Kingflex thermal insulation manufacturing facility production line
Kingflex rubber foam insulation products for HVAC and industrial applications
Kingflex elastomeric insulation solutions for construction and energy saving
✦ Digital Twin Monitoring · Real-Time Quality Control

Global Leader in
Thermal Insulation
Solutions

Kingflex Insulation Co., Ltd. — Professional manufacturer of elastomeric rubber foam, rock wool, and advanced insulation systems. Serving 66+ countries with 40+ years of engineering excellence.

0+ Years History
0+ Countries Served
0K+ m³ Annual Capacity
0 Auto Assembly Lines
Kingflex Insulation Co. Ltd factory overview and production facility in Dacheng China
40+ Years of Excellence
✦ Our Company

Kingflex Insulation —
Energy-Saving Innovation
Since 1979

Kingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Our research, development and production department is located in the well-known capital of green building materials in Dacheng, China. We are an energy-saving, environmentally friendly enterprise that concentrates on research and development, production and sales.

In operation, Kingflex takes energy saving and consumption reduction as the core concept. We provide complete insulation solutions through consultation, R&D, production, installation guidance and post-sale service — leading the development of the global building materials industry.

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State-of-the-art manufacturing in Dacheng, China
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Exported to 66+ countries worldwide
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8 professional R&D engineers on staff
BS 476, CE, REACH, ROHS, UL94, ASTM certified
Request a Quote
🏭 0 Automatic Assembly Lines
📦 0K+ m³ Annual Production
👷 0+ Production Workers
🌐 0+ Countries Served
✦ Our History

40+ Years of
Insulation Mastery

Kingflex is established by Jinwei Group which has more than 40 years of history. Kingway Group was established in 1979 and was the first manufacturer of thermal insulation materials north of the Yangtze River — a pioneer that set the standard for China's insulation industry.

1979
Kingway Group established — first thermal insulation manufacturer north of the Yangtze River in China.
Early 2000s
Kingflex Insulation Co., Ltd. founded under Jinwei Group, specializing in elastomeric rubber foam insulation.
Global Expansion
Products exported to 66+ countries over 16+ years of international trade, earning global certifications.
Today
5 large automatic assembly lines, 600,000+ m³ annual capacity, designated by Ministry of Energy and Chemical Industry.
Kingflex insulation factory history and production development in Dacheng China
✦ Our Team

A Talented Team
Dedicated to Excellence

Our employees are amazing in their own right, but together they are what makes Kingflex such a rewarding place to work. Kingflex team is a tight-knit, talented group with a shared vision of giving consistently first-class service for our clients.

Kingflex has eight professional engineers in the R&D Department, 6 professional international sales specialists, and 230 skilled workers in the production department — all committed to delivering world-class insulation solutions.

8
Professional R&D Engineers
6
International Sales Experts
230+
Production Workers
40+
Years Combined Experience
Kingflex professional team of engineers and production workers
✦ Production Capacity

World-Class
Manufacturing Power

At present, Kingflex has 5 large automatic assembly lines, with an annual production capacity of more than 600,000 cubic meters, and has become a designated production enterprise designated by the Ministry of Energy, the Ministry of Electric Power and the Ministry of Chemical Industry.

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5 Automatic Assembly Lines

State-of-the-art fully automated production lines ensuring consistent product quality, high efficiency, and large-volume output to meet global demand.

📊

600,000+ m³ Annual Output

Our massive annual production capacity ensures timely delivery for projects of any scale — from small HVAC installations to large industrial complexes.

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Government Designated Supplier

Officially designated production enterprise by China's Ministry of Energy, Ministry of Electric Power and Ministry of Chemical Industry — a testament to our quality and reliability.

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Our Products

Kingflex thermal insulation products are widely used in construction, petroleum, chemical, national defense, aerospace and other industries, exported to 66+ countries over 16 years.

♻️

Our Responsibility

Supply customers worldwide with a full set of energy-saving insulation system solutions — integrated provider of thermal insulation, cold insulation and noise reduction for buildings and industries.

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Closed-Cell Technology

Our proprietary closed-cell foam technology achieves a cell rate over 98%, delivering superior thermal performance, moisture resistance, and long-term durability.

✦ Why Choose Kingflex

The Kingflex
Competitive Advantage

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Advanced R&D Capability

8 professional engineers drive continuous innovation in insulation materials, formulations and production processes to stay ahead of global market demands.

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International Certifications

Products certified to BS 476, CE, REACH, ROHS, UL94, ASTM and other global standards — ensuring compliance for projects in any country.

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OEM & Custom Solutions

Full OEM service capability to customize thickness, density, dimensions and specifications to meet unique project requirements and branding needs.

