China Rubber Foam Insulation Sheet Roll With Black Color Suppliers & Pricelist

Premium NBR/PVC Closed-Cell Insulation Systems for Industrial Heating, Ventilation & Cryogenic Engineering

The Science of Elastomeric Nitrile Foam in Thermal Insulation Engineering

Modern building construction and industrial process designs require advanced thermal management solutions that reduce carbon outputs, control environmental hazards, and stabilize structural systems. As a leading manufacturer in China, Kingflex Insulation produces black closed-cell rubber foam insulation rolls and pipes that meet these demands. Utilizing an engineered compound of NBR (Nitrile-Butadiene Rubber) and PVC (Polyvinyl Chloride), our products are designed to deliver permanent thermal performance in challenging commercial environments.

By blending rubber polymers with fire-retardant elements, our technical department creates a matrix characterized by a high closed-cell concentration (>98%). This cell density acts as a dual-barrier against thermal transmission and water vapor absorption. In heavy industry applications, preventing moisture ingress is essential to avoiding Corrosion Under Insulation (CUI), a major cause of piping failure in commercial mechanical systems.

Kingflex Manufacturing Facility and Research Lab

Global Infrastructure & Commercial Scale Solutions

From central HVAC systems in commercial developments to specialized containment pipelines in heavy chemical plants.

HVAC Ducting & Condensation Mitigation

Prevents surface condensation on commercial air ducts and chilled water piping. Keeps heat transfer low, protecting building envelopes from structural water damage and mold.

Petrochemical & Process Piping Isolation

Designed for industrial process lines operating from -40°C to 105°C. Features chemical resistance to ozone, acids, oils, and environmental elements.

Cryogenic & Low Temperature Preservation

Engineered for high thermal resistance, maintaining thermal efficiency in extreme low-temperature pipelines and cold chain systems.

600k+ m³

Annual Production Output

66+ Countries

Global Export Footprint

40+ Years

Group Industrial Heritage

98%+

Closed-Cell Foaming Rate

Kingflex Standard Engineering Dimensions & Parameters

Verified physical properties of NBR/PVC closed-cell elastomeric insulation materials.

Property Parameter Rubber Foam Insulation Sheet Roll Rubber Foam Insulation Pipe/Tube Testing & Compliance Standards
Base Compounds NBR/PVC Elastomeric Polymer blend NBR/PVC Elastomeric Polymer blend ISO 9001, RoHS, REACH compliant
Nominal Density 40 - 55 kg/m³ 40 - 55 kg/m³ ASTM D1622 / ISO 845
Available Thickness 6mm - 50mm 9mm - 40mm (Inner Diameter: 6-114mm) Customized OEM limits supported
Thermal Conductivity ≤ 0.034 W/(m·k) at 0°C ≤ 0.034 W/(m·k) at 0°C ASTM C518 / EN 12667
Operating Temperature -40°C to 105°C (-40°F to 221°F) -40°C to 105°C (-40°F to 221°F) ASTM C411 Limits
Fire Safety Rating Class 0 / Class 1 flame retardant Flame retardant, self-extinguishing BS 476 Part 6 & 7, UL94, ASTM E84
Moisture Permeability Resistance factor μ ≥ 10,000 Resistance factor μ ≥ 10,000 EN 12086 / ASTM E96
Jinwei Group Historic Production Facility

Forty Years of Industrial Manufacturing Leadership

Kingflex Insulation Co., Ltd. belongs to the Jinwei Group, which holds a 40-year history in the thermal insulation industry. Established in 1979, Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River. Kingflex has developed from this group into an energy-saving enterprise focused on research, production, and global logistics.

Our production facilities are situated in Dacheng, China, a major region for green building materials. Operating with 5 large automatic assembly lines and producing over 600,000 cubic meters annually, we are a designated supplier for the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.

Advanced R&D and Professional Engineering Team

Our workforce features specialized engineering talent. The Kingflex team includes 8 professional engineers in our R&D Department, 6 international sales agents, and 230 technicians in the production department. Our facility operates dynamic testing stations to inspect raw material quality, thermal values, and cell integrity prior to packaging.

