Direct access to our factory-direct catalog featuring high-performance elastomeric tubes, specialty thermal sheets, and eco-friendly insulation products.
The global thermal insulation landscape is undergoing a critical transition. As international energy regulations align with strict decarbonization and green-building codes, industrial operators are moving past traditional fiberglass and rock wool materials. Closed-cell elastomeric rubber foam insulation (specifically NBR/PVC blends) has emerged as the premier standard for modern HVAC, refrigeration, and industrial processing lines.
Key drivers include the imperative to mitigate Corrosion Under Insulation (CUI), reduce moisture permeability, and meet rigorous indoor air quality (IAQ) and non-toxic outgassing thresholds. With the rapid growth of high-tech data centers, semiconductor cleanrooms, and pharmaceutical cold storage facilities, precise thermal stability with zero moisture absorption has transformed from a cost-saving option to an absolute engineering prerequisite.
Located in Dacheng, the recognized capital of green building materials in China, Kingflex Insulation Co., Ltd. represents the peak of modern material manufacturing. Powered by Jinwei Group's legacy of over 40 years of pioneering technical research (established in 1979 as the first thermal insulation manufacturer north of the Yangtze River), our facility combines research, automated production, and direct-to-customer global logistics.
We operate 5 large automatic continuous assembly lines with an annual production output exceeding 600,000 cubic meters. This immense capacity ensures that we can scale production rapidly during tight construction cycles. Our highly integrated supply chain acts as a buffer against volatile raw material markets, providing consistent, highly competitive pricing indexes directly to global project managers without middleman markups.
Our NBR/PVC elastomeric thermal systems are engineered to perform under extreme ambient conditions. Below are the physical and chemical properties that define Kingflex materials.
Perfect for large-diameter ducts, heavy industrial vessels, and complex machinery geometries where standard pipe profiles are not applicable. Provides continuous thermal resistance with integrated vapor barrier defense.
| Property | Value |
|---|---|
| Material Blend | NBR/PVC Elastomeric |
| Thickness Range | 6mm to 50mm |
| Density Range | 40 - 55 kg/m³ |
| Temperature Range | -40℃ to 105℃ |
Key Advantages: High flexibility, low moisture absorption index, >80% compression resilience, flame retardant, self-extinguishing.
Designed for immediate install over copper lines, steel mains, and dynamic hot/cold process lines. The integrated inner lining reduces friction during slide-on applications, and easily splits for retrofitting.
| Property | Value |
|---|---|
| Material Blend | NBR/PVC Elastomeric |
| Thickness Range | 9mm to 40mm |
| Inner Diameter (ID) | 6mm to 114mm |
| Density Range | 40 - 55 kg/m³ |
Key Advantages: Dynamic uniform wall thickness via specialized spray-extrusion technology, drastic reduction in pipe freezing risk, and advanced sound attenuation.
Our products are engineered for specific, high-stress roles across global residential and commercial infrastructure:




At Kingflex, we operate under the strict understanding that building insulation represents a fundamental safety and structural layer of any modern project. Our internal laboratory, staffed by eight professional R&D engineers, subjects every production run to extreme environment simulations, ensuring compliance with global certifications including BS 476, CE, REACH, RoHS, UL94, and ASTM standards.
Additionally, we implement an enterprise-wide batch traceability program. Every single roll of elastomeric sheet and carton of pipe insulation is stamped with unique identifier codes tracking back to raw material supply batches, environmental conditions during curing, and factory lab validation profiles. This ensures that any installation issue on a project site can be audited, diagnosed, and resolved with total transparency.




How global distribution networks and engineering firms structure bulk purchasing for foam pipe insulation to maximize lifetime value and minimize transportation costs.
Purchasing foam insulation from China involves variables beyond the base price-per-meter. To optimize procurement budgets, managers must evaluate:
Deep dive technical answers regarding elastomeric foam characteristics, certifications, and application standards.




Explore our complete range of specialized elastomeric tapes, high-density insulation supports, and heavy-duty industrial pipe profiles.
We manufacture a wide range of specialized insulation components, from ultra-low cryogenic rubber foam systems to structural rock wool composites.
A photographic overview of our 600,000 m³ automated facility in Dacheng, China, showing precision extrusion, testing labs, and high-volume packing operations.




