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Massive Production Scale

5 automatic assembly lines and 600,000+ m³ annual capacity guarantee on-time delivery for large-scale international projects without compromise.

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Product Traceability

Every Kingflex product features full traceability from raw material sourcing to finished goods, ensuring complete quality accountability and documentation.

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16+ Years Export Experience

Proven track record of serving clients in 66+ countries with consistent quality, reliable logistics and professional after-sales technical support.

✦ R&D Innovation

Research & Development
Driving the Future

Our dedicated R&D department continuously develops next-generation insulation materials and systems. With 8 professional engineers and state-of-the-art testing facilities, Kingflex stays at the forefront of thermal insulation technology.

Kingflex R&D laboratory testing thermal insulation materials
Material Testing Lab
Kingflex advanced insulation product development and quality control
Product Development
Kingflex innovation in rubber foam insulation technology
Innovation Center
✦ Certifications

Globally Recognized
Quality Certifications

Kingflex products have passed rigorous international certifications, ensuring compliance with global safety and quality standards across all major markets.

Kingflex BS 476 fire retardant certification for rubber foam insulation
Kingflex CE certification for thermal insulation products
Kingflex REACH ROHS compliance certification
Kingflex UL94 ASTM international quality certification
🏅 BS 476 🏅 CE Certified 🏅 REACH 🏅 ROHS 🏅 UL94 🏅 ASTM
✦ Our Products

Complete Range of
Insulation Solutions

From elastomeric rubber foam to rock wool, Kingflex offers a comprehensive portfolio of thermal insulation products for every application — HVAC, industrial, construction, and beyond.

Rubber elastomeric foam insulation tube for HVAC pipe insulation
Pipe Insulation

Rubber Elastomeric Foam Insulation Tube

Corrosion resistant rubber foam insulation tube for chemical industry
Corrosion Resistant

Corrosion Resistant Rubber Foam Insulation Tube

Elastic rubber foam insulation pipe for flexible installation
Flexible

Elastic Rubber Foam Insulation Pipe

Black rubber foam insulation pipe NBR PVC material
Standard

Black Rubber Foam Insulation Pipe

Foam rubber insulation tube for air conditioning systems
Foam

Foam Rubber Foam Insulation Tube

HVAC rubber foam insulation tube for air duct and pipe insulation
HVAC

HVAC Rubber Foam Insulation Tube

Elastomeric rubber foam insulation system for underground applications
System

Elastomeric Rubber Foam Insulation System

Kingflex flexible insulation material for cryogenic applications
Cryogenic

Kingflex Flexible Insulation for Cryogenic

Cryogenic rubber foam for low temperature and high humidity environments
Low Temp

Cryogenic Rubber Foam for Low Temperature

Elastomeric cryogenic insulation for low temperature pipelines
Elastomeric

Elastomeric Cryogenic Insulation

Rock wool insulation board for high temperature industrial applications
Rock Wool

Rock Wool Insulation Board

Rock wool thermal insulation blanket for industrial pipe insulation
Rock Wool

Rock Wool Thermal Insulation Blanket

✦ Featured Products

Product
Technical Specifications

Black rubber foam insulation sheet roll NBR PVC material specifications Rubber foam insulation sheet roll closed cell structure detail Kingflex insulation sheet roll thickness range 6mm to 50mm Rubber foam insulation roll for building and HVAC applications

Black Rubber Foam Insulation Sheet Roll

Kingflex Standard Dimension

Material: NBR/PVC
Thickness: 6mm–50mm
Density: 40–55 kg/m³
Service Temperature Range: -40℃ to 105℃

Key Advantages

1. Foams evenly and fully, closed cell rate over 98%, excellent thermal insulation.
2. Full closed-cell structure, low moisture absorption, stable long-term thermal conductivity.
3. Compression resilience over 80%.
4. Flame retardant, self-extinguishing off fire.
5. Low thermal conductivity, high moisture resistance factor.

Application Scenarios

Central air conditioning ducts & pipes · Building wall, roof & basement · HVAC & water supply anti-condensation · Industrial equipment & steam pipes · Hotels, malls & hospitals · Rail transit & cold storage · Chemical industry process pipes
View Related Products

Black Rubber Foam Insulation Pipe

Kingflex Standard Dimension

Material: NBR/PVC
Thickness: 9mm–40mm
ID: 6mm–114mm
Density: 40–55 kg/m³
Service Temperature Range: -40℃ to 105℃

Key Advantages

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

Application Scenarios

Central AC chilled/hot water pipes · Building HVAC antifreeze · Hotel, mall & hospital ventilation · Industrial steam & process pipes · Cold storage & cold chain · Chemical & petrochemical pipes · Solar & hot water system pipelines
View Related Products
Black rubber foam insulation pipe for central air conditioning systems Rubber foam pipe insulation installation on HVAC chilled water pipes Kingflex rubber foam pipe insulation thickness options 9mm to 40mm NBR PVC rubber foam insulation pipe for industrial cold insulation
✦ Industry Applications

Serving Every
Major Industry

Kingflex thermal insulation products are trusted across a diverse range of industries worldwide, delivering reliable energy savings and protection in the most demanding environments.

