Direct supply options for engineered elastomeric sheets, tubes, and performance-specific thermal interfaces.
Understanding structural thermal dynamics, moisture barriers, and acoustic attenuation performance vectors in modern commercial architecture.
When selecting a roof insulation supplier, architectural specifiers and MEP engineers look beyond basic R-values. The modern structural envelope requires materials that mitigate complex risks: condensation buildup, moisture intrusion, high thermal cycling stress, and dynamic acoustic interference. Kingflex closed-cell elastomeric rubber foam insulation meets these requirements with a cross-linked structure that combines thermal resistance and vapor barriers.
With an structural density of 40-55 kg/m³ and operating limits of -40°C to 105°C, these materials are widely used in roofing envelopes, HVAC water supply systems, industrial processing, and cryogenic storage.
Designed to comply with global structural safety frameworks, our production line conforms to international profiles:
| Material base | NBR (Nitrile Butadiene Rubber) / PVC Blend |
| Thickness Span | 6mm to 50mm (Rolls & Sheets) |
| Inside Diameter (Pipes) | 6mm to 114mm |
| Thermal Stability Range | -40°C to +105°C (Cryogenic lines scale down to -200°C) |
| Vapor Diffusion Rating | μ ≥ 10,000 (Built-in Vapor Barrier) |
| Fire Properties | Class 0 / Class 1 BS 476, UL94 V-0, ASTM E84 compliant |
How global projects configure Kingflex elastomeric systems across commercial building envelopes, heavy industry, and HVAC lines.
Eliminates thermal energy losses and prevents external condensation in chilled water systems, air conditioning distribution lines, and ventilation systems. The material's high vapor resistance protects indoor air quality by preventing biological growth within plenums.
Applied underneath metal and concrete decks to insulate buildings from outdoor temperature variations. Resilient under load, it maintains its structural density over long thermal cycles, improving HVAC system efficiency.
For chemical complexes and LNG installations operating down to -200°C. Kingflex cryogenic solutions protect structural steel against extreme thermal shock and keep liquid processing channels thermally stable.
Kingflex Insulation Co., Ltd. is based in Dacheng, China—a hub for energy-efficient building materials. We operate 5 large automatic assembly lines, yielding an annual capacity of over 600,000 cubic meters.
This scale allows us to maintain stable production and supply chains for large building contractors. By managing production from compounding NBR/PVC raw materials to curing and extrusion, we offer consistent batch quality and pricing optimization.
Research & Development Footprint: Our R&D department includes 8 professional engineers focused on improving thermal properties and developing anti-aging elastomers. We also offer customization options for dimensions, density, and colors.
A look at our field installations, production lines, and quality control systems in action.
















Comprehensive performance parameters comparing different rubber foam profiles for architectural systems design.
| Insulation Type | Material Core | Thermal Conductivity (λ) | Vapor Resistance (μ) | Fire Classification | Main Use Cases |
|---|---|---|---|---|---|
| Standard Roll / Sheet | NBR/PVC Elastomeric | ≤ 0.034 W/m·K at 0°C | ≥ 10,000 | BS 476 Class 0, UL94 V-0 | Roofing, structural walls, under-slab, large-scale ventilation ducts. |
| Flexible Insulation Tube | NBR/PVC Closed-Cell | ≤ 0.035 W/m·K at 20°C | ≥ 8,000 | ASTM C534, Class 1 | HVAC pipes, domestic water pipes, industrial steam lines. |
| Cryogenic Foam System | Diolefin Base Polymer | ≤ 0.031 W/m·K at -50°C | ≥ 15,000 | UL94 HF-1, BS 476 | Cryogenic processing pipelines, LNG lines, chemical plants. |
| Open-Cell Sound Panel | Acoustic-Modified NBR | ≤ 0.042 W/m·K at 20°C | Open-cell structural | Class B2, self-extinguishing | Engine room lining, duct lining, acoustic dampers. |
Standard Dimensions & Technical Limits:
Material: NBR/PVC
Thickness: 6mm - 50mm
Density: 40 - 55kg/m³
Operating Temperature Range: -40℃ to 105℃
Standard Dimensions & Technical Limits:
Material: NBR/PVC
Thickness: 9mm - 40mm
Inside Diameter: 6mm - 114mm
Density: 40 - 55kg/m³
Operating Temperature Range: -40℃ to 105℃
Verified testing reports from international laboratories confirm our material safety and physical properties.
Kingflex elastomeric thermal insulation materials have passed certifications required for global building safety. These include BS 476 Part 6 & 7 (Class 0 / Class 1), CE, REACH, RoHS, UL94, and ASTM testing. This compliance provides engineers and builders with the verification needed to meet fire-safety, toxicity, and performance codes in Europe, the Americas, Asia-Pacific, and the Middle East.
R&D direction, next-generation thermal barriers, and sustainable material chemistry.
By infusing silica aerogels into the NBR/PVC elastomer matrix during extrusion, we are working to reduce thermal conductivity values from λ 0.034 to below λ 0.027 W/m·K. This will allow for thinner installations in height-restricted roof designs.
We are developing halogen-free, bio-based nitrile rubbers derived from plant oils. This reduces the carbon footprint of production while maintaining flame-retardant performance and low smoke generation during fire exposure.
Our research includes integrating conductive micro-filaments within the closed-cell matrix. These filaments interface with building automation systems to detect structural roof leaks or pipe condensation issues in real time.
Real verification screenshots highlighting customer dialogue, batch acceptance, and direct supply relationships.





Detailed technical advice for builders, design offices, and insulation wholesalers.
Review additional insulation options including soundproofing barriers, cryogenic structures, and thick elastomeric panels.