Kingflex
Explore our industrial-grade, certified closed-cell elastomeric rubber foam formulations designed for heavy-duty HVAC, plumbing, and cryogenic systems.
Closed-cell insulation, primarily formulated from Nitrile Butadiene Rubber (NBR) blended with Polyvinyl Chloride (PVC), represents the apex of modern thermal control engineering. The cellular matrix features independent cells that trap static air, creating a permanent barrier against thermal movement.
Unlike open-cell configurations, the closed-cell rate of our high-density rubber foam exceeds 98%. This configuration offers crucial mechanical advantages:
This structure prevents moisture ingress, which causes mold and thermal degradation, making it highly reliable for sub-zero and cryogenic processes.
Kingflex Insulation Co., Ltd. is a modern manufacturing and trading powerhouse focused on energy-saving, environmental-grade thermal insulation materials. Backed by the Jinwei Group, which was established in 1979, we represent over 40 years of pioneering research in green thermal insulation technologies.
Located in Dacheng, China—the historic manufacturing capital for energy-efficient building materials—our production operations feature:
Sourcing from Dacheng offers major procurement benefits for global project managers and distributors.
Dacheng hosts a complete manufacturing ecosystem. With raw materials like synthetic elastomers, foaming agents, and flame retardants sourced locally, we secure lower raw material costs and guard against global shipping volatility.
Our facility runs continuous vulcanization and extrusion lines. These systems produce insulation sheets and pipes with excellent cell uniformity, preventing thermal bridging and weak points found in batch-molded alternatives.
We manufacture products under strict quality standards. Our ranges carry BS 476 (Class 0/1), UL94 (V-0 rating), CE, RoHS, and REACH certifications, meeting global regulatory requirements.
A reference table outlining physical properties and dimensions for both elastomeric insulation sheets and pipe tubes.
| Insulation Parameter | NBR/PVC Elastomeric Foam | Rock Wool Core Board | Glass Wool Blankets |
|---|---|---|---|
| Thermal Conductivity (at 0℃) | ≤ 0.034 W/(m·K) | ≤ 0.044 W/(m·K) | ≤ 0.038 W/(m·K) |
| Water Vapor Permeability (μ) | ≥ 10,000 (Built-in Vapor Barrier) | Permeable (Needs External Jacket) | Permeable (Needs External Jacket) |
| Operating Temperature | -40℃ to +105℃ | Up to +650℃ | Up to +250℃ |
| Flexibility & Install Effort | High flexibility, fast slip-on/cut-fit | Rigid board, high labor, dust emissions | Semi-flexible, requires protective gear |
| Resilience (Compressive) | ≥ 80% (Rebounds after mechanical stress) | Very low (Crushes permanently) | Low (Fibers compress over time) |
Our high-performance elastomeric insulation operates reliably across diverse industrial and commercial environments.
Controls condensation and reduces thermal loss on large-scale air ducts, chilled water lines, and HVAC pipe systems in shopping malls, hospitals, and office towers.
Specially formulated low-temperature rubber sheet systems prevent cracking and piping stress in LNG transport, cryogenic storage tanks, and refrigeration networks.
Protects metal pipelines from corrosion under insulation (CUI) and manages heat loss in high-demand process piping and steam distribution systems.
Kingflex runs dedicated testing laboratories to ensure every batch meets strict performance parameters. Our standard quality checks include:
Our products undergo external testing by international labs to verify safety and regulatory compliance.
Our specialists handle all stages from formulation design to final delivery. Our crew includes:
Field installations of Kingflex elastomeric materials in commercial HVAC, industrial piping, and cold storage applications.
Verifiable procurement discussions and feedback from our international B2B buyers.
Take an inside look at our specialized manufacturing, storage, and logistics operations in Dacheng.
Technical guidance and sourcing support for design engineers, contractors, and procurement officers.
Explore our industrial mineral wool, low-conductivity rubbers, and specialized cryogenic foam configurations.
