Explore our core selection of high-performance closed-cell elastomeric rubber foam insulation board and piping systems.
Modern commercial infrastructure and industrial processing systems place rigorous demands on thermal performance, energy conservation, and system safety. In the procurement of insulation blankets, engineering procurement construction (EPC) contractors and facility owners face a volatile environment marked by shifting environmental legislation, high operating temperature fluctuations, and strict fire safety compliance protocols.
For operations extending from chemical processing facilities to central HVAC networks, specifying the correct insulation blanket involves optimizing thermal resistance values while mitigating hazards such as Moisture Vapor Transmission (MVT) and Corrosion Under Insulation (CUI). Manufacturers in China, particularly within specialized production clusters like Dacheng, Hebei, have scaled automated production lines to deliver solutions that meet international standards (including ASTM, BS 476, and European CE directives) at competitive rates, offering critical cost-efficiencies in global logistics networks.
Integrating chemical, thermal, and mechanical engineering principles across diverse industries.
Condensation control in chilled water lines and HVAC air ducts is crucial to prevent structural mold growth and maintaining structural integrity. Our closed-cell rubber elastomeric blankets provide an integrated vapor barrier, ensuring stable thermal performance over lifetimes exceeding 15 years.
Cryogenic operations (temperatures down to -196°C) run the risk of thermal shock and ambient vapor penetration. Our specialized cryogenic rubber foam system protects large-scale cryogenic storage tanks and LNG transport pipelines from boil-off gas (BOG) losses.
Managing high thermal loads requires products that do not degrade or lose mechanical resilience under continuous heat stress. Flexible sheets layered with aluminum cladding shield pipelines from harsh UV rays and chemical corrosion.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our research, development, and production facility is located in Dacheng, China—a region recognized as the capital of green building materials. As an energy-saving and environmentally friendly enterprise, Kingflex concentrates on the research, development, production, and sale of advanced insulation materials.
Kingflex was established by the Jinwei Group, which possesses more than 40 years of industry history. Founded in 1979, the Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River. Over the decades, we have aligned our operations with energy conservation and consumption reduction as core concepts. Today, we provide comprehensive design consultancies, R&D production, installation guidance, and post-sale services to help lead the development of the global building materials industry.
Our employees are outstanding in their fields, and together they make Kingflex a rewarding place to work. Our team is a close-knit, talented group with a shared vision of providing consistently first-class service to our clients. Our facility runs with 8 professional engineers in the R&D Department, 6 international sales specialists, and 230 skilled production technicians, ensuring that our products meet design specifications and delivery schedules.
A closer look at the raw specifications and structural attributes of our primary NBR/PVC elastomeric rubber foam lines.
Manufactured using an automated foaming process, our sheet rolls provide thermal protection across massive surface areas. They feature an even, closed-cell structural grid that prevents liquid water migration.
| Parameters | Standard Specification |
|---|---|
| Base Material | Elastomeric Nitrile Rubber / Polyvinyl Chloride (NBR/PVC) |
| Thickness Range | 6mm to 50mm |
| Material Density | 40 to 55 kg/m³ |
| Service Temp Range | -40℃ to 105℃ |
| Closed-cell Rate | Over 98% |
| Compression Resilience | Over 80% |
Optimized for rapid installation over standard industrial piping, these pre-slit or solid tubes offer flexibility and thermal protection. An automated pipe spraying system guarantees uniform wall thickness.
| Parameters | Standard Specification |
|---|---|
| Base Material | NBR/PVC Elastomeric Foam |
| Thickness Range | 9mm to 40mm |
| Inner Diameter (ID) | 6mm to 114mm |
| Material Density | 40 to 55 kg/m³ |
| Fire Performance | Self-extinguishing, flame retardant class |
| Moisture Barrier | High resistance factor (μ value) |
Our quality assurance protocol includes testing in our on-site laboratories to monitor key metrics, including density limits, K-value drifts, aging rates, and flammability parameters. Every production batch is fully traceable from raw NBR compounding to final packaging.
