Explore our foundational range of elastomeric rubber foam sheets, pipes, and specialized thermal barriers designed for extreme efficiency.
Why modern HVAC, architectural structural designs, and cryogenic pipelines rely on high-performance structural adhesives to ensure long-term thermal barrier performance.
Traditional mechanical fasteners create thermal bridges that degrade system efficiency. Specialized thermal insulation glue secures elastomeric foam sheets seamlessly, creating a continuous, uninterrupted thermal barrier that maximizes energy conservation.
Condensation is the primary enemy of metallic piping networks. Premium bonding agents ensure airtight seam sealing of NBR/PVC closed-cell foams, preventing ambient moisture intrusion and protecting infrastructure from corrosion under insulation (CUI).
Modern commercial infrastructure demands adhesives that withstand cyclical thermal expansion. Our custom glue formulas are tailored for extreme service temperature ranges from -40°C up to 105°C (and lower for cryogenic systems).
Across Europe, North America, and the Asia-Pacific region, commercial HVAC installations and industrial process lines require high durability and strict adherence to environmental regulations. The transition to low-VOC (volatile organic compound) formulations is a leading market driver. Green building initiatives like LEED and BREEAM specify non-toxic, flame-retardant bonding agents that do not off-gas harmful chemicals over time.
In response to these market requirements, Chinese manufacturing centers, led by clusters in Dacheng (known as the green building material capital of China), have integrated their polymer chemistry R&D with downstream elastomeric foam production. This integration allows factories to supply unified, certified systems: matching NBR/PVC foam pipes and sheets with chemically compatible, fire-rated adhesives to ensure seamless structural longevity.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex research development and production department is located in well-known capital of green-building materials in Dacheng, China. It is an energy-saving, environmentally friendly enterprise concentrating on research, development, production, and sales.
In operation, Kingflex takes energy saving and consumption reduction as the core concept. We provide insulation solutions through professional consultation, dedicated research and development, efficient production, installation guidance, and comprehensive post-sale service to lead the development of the global building materials industry.
Kingflex was established by the Jinwei Group, which holds a rich manufacturing history spanning more than 40 years. Founded in 1979, the Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River, paving the way for decades of thermal performance innovation.
Our employees are amazing in their own right, but together they make Kingflex a collaborative and rewarding environment. The Kingflex team is a tight-knit, talented group with a shared vision of providing consistently first-class service. Our team includes 8 professional R&D engineers, 6 international sales consultants, and 230 manufacturing specialists.
Currently, Kingflex operates 5 large automatic assembly lines, yielding an annual production capacity of over 600,000 cubic meters. This scale has earned us the status of a designated production enterprise for major domestic infrastructure and petrochemical initiatives.



How our centralized supply chain translates into optimized project budgets, reliable quality controls, and rapid global delivery.
Situated in Dacheng, the epicenter of green building materials, Kingflex leverages an ecosystem of raw polymer suppliers, flame retardant compounding units, and packaging manufacturers. This localized proximity reduces internal transport overheads and raw material procurement lead times.
Our 5 high-speed automated extrusion lines operate under real-time sensor control. Continuous thickness calibration, density monitoring, and inline adhesive backing applications reduce material scrap rates, allowing us to maintain competitive pricing.
From primary mixing batches to final product packaging, every shipment carries a unique batch ID. Fully traceable products allow us to satisfy strict compliance schemes across BS 476, CE, REACH, ROHS, UL94, and ASTM testing regimens.




How our combined systems (elastomeric insulation foam & specialized adhesives) perform under distinct environmental stresses.
Challenge: Excessive ambient relative humidity leads to surface condensation on supply air ducts, leading to water dripping and ceiling damage.
Solution: Kingflex NBR/PVC closed-cell foam sheets are bonded with water-resistant thermal glue. The adhesive forms a non-porous joint seal that prevents moisture vapor from bypassing the insulation barrier.
Challenge: Temperatures drop below -150°C, causing conventional glues to crystallize, embrittle, and fail structurally.
Solution: Specialized elastomeric cryogenic insulation materials coupled with high-viscosity thermal adhesive systems. This combination maintains elasticity and bonding strength under extreme thermal shock cycles.
Challenge: Public spaces (airports, medical institutions) demand strict smoke toxicity controls and flame retardation.
Solution: Flame retardant, self-extinguishing Kingflex sheets and tubes applied with fire-resistant solvent adhesives that comply with BS 476 and UL94 fire safety protocols.
To successfully service these scenarios, our standard product lines are manufactured to the following specifications:
"Providing globally certified thermal insulation and acoustic barrier materials, backed by specialized bonding systems that optimize field application efficiency and ensure longevity."
A reference table mapping specific thermal insulation substrates with appropriate adhesive categories to guide field specification.
| Insulation Substrate | Adhesive Chemistry | Optimal Service Temp | Key Application Goal | Vapor Barrier Performance |
|---|---|---|---|---|
| NBR/PVC Elastomeric Foam | Polychloroprene Solvent-based | -40°C to +105°C | Seam bonding, HVAC pipe wrapping | Excellent (μ ≥ 7,000) |
| Cryogenic Elastomeric Foam | Polyurethane Two-component | -200°C to +80°C | LNG pipelines, low temperature process lines | Impermeable vapor mastic coat |
| Rock Wool / Mineral Wool | Inorganic Silicate / Acrylic mix | Up to +650°C | High-temperature industrial boiler ducting | Requires external foil jacket seal |
| Open Cell Soundproofing Foam | Water-based acrylic contact | -20°C to +80°C | Acoustic lining of air distribution boxes | Moderate (Internal use only) |
*Note: Selecting the wrong adhesive chemical base can result in foam degradation or structural detachment under extreme thermal expansion. Consult with our engineering team for precise custom quotes.
Reviewing our field performance footprints and customer communication records globally.

















Key variables purchasing managers evaluate during procurement cycles.
International environmental regulations restrict VOC thresholds. Developing low-emission, solvent-free adhesives is key to securing bids in green building projects.
Rising labor costs make efficiency critical. Specifiers are shifting to elastomeric foam sheets featuring factory-applied self-adhesive backings to speed up field installation.
Industrial systems face continuous thermal cycling. Procured adhesives must maintain structural adhesion over a project lifespan of 10 to 15 years without cracking.




Addressing the technical, regulatory, and logistics questions raised by procurement managers and structural engineering agencies.
Connect with the Kingflex engineering and commercial teams. Let us assist you with material selection, compatibility checks, and factory-direct pricing for your next project.
Request Free Catalog & QuotesBrowse our complete list of thermal and industrial acoustic barriers, featuring rock wool, pre-insulated pipes, and custom tubing.