Deploying state-of-the-art material science to establish industry-leading thermal regulation, fire protection, and environmental resistance across global pipeline infrastructure.
In modern construction and industrial engineering, Polyvinyl Chloride (PVC) piping is widely selected for its cost-effectiveness, lightweight nature, and chemical resistance. However, PVC's inherent structural limitations under high thermal stress pose a significant hazard in fire scenarios. As thermoplastic materials, PVC pipes soften, melt, and structurally fail at temperatures as low as 140°C, creating physical breaches in fire-rated walls and floor assemblies. These penetrations act as conduits, facilitating the rapid transfer of flame, toxic gases, and heavy smoke from one building compartment to another.
Deploying heavy-duty, intumescent fire wrap insulation provides a passive fire protection (PFP) framework. In the event of a fire, the thermal barrier reacts to elevated temperatures by swelling up to multiple times its original thickness. This expansion exerts compression on the collapsing PVC pipe, filling the interstitial void entirely and sealing the penetration with a dense carbonaceous char. This block stops the spread of fire, conforming strictly to rigid fire barrier integrity guidelines.
To ensure high structural reliability, fire wrap systems are subjected to testing methodologies that simulate high-temperature environments.
Global engineering, procurement, and construction (EPC) contractors are face changing regional standards and green-building protocols like LEED and BREEAM. Today’s supply chain requires manufacturers that deliver verified product traceability, low chemical emissions (Low VOC), and raw material verification (such as RoHS and REACH compliance).
The trend toward modular construction and prefabrication demands insulation systems that are easy to install, minimizing site labor. Purchasing departments prioritize manufacturers who can offer flexible, high-volume shipping, custom sizing, and clear engineering compliance certification. This minimizes on-site delays and reduces installation error rates.
Kingflex Insulation Co., Ltd. serves as an integrated solution provider of thermal insulation, cold insulation, and noise reduction for buildings and industries.
High-density closed-cell structure providing excellent thermal insulation, flame retardance, and sound dampening properties.
| Material | NBR/PVC Blend |
| Thickness | 6mm to 50mm |
| Density | 40 - 55 kg/m³ |
| Temperature Range | -40℃ to 105℃ |
Uniformly extruded elastomeric tubing optimized for rapid installation, offering continuous protection against condensation and pipe freezing.
| Material | NBR/PVC Elastomeric |
| Thickness | 9mm to 40mm |
| Inner Diameter (ID) | 6mm to 114mm |
| Density | 40 - 55 kg/m³ |
Kingflex insulation systems are engineered to address the specific performance needs of different industries:
The next generation of passive fire protection materials focuses on environmental sustainability and intelligent performance monitoring. As a pioneer in clean building materials, Kingflex is tracking several key development areas in our production and R&D pipelines:
Traditional brominated flame retardants are being phased out in favor of clean organophosphorus and inorganic metal hydroxide technologies. This change ensures that if a fire occurs, the material releases minimal smoke and zero toxic acidic gases.
Incorporating graphene nanoplatelets and nanoclay into elastomeric rubber matrices enhances the structural strength of the intumescent char. This improves the wrap's ability to resist physical pressure during a fire.
To simplify site management, every batch of Kingflex products includes digital marking codes. This allows inspectors to instantly access quality control documents, testing certifications, and material safety data sheets (MSDS) on site.
We implement strict quality assurance practices, including material characterization testing, chemical resistance analysis, and customer feedback tracking.
A1: It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. Its flexible structure ensures reliable moisture and thermal control.
A2: Yes, our rubber foam insulation products are fire retardant and meet safety standards for building and industrial projects, including BS 476, Class 0/Class 1 ratings, and UL94 criteria.
A3: Rubber foam is flexible, closed-cell, and highly moisture-proof, making it suitable for HVAC systems and building cold insulation. Rock wool is highly temperature-resistant and fireproof, designed primarily for high-temperature industrial pipelines.
A4: Yes, we provide OEM and ODM services, allowing customers to customize wall thicknesses, IDs, and material formulations to match their specific project requirements.
A5: Our products have passed BS 476, CE, REACH, ROHS, UL94, and ASTM certifications, ensuring compliant quality for global building and engineering codes.
A6: Yes, Kingflex products have full manufacturing traceability. Every production batch is coded to track raw materials, production variables, and quality assurance check points.
A7: We produce rubber foam insulation sheet rolls in thicknesses ranging from 6mm up to 50mm, accommodating a wide range of thermal insulation requirements.
A8: Under standard operational parameters, our elastomeric rubber insulation systems provide a service life of approximately 10 to 15 years, maintaining thermal efficiency throughout.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our research, development, and production facility is located in Dacheng, China—a well-known capital of green building materials. Focusing on energy saving and consumption reduction as core concepts, Kingflex is an energy-saving, environmentally friendly enterprise that concentrates on research and development, production, sales, and comprehensive post-sale consulting.
We provide complete insulation solutions, including design consultation, R&D, product manufacturing, installation guidance, and post-sale technical support, helping lead the development of the global building materials industry.
Kingflex was established by the Jinwei Group, which has more than 40 years of industrial history. Jinwei Group was established in 1979 and was the first manufacturer of thermal insulation materials north of the Yangtze River. This heritage provides our engineers with the experience needed to maintain high manufacturing standards.
Our employees are key to our success, and together they make Kingflex a rewarding place to work. The Kingflex team is a tight-knit, talented group with a shared vision of providing first-class service to our clients. Our staff includes 8 professional R&D engineers, 6 international sales representatives, and 230 workers in our production department.
Through collaborative engineering, we customize insulation products to meet regional architectural specifications. This technical support ensures smooth project execution from the design phase through final inspection.
Over the past 16 years, Kingflex thermal insulation products have been exported to more than 66 countries. They are used in construction, petroleum, chemical processing, defense, and aerospace applications, helping protect pipelines from structural degradation, fire hazards, and energy loss.
Deploying passive thermal and physical barrier controls for process lines, pipeline systems, and industrial plant designs.
Explore our full range of structural and industrial pipeline insulation products, engineered to meet international safety and environmental compliance standards.
Kingflex