E-E-A-T Certified Supplier

Wholesale Rubber Insulation Sheet Factory & Pricelist

Premium Closed-Cell NBR/PVC Elastomeric Foam Sheet & Tube. Directly from Kingflex Industry. Certified Performance for HVAC, Solar Heat, Cryogenic Engineering, and Acoustic Mitigation.

GLOBAL INDUSTRY INSIGHTS

Macro Industry Solutions & Global Sourcing Demand

Modern building construction and heavy industrial operations are subject to increasingly stringent global carbon neutrality targets, prompting high demands on thermodynamic optimization. Elastomeric Rubber Insulation Sheets (chiefly NBR/PVC based closed-cell material) have evolved into a structural prerequisite. In commercial HVAC projects, chemical refineries, solar thermal units, and LNG cryogenic shipping vessels, preventing condensation and energy loss is critical.

Thermal Efficiency Optimization: Maintains consistent conductivity ($\lambda \le 0.034$ W/m·K) to prevent thermal bridging.

Water Vapor Resistance Factor ($\mu$): Exceeds 10,000, creating an impermeable barrier that mitigates under-insulation corrosion (CUI).

Universal Compliance: Meets BS 476, CE, REACH, RoHS, UL94, and ASTM requirements for commercial and public infrastructure.

Kingflex Factory Production Floor
Established Expertise

About Kingflex Insulation Co., Ltd.

Decades of manufacturing precision and technological advancement in green building materials.

1979
Group Established
600K m³
Annual Production Capacity
66+
Exporting Countries
8
Professional R&D Engineers
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Our Company

Located in Dacheng, China—the capital of green-building materials—Kingflex is a professional manufacturing and trading combo. We concentrate on the research, production, and sale of energy-saving, environmentally friendly insulation systems, providing comprehensive post-sale service and installation guidance.

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Our History

Established by the Jinwei Group (now Kingway Group), which has a legacy dating back to 1979. We were the first thermal insulation manufacturer north of the Yangtze River, paving the way for China's modern energy insulation industry.

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Our Team

A tight-knit organization with 8 professional R&D engineers, 6 international sales consultants, and 230 production workers. Our shared vision guarantees first-class structural consultation and supply chain efficiency for global buyers.

Kingflex Historical Development & Factory Kingflex Team & Production Crew
TECHNICAL DATASHEET

Black Rubber Foam Insulation Specifications

Compare standard dimensional limits, thermal metrics, and application scopes for sheet rolls and pipes.

📄 Black Rubber Foam Insulation Sheet Roll

Material: Premium Nitrile Rubber / Polyvinyl Chloride (NBR/PVC)

Thickness Options: 6mm - 50mm

Density Spectrum: 40 - 55 kg/m³

Service Temperature Limits: -40℃ to 105℃

Physical 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.

Core Applications

Central Air Conditioning Ducts Wall & Roof Insulation Storage Tanks Acoustic Machine Rooms Rail Transit

📣 Black Rubber Foam Insulation Pipe

Material: Premium Nitrile Rubber / Polyvinyl Chloride (NBR/PVC)

Thickness Options: 9mm - 40mm (ID: 6mm - 114mm)

Density Spectrum: 40 - 55 kg/m³

Service Temperature Limits: -40℃ to 105℃

Physical Advantages

  • Professional pipe spraying equipment ensures even coating.
  • Foams evenly and fully, closed cell rate over 98%, excellent thermal insulation.
  • Compression resilience over 80%.
  • Flame retardant, self-extinguishing off fire.
  • Low thermal conductivity, high moisture resistance factor.
  • Greatly reduce pipe freezing and cracking risks.

Core Applications

Chilled Water Pipes HVAC Condensate Piping Solar Hot Water Systems Chemical Process Lines Cold Chain Logistics
Insulation Material Cellular Configuration Thermal Conductivity (W/m·K at 0°C) Vapor Resistance ($\mu$ Factor) Fire Classification Corrosion Under Insulation (CUI) risk
Kingflex NBR/PVC Rubber Closed-Cell (>98%) $\le$ 0.034 $\ge$ 10,000 Class 0 / Class 1 / B-s3, d0 Extremely Low
Rock Wool Board Open Fibrous $\approx$ 0.038 - 0.045 $\approx$ 1 Class A1 Non-combustible High if wet
Glass Wool Blanket Open Fibrous $\approx$ 0.036 - 0.042 $\approx$ 1 Class A1 Non-combustible Medium to High
Future Roadmap

Material Innovation & Microscopic Technology

The core efficiency of elastomeric insulation depends on cellular structural integrity. Traditional NBR/PVC manufacturing often leads to uneven foaming, reducing thermal retention. Our R&D team targets microscopic structural alignment.

