Engineered to resist dynamic thermodynamic pressures, salt spray corrosion, and severe cryogenic thermal shock.
Established under the parent umbrella of the Jinwei Group, which boasts a rich legacy spanning over 40 years, Kingflex Insulation Co., Ltd. has developed into a dominant manufacturer and trading entity for high-efficiency thermal insulation materials. Strategically based in Dacheng, China—the recognized global capital of green-building materials—we operate as a specialized enterprise focusing on green research, energy efficiency, and low-carbon emissions.
Our core philosophy centers around green energy conservation. We deliver holistic, turn-key industrial insulation solutions spanning initial design consultation, tailored R&D, automated production, on-site installation guidance, and global post-sale service support. We have built an expansive framework capable of serving complex engineering configurations, making us the partner of choice for maritime builders and HVAC engineers worldwide.
Addressing the complex engineering issues of modern shipping: vibration, seawater corrosion, thermal transfer, and fire risk.
Corrosion Under Insulation (CUI) remains one of the costliest integrity issues facing the global maritime industry. Salt-laden air combined with temperature fluctuations creates a micro-climate between the insulation layer and steel piping. Open-cell materials absorb moisture and speed up this corrosion.
Kingflex's elastomeric rubber foam solutions solve this issue. Featuring an even closed-cell structure with a closed-cell rate exceeding 98%, they create a built-in vapor barrier. This keeps water away from the metal surface, which effectively reduces CUI and extends the service life of shipboard piping systems to 10–15 years.
Understanding which material fits your marine configuration: HVAC systems, high-temperature exhaust pipelines, or cryogenic lines.
| Material Classification | Cellular Structure | Temp. Range | Moisture Performance | Core Application | Primary Fire Standard |
|---|---|---|---|---|---|
| Kingflex NBR/PVC Rubber Foam | Closed-Cell (>98%) | -40℃ to +105℃ | High resistance (Built-in Vapor Barrier) | HVAC, Chilled Water, Refrigerants, ULT Systems | BS 476 Part 7 Class 1, UL94 V-0 |
| Kingflex Rock Wool Blanket/Pipe | Fibrous Open-Structure | Up to +650℃ | Low resistance (Requires Outer Cladding) | Engine Exhaust, Steam Pipes, Fireproof Decks | Non-combustible Class A1 (EN 13501-1) |
| Cryogenic Elastomeric Systems | Micro Closed-Cell | -200℃ to +125℃ | Ultra-high resistance (Multi-layered seal) | LNG Carriers, Liquid Nitrogen Pipelines | ASTM E84, BS 476 Class 0 |
Kingflex Insulation Co., Ltd. operates five modern automated production lines. Our yearly production capacity exceeds 600,000 cubic meters, which is backed by standard procedures approved by key industrial ministries.
Our dedicated team consists of 8 R&D engineers, 6 international trade specialists, and 230 production workers. This setup ensures that we maintain consistent product quality and reliable supply chains across 66 countries.
Our research and development team is focused on improving cellular consistency. By refining the vulcanization and foaming process, we ensure uniform cell size, which improves both mechanical resilience and thermal performance across all batches.
Our material testing labs verify thermal performance, fire resistance, and durability before shipping.
Our systems comply with the strict environmental and safety codes required by regional maritime registers.
Tested against BS 476 Parts 6 & 7 and UL94 V-0, ensuring that the material is self-extinguishing and does not propagate flame in compact ship cabins.
Formulated without halogenated fire retardants or heavy metals. Safer for marine crews during install and long-term service.
Every roll and pipe batch is marked with an identification code, allowing tracking from raw polymer base to installation.




Specific physical properties, thickness ranges, and application matrices for our main product lines.
Our flexible insulation rolls are designed for large areas, HVAC air ducts, building walls, and large industrial storage tanks.




Used for wall and roof thermal insulation in commercial ship decks, noise reduction in HVAC utility spaces, anti-freezing for building water piping, and thermal lagging on dynamic carrier pipes.
These pre-formed tubes are extruded to slide easily onto copper, steel, or composite pipes, protecting against condensation and frost.




Condensation control on chilled water pipes, hot water piping systems, solar energy setups, and cryogenic refrigerant loops on LNG vessels.
Verified on-site applications of Kingflex insulation systems across diverse international projects.












Integrating eco-friendly practices and advanced thermal materials into our future product development.
We are researching aerogel integration within the elastomeric matrix. This aims to lower thermal conductivity by 20–30%, helping ships reduce weight and save space in critical areas.
To support green shipbuilding goals, our team is testing bio-derived elastomers that offer standard mechanical performance while reducing carbon footprint during production.
We are optimizing chemical structures to reduce smoke density. This aims to meet the strict flame, smoke, and toxicity (FST) safety requirements of offshore platforms.
Engineers and procurement specialists answer key questions on design, specifications, and installations.
Verify dimensions and technical values for ultra-low temperature, fireproof, and sound-absorbing configurations.
Specialty coatings and material options for complex architectural and industrial layouts.