Explore our specialized range of high-density, low-temperature elastomeric and acoustic insulation systems manufactured to meet rigorous global standards.
Analyzing industrial demands, technological transitions, and energy-saving mandates shaping modern cryo-isolation.
The global cryogenic insulation market is undergoing rapid expansion, driven primarily by the transition toward Liquid Natural Gas (LNG), hydrogen power deployment, and aerospace exploration. Industrial plants require low thermal conductivity combined with absolute resistance to moisture penetration to prevent catastrophic pipeline corrosion under insulation (CUI) and energy losses.
Modern applications transition from traditional heavy, rigid insulation toward lightweight Multi-Layer Insulation (MLI) systems and advanced flexible elastomeric foam. Incorporating high-purity closed-cell structures (exceeding 98% closed cells) ensures long-term thermal stability, outstanding moisture barrier capabilities, and exceptional fire performance ratings (such as BS 476 and ASTM standards).
Adhering to international codes is no longer optional. Leading global insulation companies establish comprehensive traceability, strict laboratory testing, and robust Quality Management Systems certified by international classification bodies. This rigorous engineering capability guarantees material integrity under thermal shock down to -200°C.
Cryogenic insulation systems, specifically engineered for ultra-low and sub-zero piping environments, require a complex balance of physical durability, low thermal conductivity, and chemical stability. Kingflex Multi-Layer configurations and high-performance NBR/PVC elastomeric foams offer a resilient alternative to heavy, brittle materials like rock wool and cellular glass.
| Physical Property | Kingflex Standard Spec Range | Testing Standard |
|---|---|---|
| Material Type | Premium NBR/PVC Elastomeric Foam | - |
| Service Temp | -40℃ to 105℃ (Extended Cryo Range available) | ASTM C534 |
| Density | 40 - 55 kg/m³ | ASTM D1622 |
| Closed Cell Rate | > 98% | ISO 4590 |
| Resilience Rate | > 80% (Compression Recovery) | ASTM D1056 |
| Certifications | BS 476, CE, REACH, ROHS, UL94, ASTM | Global Norms |
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for high-performance thermal insulation products. Located in Dacheng, China—the recognized capital of green building materials—Kingflex is an energy-saving, environmentally friendly enterprise concentrating on research, development, production, and global sales. We provide comprehensive insulation solutions via professional consulting, in-house R&D, structural installation guidance, and dedicated post-sale support.
Founded by the Jinwei Group, which boasts over 40 years of manufacturing history since its establishment in 1979, Kingflex carries forward a rich legacy. Jinwei was the first manufacturer of thermal insulation materials north of the Yangtze River, paving the way for today's advanced multi-layer and low-temperature solutions.
With 8 professional engineers in our R&D Department, 6 international sales specialists, and over 230 skilled production workers, we maintain rigorous control over every square meter of foam produced. Kingflex is a designated manufacturing partner approved by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry in China.
Technical breakdowns of our primary elastomeric rubber foam sheets and pipelines.
| Material | NBR/PVC |
| Thickness | 6mm - 50mm |
| Density | 40 - 55 kg/m³ |
| Temp Range | -40℃ to 105℃ |
Applications: Central AC ducting, wall/roof insulation, process pipe protection in HVAC, rail transit, cold storage, and chemical industries.
| Material | NBR/PVC |
| Thickness | 9mm - 40mm |
| Inner Diameter | 6mm - 114mm |
| Temp Range | -40℃ to 105℃ |
Applications: Chilled/hot water pipes, HVAC condensate pipelines, solar and hot water systems, and cold chain/petrochemical installations.
Our materials undergo rigorous testing by third-party laboratories to ensure full compliance with international safety, environmental, and thermal standards.
ISO Quality Standard
BS 476 Fire Rating
SGS REACH Compliance
UL94 Flammability Test
See why global procurement departments and HVAC contractors trust Kingflex for their low-temperature systems.




Addressing engineering specifications, selection criteria, and thermal insulation capabilities.
A1: It is mainly utilized in HVAC ducts, air conditioning piping systems, commercial building thermal insulation, industrial pipeline cold insulation, and high-performance acoustic isolation systems.
A2: Yes, our elastomeric materials are engineered with built-in flame retardants. They are self-extinguishing upon flame removal and comply with critical global standards including BS 476, UL94, and ASTM.
A3: Rubber foam is highly flexible, closed-cell, and naturally moisture-proof, making it optimal for prevention of condensation on HVAC and cold-service pipelines. Rock wool is a fibrous, open structure suited primarily for extreme high-temperature and dry structural fireproofing applications.
A4: Yes, we provide full OEM support, adjusting density, thickness, dimensions, and outer cladding (e.g., aluminum foil coatings) to meet specific architectural or chemical project requirements.
A5: Kingflex materials are tested and certified under BS 476, CE, REACH, RoHS, UL94, ASTM, and related global performance standards, ensuring complete compliance for international bids.
A6: Yes, we maintain batch-controlled raw material sourcing and manufacturing records to provide clients with end-to-end quality assurance and traceability.
A7: Our production lines are capable of continuous output in thicknesses ranging from 6mm to 50mm.
A8: Under standard operational conditions and recommended installation, Kingflex products maintain reliable thermal performance for approximately 10 to 15 years.
Verify specifications and request custom pricing for our specialized low-temp line.
Original imagery showcasing our industrial processes and specialized elastomeric variations.
Rubber elastomeric foam insulation tube
Corrosion Resistant Tube
Elastic Rubber Foam Pipe
Black Rubber Foam Pipe
Foam Rubber Insulation Tube
HVAC Rubber Foam Tube
Elastomeric Cryogenic System
Flexible Cryogenic Material
Cryogenic Rubber Foam
Elastomeric Cryo Insulation
Rock Wool Insulation Board
Rock Wool Blanket