Kingflex
Kingflex
Modern mechanical, electrical, and plumbing (MEP) design mandates strict adherence to safety, visibility, and thermal performance metrics. Global commercial building codes and industrial design criteria increasingly require visual line identification to streamline diagnostics, preventive maintenance, and regulatory inspections.
China Red Color Rubber Foam Insulation Tubes are engineered specifically to address these requirements. By utilizing a bright red pigment integrated uniformly throughout the elastomeric nitrile rubber matrix during the extrusion process, these tubes serve a dual purpose: providing thermal insulation (preventing heat gain/loss and condensation) and acting as a visible marker for hot water supply pipes, fire suppression mains, or specific heating zones.
From HVAC distribution hubs in North America and Western Europe to megastructures across APAC and the Middle East, procurement directors seek suppliers capable of providing high-density NBR/PVC closed-cell structures that comply with localized safety frameworks such as BS 476, ASTM E84, and European fire classifications (Class B/C).
Low thermal conductivity ($\lambda \le 0.034 \text{ W/(m·k)}$ at $0^\circ\text{C}$) ensures high thermal efficiency. The closed-cell microclimate locks in air packets to prevent heat transfer across HVAC and plumbing lines.
Meets international flammability requirements (BS 476 Part 6 & 7 Class 0/Class 1, UL94 V-0, DIN 4102). Features built-in flame arrestors and self-extinguishing capabilities to minimize smoke toxicity.
High resistance factor ($\mu \ge 10,000$) creates an impervious moisture barrier. This closed-cell density prevents moisture ingress, mitigating condensation and corrosion under insulation (CUI).
"Integrating color-coded red and blue elastomeric insulation lines eliminates system identification errors during post-commissioning audits, reducing engineering downtime by up to 35% in large industrial complexes." — Kingflex Engineering Technical Bulletin
| Property Matrix | Test Standard | NBR/PVC Elastomeric Foam Specifications |
|---|---|---|
| Thermal Conductivity ($\lambda$) | ASTM C518 / ISO 8301 | $\le 0.034 \text{ W/(m·K)}$ at $0^\circ\text{C}$ | $\le 0.036 \text{ W/(m·K)}$ at $20^\circ\text{C}$ |
| Water Vapor Permeability ($\mu$) | BS EN 12086 / ASTM E96 | $\ge 10,000$ (Moisture barrier built-in without secondary vapor retarders) |
| Fire Classification | BS 476 Part 6/7, UL94, GB 8624 | Class 0 / Class 1 / V-0 Rated / Grade B1 (Flame Retardant, Self-Extinguishing) |
| Service Temperature Limit | ASTM C534 | Continuous operating limits from $-40^\circ\text{C}$ up to $+105^\circ\text{C}$ |
| Density Profile | ASTM D1622 | $40 - 55 \text{ kg/m}^3$ (Uniform closed micro-cell matrix) |
| Chemical / Ozone Resistance | ASTM D1149 | Excellent resistance to aging, oil, acids, alkalis, and atmospheric ozone |
The underlying performance of Kingflex Red Color Rubber Foam Insulation rests on the polymer blending chemistry of Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC). This synthetic elastomer alloy provides the structural durability of PVC alongside the flexible, thermal-insulating, and oil-resistant properties of NBR.
Through automated continuous vulcanization and expansion lines, blowing agents are introduced under high pressure. This forms a structure containing over 98% closed cells. These individual cell walls contain nitrogen gas, which inhibits heat conduction. Unlike open-cell foams, which absorb moisture, this structure repels water ingress, ensuring stable thermal performance over time.
For fire safety compliance, halogenated compounds and fire retardants are integrated directly into the polymer formulation. In the event of a fire, the outer layer charring slows down combustion, reducing smoke density and flame spread.
Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex's research development and production department is located in the well-known capital of green-building materials in Dacheng, China. It is an energy-saving, environmentally friendly enterprise concentrating on research, development, production, and sales. In operation, Kingflex takes energy saving and consumption reduction as its core concept. We provide solutions regarding insulation by means of consultation, research and development, production, installation guidance, and post-sale service to lead the development of the global building materials industry.
Kingflex was established by the Jinwei Group, which has more than 40 years of history. Jinwei Group was established in 1979 and was the first manufacturer of thermal insulation materials north of the Yangtze River. Over the decades, the organization has expanded its technological capabilities, setting production benchmarks for industrial insulation products throughout mainland China.
Our employees are amazing in their own right, but together they are what makes Kingflex such a rewarding place to work. The Kingflex team is a tight-knit, talented group with a shared vision of giving consistently first-class service to our clients. Kingflex has 8 professional engineers in the R&D Department, 6 professional international sales specialists, and 230 workers in the production department.
At our testing centers, engineers evaluate each batch of products for density, flammability, thermal conductivity, and aging characteristics. By investing in modern extrusion and foaming machinery, we ensure our red, blue, and black elastomeric foam meets the standards required by international engineering firms.
Kingflex Standard Dimension:
Advantages:
Foams evenly and fully, closed cell rate over 98%, excellent thermal insulation. Full closed-cell structure, low moisture absorption, stable long-term thermal conductivity. Compression resilience over 80%. Flame retardant, self-extinguishing off fire. Low thermal conductivity, high moisture resistance factor.
Applications:
Central air conditioning: Heat insulation for air ducts and pipes. Buildings: Wall, roof and basement thermal & sound insulation. HVAC & water supply: Anti-condensation and anti-freezing for pipes. Industrial plants: Insulation for equipment, steam pipes and storage tanks. Hotels, malls & hospitals: Insulation and noise reduction for ventilation ducts and machine rooms. Rail transit & cold storage: Thermal insulation for carriages and cold rooms. Chemical industry: Heat insulation, sound insulation and corrosion protection for process pipe.
Kingflex Standard Dimension:
Advantages:
Foams evenly and fully, closed cell rate over 98%, excellent thermal insulation. Professional pipe spraying equipment ensures even coating. Compression resilience over 80%. Flame retardant, self-extinguishing off fire. Low thermal conductivity, high moisture resistance factor. Greatly reduce pipe freezing and cracking risks.
Applications:
Central air conditioning chilled/hot water pipes and condensate pipes. Building HVAC & water supply pipes: antifreeze and anti-condensation. Ventilation and equipment room pipes for hotels, malls and hospitals. Thermal & cold insulation for industrial steam and process pipes. Cold insulation for cold storage and cold chain pipelines. Insulation, sound and corrosion protection for chemical & petrochemical pipes. Thermal insulation for solar and hot water system pipelines.
Kingflex manufactures all materials under a quality management system certified to ISO 9001 and environmental protection metrics matching ISO 14001. We maintain testing protocols to verify that every delivery meets global safety, environmental, and engineering standards.
Key Certifications and Global Compliance:
We serve EPC contractors, distributors, and engineering networks globally. The chat interactions below showcase project confirmations and successful shipping updates with our international commercial clients.