❄️

HVAC & Air Conditioning

Heat insulation for air ducts, pipes, and central AC systems to prevent condensation and energy loss.

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Construction & Buildings

Wall, roof and basement thermal and sound insulation for residential and commercial buildings.

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Industrial Plants

Insulation for equipment, steam pipes and storage tanks in manufacturing and processing facilities.

⚗️

Chemical & Petrochemical

Heat insulation, sound insulation and corrosion protection for process pipes in chemical plants.

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Petroleum & Energy

Designated supplier for China's Ministry of Energy — proven performance in oil and gas applications.

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Rail Transit & Cold Storage

Thermal insulation for railway carriages, cold rooms and cold chain logistics infrastructure.

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Hotels, Malls & Hospitals

Insulation and noise reduction for ventilation ducts and machine rooms in commercial buildings.

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Aerospace & Defense

High-performance insulation solutions for national defense and aerospace industry applications.

✦ Project Cases

Real-World
Project Showcase

Kingflex insulation solutions have been successfully deployed in major projects across construction, industrial, HVAC and specialized sectors worldwide.

Kingflex thermal insulation project in chemical plant pipeline
Kingflex insulation installation project in industrial facility
Kingflex rubber foam pipe insulation project for HVAC system
Kingflex thermal insulation applied in building construction project
Kingflex cold insulation project for refrigeration pipeline system
Kingflex insulation project in petrochemical plant
Kingflex thermal insulation for air conditioning duct system project
Kingflex insulation installed in commercial building mechanical room
Kingflex rubber foam insulation project for cold storage facility
Kingflex thermal insulation project in energy plant pipeline
Kingflex insulation solution for industrial process pipe system
Kingflex rubber foam insulation for building mechanical system
✦ Our Service Commitment

Full-Spectrum Insulation
System Solutions

Supply customers all over the world with a full set of energy saving insulation system solutions. Kingflex is your integrated solution provider of thermal insulation, cold insulation and noise reduction for buildings and industries.

Get Free Consultation Download Product Catalog
✦ Our Customers

Trusted by Clients
Around the World

Real conversations with real customers — see what our global clients say about Kingflex insulation products and services.

Customer chat screenshot showing positive feedback on Kingflex insulation products
✅ Verified Customer Inquiry — HVAC Contractor
International customer chat screenshot confirming Kingflex product quality
✅ Verified Customer Inquiry — Building Contractor
Customer review screenshot of Kingflex rubber foam insulation order
✅ Verified Customer Inquiry — Industrial Buyer
Customer satisfaction screenshot for Kingflex thermal insulation export
✅ Verified Customer Inquiry — Export Project
Overseas client positive feedback on Kingflex insulation delivery and quality
✅ Verified Customer Inquiry — Overseas Distributor
✦ FAQ

Frequently Asked
Questions

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.
Q2
Is Kingflex rubber foam insulation fire resistant?
Yes, our rubber foam insulation is fire retardant, which meets the safety standards of building and industrial projects.
Q3
What is the difference between rubber foam and rock wool insulation?
Rubber foam is flexible, closed-cell and moisture-proof, suitable for HVAC and building insulation. Rock wool is high-temperature resistant and fireproof, suitable for industrial high-temperature pipeline insulation.
Q4
Do you provide customized insulation products?
Yes, we support OEM service to meet different project needs — including custom thickness, density, dimensions and branding requirements.
Q5
What certifications do your products have?
Our products have passed BS 476, CE, REACH, ROHS, UL94, ASTM and other international certifications, ensuring product quality and compliance with global standards.
Q6
Does Kingflex products have traceability?
Yes, Kingflex products have full traceability from raw material sourcing through production to the finished product, ensuring complete quality documentation.
Q7
What thickness of rubber foam insulation sheet roll can you produce?
We can produce from 6mm to 50mm thickness, covering a wide range of thermal insulation requirements for various applications.
Q8
What is the service life of rubber plastic pipe and board?
The service life will be approximately 10 to 15 years under normal installation and usage conditions, providing long-term energy-saving performance.
✦ Get Started Today

Ready to Optimize Your
Insulation System?

Partner with Kingflex — 40+ years of expertise, global certifications, and a dedicated team ready to deliver the perfect insulation solution for your project.

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