Explore our industrial-grade thermal and cryogenic flexible elastomeric sheets and rolls engineered for zero condensation and minimum thermal bridging.
Modern building services design and petrochemical process safety mandate absolute containment of thermal transmission and zero humidity ingress. Our wholesale sheet and roll insulation stands at the forefront of this industrial demand. Composed primarily of a highly synthesized Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC) matrix, our elastomer materials exhibit a closed-cell ratio exceeding 98%.
By locking down microscopic air pockets within structural polymer boundaries, our sheets and rolls deliver a persistent low thermal conductivity ($K$-Value of $\le 0.034$ W/m·K at $0^\circ\text{C}$). Unlike fibrous materials, our elastomeric solution does not rely on outer cladding to resist water vapor absorption—it possesses an inherent resistance factor ($\mu \ge 10,000$) acting as a continuous, robust vapor barrier.
Whether protecting multi-chiller HVAC systems from structural condensation or ensuring the stability of sub-zero cryogenic processes, the thermal efficiency remains constant, eliminating system failures and minimizing operating expenditures over decades.
View Specifications & Dimensions
Our standard sheet and roll dimensions conform strictly to ASTM, CE, and EN parameters, ensuring ease of integration in global engineering projects.
| Insulation Type | Material Core | Standard Thickness | Inner Diameter / Width | Density Range | Temperature Range |
|---|---|---|---|---|---|
| Black Rubber Foam Sheet & Roll | NBR/PVC Blends | 6mm to 50mm | 1m / 1.2m / 1.5m Width | 40 - 55 kg/m³ | -40℃ to 105℃ |
| Black Rubber Foam Pipe & Tube | NBR/PVC Elastomeric | 9mm to 40mm | 6mm to 114mm ID | 40 - 55 kg/m³ | -40℃ to 105℃ |
| Cryogenic Sub-Zero Insulation | Specialized Low-Temp Elastomer | Customized Multilayer | Configurable Sheets / Tubes | 50 - 65 kg/m³ | -200℃ to 125℃ |
| Acoustic Rubber Dampening Board | High-Density NBR Soundproof | 10mm to 30mm | 1m Width Sheets | 60 - 80 kg/m³ | -40℃ to 85℃ |
Features an exceptional resilience factor exceeding 80%. Rebounds flawlessly under vibration or mechanical compression, guaranteeing longevity behind protective jackets and claddings.
Engineered with active fire-retardants. Self-extinguishes instantly off fire, producing minimal toxic smoke. Conforms to BS 476, UL94 Class V-0, and international class-0 fire standards.
Manufactured using ozone-friendly foaming chemicals. Free from chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and toxic fibers, maintaining Indoor Air Quality (IAQ).
Providing custom density, thickness, and dimensions for complex chemical processes and construction HVAC networks.
Kingflex Insulation Co., Ltd. represents the peak of thermal insulation manufacturing in Dacheng, China—widely celebrated as the capital of green-building materials. Established originally by the Jinwei Group, our history spans more than 40 years, with our parent company founded in 1979 as the pioneer manufacturer of thermal insulation materials north of the Yangtze River.
Today, our facility drives production efficiency through 5 large-scale automated continuous vulcanization assembly lines. With an annual capacity exceeding 600,000 cubic meters, we serve as the designated strategic manufacturer for China's Ministry of Energy, Ministry of Electric Power, and Ministry of Chemical Industry.
Our localized supply chain advantage in Dacheng ensures direct access to high-grade raw polymer materials, optimizing freight logistics through major northern Chinese shipping ports. This translates directly to shorter manufacturing lead times, competitive wholesale pricing, and reliable quality metrics for our global distributor base.
Our dedicated R&D wing, staffed by 8 expert chemists and structural engineers, conducts relentless testing for moisture permeability, aging, and flame spread parameters.
Every roll of Kingflex insulation leaving our factory floor carries full product traceability, complete batch numbering, and strict verification tags. We meet and exceed global specifications:
From deep-sea marine engineering to heavy district energy plant HVAC lines, our sheet and roll options ensure optimum performance.
Applied to large duct systems and air handling units (AHUs). Provides double-duty benefits by preventing surface condensation in high-humidity zones while acting as a natural acoustic dampener to eliminate fan vibration noise.
For chemical and liquid gas transportation systems down to $-200^\circ\text{C}$. Our cryogenic rubber foam retains physical flexibility, eliminating structural cracking from thermal contraction and keeping heat ingress at zero.
Specifically used on steam tubes, chemical heat-exchangers, and fluid storage systems up to $105^\circ\text{C}$ to lock down heat loss, maintaining precise process temperatures and preventing corrosion under insulation (CUI).
Our employees are amazing in their own right, but together they are what makes Kingflex such a fun and rewarding place to work. The Kingflex team is a tight-knit, talented group with a shared vision of giving consistently first-class service for our clients. Currently, Kingflex operates with 8 professional engineers in our R&D Department, 6 professional international sales consulting managers, and 230 skilled technicians on the production line.
We realize global procurement managers do not just buy materials; they secure project schedules. Our support includes custom thickness slicing, special self-adhesive coatings, aluminum foil lamination, and tailored packaging designed to withstand harsh maritime freight conditions.
We maintain deep trade relationships globally, providing localized documentation support, customs Clearance data sheets, and dedicated engineers to assist with installation guidelines on-site.
Get professional answers regarding elastomeric rubber foam thermal ratings, installation practices, compliance standards, and customization capabilities.
Browse the remainder of our specialized thermal insulation systems. Contact us for wholesale discounts on container-load quantities.
Kingflex