This strict oversight ensures that every production run of black rubber foam insulation sheet rolls matches high quality standards. From raw NBR rubber compounding to final continuous vulcanization and foaming, each step is logged to ensure batch traceability.

Certified Quality for International Projects

Our products have passed BS 476, CE, REACH, RoHS, UL94, ASTM, and other international certifications, ensuring compliance with global standards.

Quality Standard Certificate 1
Safety Standard Certificate 2
Fire Safety Certificate 3
Global Green Building Certificate 4

Global Partnerships & Verification

Over the past 16 years, Kingflex thermal insulation products have been exported to more than 66 countries. We maintain collaborative relationships with project managers, procurement directors, and mechanical engineers worldwide. Our customer communication logs indicate high satisfaction ratings regarding product consistency, packaging, and on-time shipments.

Verified Global Trade Data

Engineering Projects Reference Portfolio

Our products are used in commercial HVAC installations, municipal water grids, and petrochemical pipe insulation projects.

Commercial Pricelist & Procurement Analysis

Understanding cost structures when ordering wholesale NBR/PVC rubber foam rolls from China.

For international buyers, the FOB China pricelist for rubber foam sheet rolls depends on several key variables:

  • Raw Material Cost (NBR & PVC Index): Fluctuations in global synthetic rubber and polymer oil feeds directly impact baseline manufacturing costs.
  • Density Customization: Standard densities run from 40kg/m³ to 55kg/m³. Higher densities offer better structural durability and sound reduction index, but require more raw material.
  • Functional Self-Adhesive Backing: Adding reinforced adhesive backing simplifies installation, reducing field labor costs, though it increases the initial material cost.
  • Alu-Cladding & Outer Protective Layers: Outer skins (foil or fiberglass scrims) improve puncture resistance and weatherproofing, adapting the product for outdoor piping systems.

Kingflex offers direct factory volume pricing for container loads, along with OEM sizing and protective packaging options designed for long-distance transport.

Specialized Product Solutions Portfolio

A closer look at the unique attributes of our primary NBR, PVC, and mineral wool product lines.

Rubber elastomeric foam insulation tube

Rubber elastomeric foam insulation tube

Flexible elastomeric tube with high resistance to water vapor diffusion, designed for copper pipe insulation.

View Dimensions
Corrosion Resistant Rubber Foam Insulation Tube

Corrosion Resistant Rubber Foam Insulation Tube

Specially formulated outer skin that protects underlying metal pipes against corrosion, moisture, and chemical exposure.

Technical Specs
Elastic Rubber Foam Insulation Pipe

Elastic Rubber Foam Insulation Pipe

Flexible construction that curves around pipe bends, reducing the need for cutting and gluing.

View Installation Guide
Black Rubber Foam Insulation Pipe

Black Rubber Foam Insulation Pipe

Industry-standard black elastomeric pipe insulation for commercial water heating and chilling systems.

Request Quote
Foam Rubber Foam Insulation Tube

Foam Rubber Foam Insulation Tube

Balanced NBR composition designed for soundproofing and vibration damping in HVAC equipment rooms.

Sound Data
HVAC Rubber Foam Insulation Tube

HVAC Rubber Foam Insulation Tube

Designed for high-capacity air conditioning system lines, preventing temperature loss and condensation.

HVAC Application Guide
Elastomeric rubber foam insulation system for cryogenic

Elastomeric rubber foam insulation system for cryogenic applications

Low-temperature insulation designed to handle thermal contraction in extreme cryogenic processes.

View Cryo Catalog
Kingflex flexible insulation material for cryogenic

Kingflex flexible insulation material for cryogenic systems

Engineered multi-layered systems designed for industrial LNG and gas processing facilities.

Request Engineering Drawing
Cryogenic rubber foam for low temperature and heat insulation

Cryogenic rubber foam for low temperature and heat insulation

Dual-purpose thermal control lining designed for pipelines cycling between hot and sub-zero processes.

