Kingflex Kingflex

Kingflex Insulation Co., Ltd.

China Rubber Foam Insulation Sheet Roll Manufacturer & Manufacturers

Global Industrial Status of Rubber Foam Insulation

The global thermal insulation landscape is undergoing a paradigm shift driven by stringent energy efficiency regulations and carbon neutrality mandates. Elastomeric rubber foam insulation sheet rolls and pipes have emerged as the primary choice for modern mechanical insulation systems. As infrastructure projects demand long-term structural integrity and thermal optimization, the market is shifting from open-cell structures to fully closed-cell nitrile butadiene rubber / polyvinyl chloride (NBR/PVC) technologies.

In critical industrial installations, prevention of Moisture Vapor Transmission (MVT) is vital. Traditional insulation materials often suffer from structural thermal bridging and degradation caused by moisture infiltration, which leads to Corrosion Under Insulation (CUI). Our NBR/PVC closed-cell matrix offers a built-in vapor barrier, resolving these issues and securing high performance throughout a service life exceeding 15 years.

Kingflex Factory Manufacturing Center

Enterprise Overview & Manufacturing Powerhouse

Kingflex Insulation Co., Ltd. represents the absolute pinnacle of high-tech insulation manufacturing in China. With decades of group-backed experience, we provide turn-key global engineering solutions.

Our Heritage

Established by the prestigious Jinwei Group, which boasts a rich history spanning over 40 years since its inception in 1979, Kingflex stands as the premier pioneer of high-performance thermal insulation products north of the Yangtze River.

Advanced Production Capacity

Operating 5 fully automated advanced assembly lines, Kingflex yields an annual output exceeding 600,000 cubic meters. We are a designated production enterprise certified by the Ministry of Energy, Ministry of Electric Power, and Ministry of Chemical Industry in China.

Globally Accredited Systems

Our high-end NBR/PVC elastomeric formulations are certified to the absolute highest standards, satisfying international testing regimes including BS 476, CE, REACH, ROHS, UL94, and ASTM.

Kingflex Historic Development Path

Strategic Positioning & R&D Rigor

Located inside the national Capital of Green Building Materials in Dacheng, China, Kingflex operates as a fully integrated research, manufacturing, and distribution framework. We leverage energy-saving technologies to provide systemic consultancy, custom material synthesis, layout engineering guidance, and dedicated post-sale technical supervision.

"Providing the worldwide building and industrial mechanical sectors with the complete suite of thermal, cold-chain, and acoustic energy preservation configurations."
40+
Years Industry Expertise
600K+
m³ Annual Yield Capacity
66+
Export Destination Countries
98%+
Closed Cell Rate

Elastomeric Nitrile Rubber (NBR/PVC) Chemistry

Our engineered rubber foam sheets and rolls consist of a premium composite matrix of Acrylonitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC). This chemical structure is cross-linked and foamed via precision automated gas injection to achieve high density, uniform cell structures, and outstanding mechanical resilience.

Mechanical Characteristic Standard Reference Parameter Value / Performance Threshold
Material Formulation Nitrile Butadiene Rubber / Polyvinyl Chloride (NBR/PVC) Industrial Grade Premium Hybrid
Density Profile ASTM D1622 / EN 826 40 - 55 kg/m³
Thermal Conductivity (λ) ASTM C177 / EN 12667 ≤ 0.034 W/m·K at 0°C
Water Vapor Permeability (μ) ASTM E96 / EN 12086 ≥ 10,000 (Built-in Vapor Barrier)
Operational Temperature Range EN 14706 / EN 14707 -40°C to +105°C
Fire Safety Classification BS 476 Part 6 & 7 / UL 94 Class 0 / Class 1 / V-0 Rated Self-Extinguishing
Elastic Compression Resilience ASTM D1056 ≥ 80% recovery rate

R&D Innovation & Laboratory Oversight

Kingflex maintains a dedicated in-house research laboratory focused on polymers, thermodynamics, and acoustic analysis. Our specialized engineering group comprises 8 professional chemical and mechanical R&D engineers, supported by a workforce of 230 specialists.

Our developmental roadmap targets key parameters: optimizing mechanical flexibility in sub-zero environments, expanding chemical and UV resistance for outdoor systems, and enhancing flame retardancy while reducing smoke toxicity.

R&D Lab Testing 1 R&D Lab Testing 2 R&D Lab Testing 3

Macro-Level Industrial & Infrastructure Solutions

Our systems are engineered to perform in the demanding thermal conditions of high-density infrastructure, industrial plants, and maritime engineering.