Kingflex products are certified under major international regulatory frameworks. They comply with fire-retardant standards including BS 476, CE, REACH, RoHS, UL94, and ASTM. These certifications guarantee that the material does not release toxic fumes or burn rapidly under fire stress, ensuring compliance with global building codes.
Comparing next-generation insulants and exploring the development of smart insulation blankets.
Selecting the right insulation material requires analyzing key criteria including thermal conductivity, vapor resistance, flexibility, and cost-efficiency. While rock wool is ideal for high-temperature applications, its fibrous structure makes it susceptible to moisture absorption, which can cause Corrosion Under Insulation (CUI). Aerogel offers high thermal performance, but it can be cost-prohibitive for large-scale operations.
NBR/PVC Closed-Cell Rubber Foam provides a balanced combination of flexibility, moisture vapor barrier protection, and cost-effectiveness, making it a preferred option for HVAC, building, and cryogenic applications.
In line with global decarbonization policies, Kingflex is adapting its formulation strategies to utilize eco-friendly blowing agents with low global warming potential (GWP) and zero ozone depletion potential (ODP). By incorporating bio-based raw materials, we aim to reduce the carbon footprint of our manufacturing processes without compromising thermal performance or mechanical durability.
Verified communication records highlighting our commitiment to technical service and delivery times.
Our solutions implemented across international infrastructure developments, heavy industries, and commercial high-rises.
Visual documentation of our manufacturing facilities and product inventory.
Targeted product designs for cryogenic storage, acoustic damping, and traditional thermal insulation.
Critical procurement details, material comparisons, and quality assurance workflows.
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. Its closed-cell structure prevents condensation on cold surfaces, making it suitable for high-humidity environments.
Yes, our rubber foam insulation materials are fire retardant and meet safety standards for building and industrial projects. They comply with international test standards including BS 476 (Class 0 and Class 1), UL94 (V-0 rating), and ASTM E84, which verify low flame spread and smoke development indices.
Rubber foam is flexible, closed-cell, and moisture-proof, which helps prevent condensation in HVAC and cooling applications. Rock wool is high-temperature resistant and fireproof, making it suitable for industrial high-temperature steam pipelines. Rubber foam does not release fibers, making it a preferred choice for cleanroom and indoor air quality environments.
Yes, we offer OEM and ODM services. We customize dimensions, sheet thicknesses (from 6mm to 50mm), pipe inner diameters (6mm to 114mm), densities, and offer options for laminating protective foils or self-adhesive backings to meet specific project designs.
Our products are certified under BS 476, CE, REACH, RoHS, UL94, and ASTM. These certifications verify product safety, quality, and compliance for import and use in regions including the EU, North America, the Middle East, and Southeast Asia.
Yes, Kingflex products feature full traceability. Each production batch is assigned a unique batch identifier linked to raw material inputs, processing parameters, and lab testing records, ensuring reliable quality control.
We produce sheet rolls in thicknesses ranging from 6mm to 50mm. Thicker sheets are typically deployed in heavy industrial settings or cryogenic environments to manage high thermal gradients.
Under recommended operating temperatures (-40℃ to 105℃) and standard environmental conditions, our insulation sheets and pipes have a service life of 10 to 15 years, retaining their physical flexibility and low thermal conductivity.
Dacheng is a key cluster for green building materials in China. This concentration of raw material supply, skilled labor, and specialized logistical infrastructure helps lower manufacturing costs, allowing us to offer competitive pricing for large-scale international projects.
Our large production capacity across 5 automated assembly lines allows us to supply massive infrastructure developments, district cooling networks, and petrochemical complexes without causing project delays.
NBR/PVC elastomeric rubber foam sheets, rolls, and tubes designed for HVAC and ultra-low temperature piping.
Kingflex