Thermal Integrity Data
Elastomeric cryogenic insulation for low temperature

Elastomeric cryogenic insulation for low temperature pipeline systems

Maintains material flexibility at low temperatures to prevent stress cracking in industrial pipes.

View Test Reports
Rock Wool Insulation Boad

Rock Wool Insulation Board

High-density structural board designed for high-temperature fire stops and partition walls.

Structural Details
rock wool thermal insulation blanket

rock wool thermal insulation blanket

Flexible mineral fiber blanket for boiler insulation, industrial ovens, and high-temp flues.

View Fire Ratings

Production Capability & Social Responsibility

Kingflex focuses on industrial energy conservation. We design and deliver integrated insulation systems that limit thermal losses in building systems, industrial piping, and cooling networks.

Equipped with 5 continuous extrusion and foaming lines, we handle large volume demands for infrastructure projects, maintaining product consistency across shipments. We work with engineering, procurement, and construction (EPC) companies to supply custom-slitted rolls, self-adhesive panels, and pre-formed pipe sections that align with project specifications.

Need a Customized Commercial Quote?

Get in touch with our R&D and international sales teams to discuss custom thickness dimensions, technical parameter testing, and wholesale container pricing.

Contact Engineering & Sales

Technical & Commercial FAQ

Expert answers regarding elastomer performance, fire ratings, system specifications, and commercial purchasing.

Q1: What is elastomeric rubber foam insulation used for?
It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation. Its closed-cell structure prevents moisture ingress and condensation, which helps avoid corrosion under insulation (CUI) on steel or copper pipelines.
Q2: Is Kingflex rubber foam insulation fire resistant?
Yes, our rubber foam insulation is fire retardant, meeting standard building and industrial safety regulations. It complies with certifications such as BS 476 Part 6 & 7 (Class 0/Class 1) and UL94, meaning it is self-extinguishing and does not propagate flame.
Q3: What is the difference between rubber foam and rock wool insulation?
Rubber foam is a flexible, closed-cell, moisture-proof material suitable for refrigeration, chilled water systems, and HVAC installations. Rock wool is a high-density mineral fiber that offers high-temperature resistance and fire protection, making it suited for industrial high-temperature pipelines, ovens, and partition fire walls.
Q4: Do you provide customized insulation products?
Yes, we provide OEM and custom services. We can adjust dimensions (thickness from 6mm to 50mm, custom inner diameters), density ranges, backing adhesives, and outer protective claddings to match project requirements.
Q5: What certifications do your products have?
Our products have passed BS 476, CE, REACH, RoHS, UL94, ASTM, and other international certifications, verifying compliance with international quality, safety, and environmental standards.
Q6: Do Kingflex products have traceability?
Yes. Every production run has a distinct batch code printed on the box labels, which traces the raw materials, production line conditions, and test results back to our QA records.
Q7: What thickness of Rubber foam insulation sheet roll can you produce?
We produce sheet rolls in thicknesses ranging from 6mm up to 50mm. Standard thicknesses include 6mm, 9mm, 13mm, 15mm, 19mm, 25mm, 32mm, 40mm, and 50mm.
Q8: What is the service life of rubber plastic pipe and board?
Under typical indoor working conditions and when installed according to manufacturer guidelines, Kingflex rubber foam insulation systems have an expected service life of 10 to 15 years.
Q9: Why is carbon black added to the NBR/PVC matrix?
Carbon black is added during compound formulation to improve UV radiation resistance, increase mechanical strength, and provide uniform thermal emissivity. This addition helps prevent the polymer chain from degrading when exposed to sunlight and environmental factors.
Q10: Can rubber foam insulation sheets be used in outdoor piping runs?
Yes, but they require proper protection. Outdoor installations should use an ultraviolet-resistant coating, aluminum cladding, or a multi-ply laminate wrap to shield the elastomeric material from UV degradation and weather wear.