By controlling the curing kinetics, Kingflex ensures that the cell sizes are evenly distributed at the micron scale. The integration of high-grade flame retardants directly into the polymer chain ensures that fire resistance does not decline over time, resolving the chemical degradation typical of cheap insulation sheets.

For ultra-low cryogenic systems (down to -200°C), standard NBR becomes brittle. We have designed a multi-layer elastomeric system using high-density synthetic EPDM/NBR alloys to maintain elasticity at extreme temperatures, preventing stress fractures from thermal contraction.

Kingflex R&D Laboratory Testing Microscopic Chemical Analysis Advanced Extrusion R&D
GLOBAL CERTIFICATIONS

Standardized Compliance & Traceability

Kingflex products are manufactured under rigorous QA/QC protocols to meet strict building safety regulations worldwide.

CE Compliance Document

CE Certificate

European Union safety and performance certification for building components.

ISO Quality Management System

ISO 9001:2015

Strict tracking from raw materials to final cargo testing.

Fire Test Report BS 476

BS 476 Part 6 & 7

British Standard testing for flame spread and heat release.

RoHS and REACH environmental safety document

RoHS / REACH

Verified free of hazardous chemical additives and low VOC emission.

Transparency & Customer Trust

Direct Collaboration with Global Procurement Managers

We work closely with structural engineering procurement divisions across North America, Europe, Australia, and the APAC region. From raw material configuration requests to customized sizes, our team coordinates directly with yours.

These real transaction screenshots highlight our quick responsiveness, engineering support, and shipment tracking, demonstrating our commitment to reliable industrial service.

Customer Communication Chat Log 1 Customer Communication Chat Log 2 Customer Communication Chat Log 3 Customer Communication Chat Log 4 Customer Communication Chat Log 5
Real-World Footprint

Global Project Deployments & Plant Operations

A showcase of our materials installed in commercial buildings, municipal pipelines, and heavy industrial facilities.

Insulated Air Ducts Showcase Chilled Water Pipes System Industrial Steam Pipelines Warehouse Storage Infrastructure
Commercial HVAC Installation 1 Commercial HVAC Installation 2 Commercial HVAC Installation 3 Commercial HVAC Installation 4
Factory Extrusion Machinery 1 Factory Extrusion Machinery 2 Factory Extrusion Machinery 3 Factory Extrusion Machinery 4
Large Scale Pipe Extrusion Line Quality Inspection Stations Shipping Container Logistics Yard Finished Product Storage Hall
TECHNICAL SUPPORT

Frequently Asked Questions

Find technical clarifications regarding thermal physical properties, customization, safety standards, and pricing systems.

❓ Q1: What is elastomeric rubber foam insulation used for?
A1: It is primarily designed for HVAC duct wrap, domestic and industrial chilled/hot piping systems, solar energy system insulation, cryogenic project pipeline protection, acoustic enclosures, and machine room vibration dampening.
❓ Q2: Is Kingflex rubber foam insulation fire resistant?
A2: Yes, our formulation contains integrated halogenated compounds and mineral flame retardants that meet international standards (BS 476 Class 0, CE, DIN 4102 B1, UL94 V-0, ASTM E84). It is self-extinguishing and will not drop burning droplets.
❓ Q3: What is the difference between rubber foam and rock wool insulation?
A3: Rubber foam is a closed-cell elastomeric material with an integrated vapor barrier, making it ideal for moisture prevention in cooling/chilled water systems. Rock wool is a fibrous open-cell material best suited for high-temperature applications (above 150°C) and structural firewalls.
❓ Q4: Do you provide customized insulation products?
A4: Yes, we provide full OEM support, including custom thickness (6mm to 50mm), customized interior tube diameters (ID 6mm to 114mm), factory pre-applied self-adhesive backings, and aluminum foil vapor barrier laminations.
❓ Q5: What certifications do your products have?
A5: Kingflex materials are certified under BS 476, CE, REACH, RoHS, UL94, and ASTM. This ensures compliance with European, American, and APAC regional building and safety regulations.
❓ Q6: Does Kingflex products have traceability?
A6: Yes. Every production run has an associated batch number stamped on the protective film packaging and outer carton, corresponding directly to our raw material sourcing records and lab QC reports.
❓ Q7: What thickness of Rubber foam insulation sheet roll can you produce?
A7: Our standard extrusion lines produce continuous sheet rolls in thicknesses ranging from 6mm to 50mm, allowing for custom layering in heavy industrial configurations.
❓ Q8: What is the service life of rubber plastic pipe and board?
A8: When properly installed with matching adhesive sealants, the functional service life is estimated between 10 to 15 years, depending on exposure to environmental UV, relative humidity levels, and thermal cycles.