Engineered for superior thermal efficiency, mechanical resilience, and structural longevity
Modern architectural engineering demands structural envelope materials that balance thermodynamic efficiency with long-term ecological sustainability. In the context of global climate mitigation strategies, building insulation materials are no longer evaluated solely on initial thermal resistance values. They are now scrutinized based on life-cycle assessment (LCA), ozone depletion potential (ODP), global warming potential (GWP), and volatile organic compound (VOC) emissions profiles. Kingflex closed-cell elastomeric NBR/PVC foam products represent a sophisticated engineering solution, designed to achieve maximum carbon-reduction points under LEED, BREEAM, DGNB, and the domestic China Green Building Evaluation Standard (GB/T 50378-2019).
For international Engineering, Procurement, and Construction (EPC) contractors, securing suppliers that satisfy green building certifications involves managing complex supply-chain compliance. Enterprise procurement matrices prioritize materials with third-party verified environmental declarations. Kingflex supports global sustainable purchasing objectives by offering thermal insulation systems certified under BS 476, CE, REACH, RoHS, UL94, and ASTM standards. This verification guarantees that our products do not release harmful halogenated compounds, formaldehyde, or heavy metals during operational lifespans, meeting stringent indoor air quality (IAQ) and safety protocols.
In large-scale commercial, institutional, and industrial facility developments, heating, ventilation, and air conditioning (HVAC) systems can consume up to 40% of a building's operational energy. Proper insulation of air distribution ducts, chilled-water pipes, and steam lines is essential to limit heat gain and loss. Our premium NBR/PVC elastomer foam boards and pre-formed pipe sections ensure thermodynamic stability, maintaining low thermal conductivity (λ ≤ 0.034 W/m·K at 0°C) across operational temperature envelopes ranging from -40°C up to 105°C. For industrial environments, these systems prevent surface condensation and minimize thermal bridging, protecting building infrastructure from systemic degradation.
| Physical Parameter | Value Range / Standard Reference | Thermodynamic & Green Building Significance |
|---|---|---|
| Thermal Conductivity (λ) | ≤ 0.034 W/(m·K) at 0°C | Reduces HVAC cooling/heating losses; directly lowers carbon emission profiles. |
| Closed Cell Ratio | ≥ 98% | Prevents moisture absorption, preserving thermal resistance over decades. |
| Moisture Resistance (μ-factor) | ≥ 10,000 (DIN EN 12086) | Eliminates the requirement for auxiliary vapor barriers in high-humidity zones. |
| Service Temperature Limits | -40°C to +105°C | Applicable for chilled water systems, HVAC ducts, and process hot water pipelines. |
| Fire Performance Rating | BS 476 Class 0, UL94 V-0 | Flame-retardant and self-extinguishing behavior; does not produce dripping combustion particles. |
| Eco-Compatibility | REACH & RoHS Compliant | Free of CFCs, HCFCs, formaldehydes, and hazardous heavy metals. |
Providing reliable global supply chains for architectural and industrial projects
Kingflex Insulation Co., Ltd. is a specialized manufacturing and trading consortium dedicated to high-performance thermal insulation systems. Our research, development, and advanced manufacturing operations are situated in Dacheng, China—a recognized hub for green-building material production. As an energy-efficient enterprise, Kingflex focuses on research and development, manufacturing, and commercial distribution of sustainable products.
Our core philosophy centers on minimizing operational energy consumption and environmental impact. We deliver integrated insulation solutions encompassing technical consultation, specialized R&D, manufacturing quality control, and post-sale field support to advance insulation technologies worldwide.
Kingflex was established by the Jinwei Group (also known as the Kingway Group), which has a heritage spanning more than 40 years. Founded in 1979, the group was one of the earliest thermal insulation material manufacturers established north of the Yangtze River, contributing decades of manufacturing expertise to modern elastomeric formulations.
Our team consists of 8 professional engineers in the R&D Department, 6 international sales specialists, and 230 manufacturing staff, all working together to deliver consistent quality and service to our clients.
We are a designated production enterprise certified by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry, ensuring adherence to national regulatory guidelines.
We supply thermal insulation, cold insulation, and noise reduction systems tailored for buildings and industrial facilities, helping to reduce operational emissions.
Precision formulations for complex thermal environments
Material base: NBR/PVC elastomeric compound.
Available thickness options: 6mm to 50mm.
Material density: 40 to 55 kg/m³.
Service temperature: -40°C to 105°C.
Key Advantages:
Material base: NBR/PVC elastomeric compound.
Wall thickness options: 9mm to 40mm.
Inner diameter (ID) range: 6mm to 114mm.
Material density: 40 to 55 kg/m³.
Service temperature: -40°C to 105°C.
Key Advantages:
Our insulation systems are implemented in mechanical and thermal projects internationally. Below is a overview of our product application details, material testing, and logistical processes:
















Client communication records demonstrating compliance and logistics follow-through
We maintain open channels of communication with international purchasing agents and project contractors. The following records illustrate our support for custom project specifications, order tracing, and regulatory compliance.
Our international sales division provides direct technical support and project quotation coordination.
Continuous vulcanization and expansion processes ensuring density uniformity
Operating five automated extrusion and horizontal expansion ovens, our production facility maintains process stability for density, cell size distribution, and wall thickness. Continuous thickness monitoring systems automatically reject components deviating from target dimensions, providing dimensional consistency for on-site installers.




























Developing advanced technologies for high-performance insulation
Our research focuses on developing halogen-free expanding elastomers. This reduces smoke toxicity and corrosive emissions in building fire events, aligning with global green building safety guidelines.
We are studying the integration of biological and recycled content within our polymer feedstocks. This initiative aims to lower the embodied carbon footprint of our finished elastomeric insulation systems.
By incorporating aerogel technologies, we aim to lower thermal conductivity limits down to λ ≤ 0.026 W/m·K, allowing for thinner profiles in space-constrained installations.
Addressing technical and compliance queries for engineering and procurement
Elastomeric boards and preformed pipes for mechanical applications