Kingflex
Select from our certified engineering-grade insulation accessories, tapes, and specialty adhesives tailored for commercial and industrial HVAC/ULT systems.
In modern commercial HVAC, cryogenic installations, and industrial process piping, the performance of the thermal insulation system is only as strong as its weakest link. While high-quality elastomeric NBR/PVC rubber foam sheets and tubes form the core barrier, the system's longevity relies heavily on installation accessories. Specially formulated adhesives, specialized joint sealing tapes, and precision-engineered vapor barrier accessories prevent thermal bridging and seal joints against moisture ingress.
Without appropriate accessories, system joints are prone to separation due to thermal expansion and contraction cycles. This leads to condensation forming on cold pipe surfaces, which accelerates corrosion under insulation (CUI), degrades thermal efficiency, and facilitates mold growth. By using matching high-performance accessories, such as Kingflex Thermal Insulation Glue 520 and Kingflex Aluminum Foil Thermal Insulation Tape, engineers ensure a continuous, resilient vapor barrier that protects investments over their design life.
Established by the Jinwei Group, which possesses a proud history of over 40 years, Kingflex Insulation Co., Ltd. represents the peak of thermal insulation engineering. Founded in 1979, the Jinwei Group pioneered thermal insulation materials manufacturing north of the Yangtze River. Today, the modern production base of Kingflex is strategically situated in Dacheng, China—a hub recognized globally as the capital of green building materials.
Kingflex stands as an energy-saving, environmentally conscious entity merging research, development, production, and international trade. Taking "energy conservation and consumption reduction" as its core development mission, Kingflex supplies system solutions spanning structural consulting, product development, installation guidance, and comprehensive after-sales support.
Our international footprint spans across sixty-six countries, supported by a highly specialized workforce. Our internal organization is built to maintain top-tier service standards:
Kingflex rubber foam insulation accessories and core systems are manufactured utilizing premium NBR/PVC elastomeric blends. This formulation produces an evenly distributed, fine closed-cell structure (exceeding a 98% closed-cell rate) characterized by low thermal conductivity and high moisture vapor resistance.
| Technical Parameter | Kingflex Standard Spec (NBR/PVC) | Standard Reference / Testing Protocols |
|---|---|---|
| Thickness Availability (Sheets) | 6mm to 50mm | ASTM C534 |
| Thickness Availability (Pipes) | 9mm to 40mm | ASTM C534 |
| Pipe Inner Diameter (ID) Range | 6mm to 114mm | Standard Piping Layout Compatibilities |
| Bulk Density | 40 - 55 kg/m³ | GB/T 6343 / ASTM D1622 |
| Service Temperature Range | -40℃ to 105℃ (Ultra-low temperature systems down to -200℃) | DIN EN 14706 / ASTM C411 |
| Compression Resilience Rate | ≥ 80% | ASTM D1056 |
| Vapor Permeability Resistance Factor | μ ≥ 10,000 | EN 12086 / ASTM E96 |
| Flame Retardancy | Class 0 / Class 1 (Self-extinguishes off fire) | BS 476 Part 6 & 7, UL94 V-0, ASTM E84 |
Kingflex manages 5 large automatic assembly lines, utilizing vertical foaming ovens, automatic mixing extruders, and digital slitting lines. This tooling enables an annual production capacity exceeding 600,000 cubic meters. Through this industrial scale, Kingflex has earned status as a designated supplier of thermal insulation solutions for major organizations, including the Chinese Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.
By bypassing mid-tier distribution layers, we pass manufacturing cost savings directly to EPC contractors and wholesalers worldwide.
Every product batch is systematically coded. From raw polymer feedstocks to final curing, all batches carry full digital traceability profiles.
We configure custom densities, dimensions, customized tape adhesive layers, and tailored packaging designs to align with localized regulations.
Design engineers must select insulation materials based on thermal parameters, structural limits, and moisture exposures. The comparison below highlights the primary differences between rubber foam and rock wool:
Cellular Structure: Closed-cell (>98%), integrated vapor barrier.
Moisture Performance: Inherently moisture-resistant. Retains thermal conductivity values even in high-humidity HVAC environments.
Installation: Highly flexible, easily slit, and adhered using Kingflex Glue 520. Ideal for complex geometries.
Primary Application: HVAC systems, chilled water lines, cryogenic systems (-200℃), indoor acoustics.
Cellular Structure: Open-cell fiber matrix, requires secondary cladding.
Moisture Performance: Highly permeable. Water absorption degrades thermal properties and can lead to CUI.
Installation: Semi-rigid or rigid panels. Requires mechanical fasteners and protective metal jacketing.
Primary Application: High-temperature steam pipes, fire containment structures, furnace insulation.
Navigating regional fire and chemical safety frameworks is essential for international construction and mechanical projects. Kingflex insulation systems maintain compliance credentials through rigorous external testing:
Kingflex elastomeric systems are utilized across diverse industries, including building construction, cryogenic processing, and transport infrastructure. Below are the key application areas:
Provides condensation control and limits heat transfer on chilled water pipes, hot water systems, and indoor ductwork networks.
Specialized NBR formulations resist thermal stress cracking down to -200℃, serving liquid nitrogen transport lines and LNG storage units.
Our heavy Gym shockproof damping pads provide sound insulation and mechanical vibration isolation in recreational and industrial settings.
During cold pipeline installation, using correct installation procedures is critical. Poorly sealed joints can allow ambient air to enter the insulation, causing condensation. When water freezes at sub-zero operating temperatures, its volume expands by approximately 9%. This expansion crushes the surrounding foam cells, damaging the insulation.
By using Kingflex Thermal Insulation Glue 520 to secure all seams, followed by NBR/PVC Elastomeric Foam Tape, the insulation is sealed against moisture ingress. This preserves the thermal barrier and ensures long-term operational efficiency.
Kingflex insulation accessories have been deployed in major international projects, including high-capacity data centers, cleanrooms, and district cooling systems. The following gallery documents our manufacturing runs and material validation steps:
The Jinwei Group has focused on thermal insulation development for over four decades. Our experienced engineering teams and operators ensure consistent material performance. By maintaining clean production lines and automated material feeds, we deliver reliable insulation solutions for international commercial markets.
Explore our full line of elastomeric insulation tubes, panels, and project accessories for direct quotes.