HVAC & Commercial Plumbing

In modern commercial buildings, hospitals, and transit hubs, HVAC system optimization is essential. Kingflex rubber sheet rolls prevent condensation on air conditioning pipelines, chilled water lines, and ventilation ducts. This limits heat gains/losses and prevents moisture damage in false ceilings.

Cryogenic & Cleanroom Environments

For LNG, petrochemicals, and low-temperature process lines, we provide specialized cryogenic insulation systems. These systems maintain thermal control down to ultra-low operational parameters, preventing cracking and structural failure under intense thermal stress.

Acoustic Attenuation & Dampening

Our open-cell structures are engineered for high sound absorption coefficient performance. When integrated with machinery enclosures, ventilation channels, and mechanical rooms, they provide dual-action thermal insulation and noise attenuation.

Localized Project Adaptability & Environmental Resilience

Environmental conditions vary widely across global markets. Kingflex designs customized solutions to meet these distinct regional needs:

Middle East & Tropical Latitudes

Designed for high temperature and high humidity conditions, these solutions feature high surface emissivity and an elevated water vapor resistance factor (μ ≥ 10,000). They prevent surface condensation and mold growth without requiring external vapor wraps.

Nordic & Sub-Zero Conditions

Formulated to retain flexibility at temperatures down to -40°C, preventing structural cracking, mechanical breakdown, and material degradation.

Industrial Cleanrooms & Laboratories

Our fiber-free, dust-free formulation maintains high Indoor Air Quality (IAQ). It prevents microbial contamination, making it ideal for pharmaceutical facilities and microelectronics cleanrooms.

International Certifications & Quality Endorsements

Kingflex maintains compliance with global standards, ensuring safety, reliability, and traceibility in major construction and industrial projects.

Kingflex Quality Certificate 1 Kingflex Quality Certificate 2 Kingflex Quality Certificate 3 Kingflex Quality Certificate 4

Engineering Projects & Jobsite Installations

Our insulation materials are installed in major projects worldwide, from high-rise commercial centers to complex petrochemical processing facilities.

Global Client Cooperation & Communications

Our focus on product quality and client support has established Kingflex as a trusted partner for international engineering firms and procurement teams.

Client Communication Screenshot 1 Client Communication Screenshot 2 Client Communication Screenshot 3 Client Communication Screenshot 4 Client Communication Screenshot 5

Frequently Asked Questions (FAQ)

Q1: What is elastomeric rubber foam insulation used for?
A1: It is primarily used for insulating HVAC ducts, air conditioning pipes, building envelopes, industrial process lines, and cold chain systems. Its high vapor resistance prevents surface condensation on chilled water pipes and mechanical equipment.
Q2: Is Kingflex rubber foam insulation fire resistant?
A2: Yes, our elastomeric rubber foam formulations include halogen-safe flame retardants. Our products meet BS 476 Part 6 & Part 7 Class 0/Class 1 standards, and carry a UL94 V-0 flame rating. This ensures they are self-extinguishing and generate low smoke density during fire exposure.
Q3: What is the difference between rubber foam and rock wool insulation?
A3: Rubber foam features a flexible, closed-cell structure with high water vapor transmission resistance (μ ≥ 10,000), making it ideal for cold lines, condensation control, and HVAC applications. Rock wool is a fibrous material that handles temperatures over 1000°C, making it suitable for high-temperature steam lines and industrial fire walls, though it requires an external vapor barrier to prevent moisture ingress.
Q4: Do you provide customized insulation products?
A4: Yes, we provide full OEM and ODM services. This includes custom densities (40-55 kg/m³), varying thicknesses (6mm to 50mm), self-adhesive backings, external protective layers (like aluminum foil or fiberglass glass-cloth), and custom color formulations.
Q5: What certifications do your products have?
A5: Kingflex products are certified to global standards including BS 476, CE, REACH, ROHS, UL94, and ASTM. This ensures compliance with structural safety, chemical safety, and fire protection requirements across major global markets.
Q6: Does Kingflex products have traceability?
A6: Yes, we maintain batch traceability throughout our production process. From raw chemical loading to curing, extrusion, and final cutting, each batch is logged in our ERP system to support quality assurance and simplify site audits.
Q7: What thickness of Rubber foam insulation sheet roll can you produce?
A7: We produce rubber foam insulation sheet rolls in thicknesses ranging from 6mm to 50mm, allowing engineering teams to specify the ideal thickness for their system calculations.
Q8: What is the service life of rubber plastic pipe and board?
A8: When installed according to manufacturer specifications in recommended indoor or protected outdoor environments, Kingflex rubber foam insulation systems maintain their thermal properties for 10 to 15 years.