Kingflex
Engineered thermal barriers and elastomeric systems designed for harsh maritime environments.
Thermal and acoustic insulation in the global shipbuilding and marine offshore industry is governed by complex safety codes, harsh environmental stressors, and the constant threat of condensation. Yachts, military vessels, container ships, and industrial offshore rigs require highly specialized insulation solutions capable of resisting extreme structural vibrations, saltwater spray, and variable humidity cycles.
Modern shipbuilders are transitioning away from high-density fibrous insulation materials toward engineered closed-cell elastomeric rubber foams (NBR/PVC based). This migration is driven by the need to prevent Corrosion Under Insulation (CUI), reduce overall structural weight to optimize fuel consumption, and achieve superior noise reduction coefficient (NRC) values in dynamic marine engine room enclosures.
Marine insulation is not merely a single-product purchase but a comprehensive containment system. Kingflex Insulation Co., Ltd. addresses this requirement by acting as an integrated provider of thermal, cryogenic, and noise reduction solutions for ship hulls, HVAC ductworks, hot utility pipelines, chilled water circuits, and cryogenic fuel tanks (LNG/LPG carrier vessels).
By offering specialized materials like low-density NBR/PVC sheets reinforced with high-reflectivity aluminum foil, marine engineers can address thermal radiation while creating an outer protective barrier against physical wear and chemical corrosives. For acoustic control in high-volume mechanical spaces, flexible rubber-based acoustic sheets provide structural damping, turning vibration energy into harmless thermal energy before it translates into structural resonance.
Underpinned by Jinwei Group's 40-year legacy of manufacturing leadership.
Established in 1979 by Jinwei Group, Kingflex is located in Dacheng, China—the capital of green building materials. Over four decades of research and production refinement have enabled us to supply comprehensive thermal solutions globally, keeping energy saving and environmental compatibility at our core operation.
We provide a integrated range of consulting, R&D, product manufacturing, and field installation guidance to drive performance parameters across construction, chemical, petroleum, aerospace, and defense applications.
The strength of Kingflex rests in our combined engineering knowledge and modern factory infrastructure. Our operations are led by an elite R&D team consisting of 8 professional engineers, supported by 6 international sales consultants, and powered by 230 skilled production workers who manage our automated assembly lines.
This operational unity guarantees that every batch of NBR/PVC elastomer produced meets global commercial requirements and adheres strictly to international fire and safety parameters.
Providing validated material performance data under strict international criteria.
Kingflex products undergo testing under ASTM, BS 476 (Class 0 and Class 1 designations), UL94, and CE standards, proving robust self-extinguishing parameters.
By configuring a high density of closed cells (>98%), the water vapor permeability factor (µ-value) is maintained high, preventing insulation waterlogging.
Offering specialized elastomeric formulations designed for ultra-low and sub-zero LNG handling systems down to extreme operating temperatures.
Technical specifications of Kingflex Black Rubber Foam and Insulation Sheet Rolls.
Ideal for ship HVAC system air ducts, bulkheads, vessel hulls, process water pipelines, machine control room soundproofing, and cold chain shipping containers.
Perfect for marine chilled water loops, engine coolant piping, steam process lines, fresh water plumbing protection, and sound absorption in machinery spaces.
Continuous R&D combined with global validation ensures reliability under extreme marine conditions.
Answers to technical and engineering questions regarding marine rubber foam products.
Elastomeric NBR/PVC foam has a tightly packed, closed-cell molecular structure. This property prevents the absorption of ambient airborne moisture and liquid seawater, maintaining stable thermal conductivity over decades. It also does not degrade under vibration, which is a major issue with mineral wools.
Yes, Kingflex rubber foam insulation is formulated with built-in flame retardants. It achieves BS 476 Class 0 and Class 1, UL94 V-0 ratings, and CE certification, aligning with fire safety parameters for yacht cabins and commercial engine room components.
Rubber foam is flexible, highly moisture-resistant, and ideal for HVAC systems, cold water piping, and condensed deck plates. Rock wool exhibits higher heat resistance (suitable for high-temperature exhaust paths) but lacks moisture resistance. It must be carefully sealed to prevent CUI (Corrosion Under Insulation).
Yes, we provide full OEM and ODM services. We can configure densities from 40 to 55 kg/m³, provide self-adhesive backing, apply specialized aluminum foils, and supply custom thicknesses from 6mm to 50mm to match exact vessel blueprint requirements.
All Kingflex shipments are fully traceable back to raw materials and formulation batches. Quality verification is managed through ISO-certified R&D testing. Product parameter certificates include BS 476, CE, REACH, RoHS, UL94, and ASTM.
Technical products for cryogenic gas handling, HVAC containment, and high-performance damping.
