Flame spread ≤ 25, Smoke developed ≤ 50) | BS 476 Part 6 & 7 / UL 94 V-0 / ASTM E84 |
| Compression Resilience | % | ≥ 80% (Exceptional recovery from mechanical load) | ASTM D1056 |
| Chemical Traceability | System code | Batch-specific barcoding & QR tracking | ISO 9001 Compliance Protocols |
Kingflex 19mm sheets are engineered to perform in various demanding environmental and architectural installations:
The Kingflex R&D department features 8 professional engineers dedicated to improving formulation recipes, optimizing cell structure, and raising fire safety ratings. We use high-precision testing apparatus to verify thermal conductivities and moisture transmission rates for every product run.
This rigorous quality control process ensures that Kingflex 19mm flexible sheets comply with global certification schemes, including CE, REACH, RoHS, UL94, and ASTM.
Global regulatory frameworks, such as the EU's Energy Performance of Buildings Directive (EPBD) and LEED v4.1 certification, require building materials to have lower embodied carbon. Kingflex is incorporating bio-based raw materials and clean-energy manufacturing lines to reduce carbon emissions across our supply chain.
Modern building maintenance systems increasingly use IoT monitoring. Kingflex is testing flexible sheets with embedded humidity and heat flux sensors. These smart sheets alert building management systems to condensation risks or thermal breaches before structural water damage occurs.
For harsh outdoor environments (e.g., coastal or high-UV areas), standard NBR foam is paired with Kingflex aluminum foil or polyurea coverings. This extra protection safeguards the 19mm insulation core against ozone damage, UV degradation, mechanical punctures, and chemical splashes.
Our 230 production workers, 8 R&D engineers, and 6 international sales associates work together to deliver consistent quality and support to global clients.
Detailed physical dimensions, thermal ratings, and performance comparative data across our main product formats.
Material: NBR/PVC Premium Blend
Thickness Range: 6mm - 50mm
Density: 40 - 55 kg/m³
Temperature Limit: -40℃ to 105℃
Material: NBR/PVC Extruded Profile
Thickness Range: 9mm - 40mm
Inner Diameter: 6mm - 114mm
Density: 40 - 55 kg/m³
Kingflex insulation sheets are regularly tested for compression set, water absorption, and fire performance. They are suitable for large HVAC ducts, cleanrooms, and challenging industrial environments.
Verified correspondence and project updates showing the performance of our 19mm flexible sheets on job sites worldwide.
Expert answers to common engineering questions regarding the application, properties, and shipping of NBR/PVC elastomeric insulation.
A wider selection of Kingflex elastomeric foam tubes, boards, and specialty acoustic materials.
High-performance rolls, boards, and sound-absorbing panels designed to prevent thermal energy losses and condensation.
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