Global B2B Wholesale & Custom Sourcing

Wholesale Best Insulation Blanket Suppliers & Quotes

High-Performance Closed-Cell Elastomeric & NBR/PVC Thermal Insulation Systems for Advanced HVAC, Cryogenic, Industrial Piping, and Structural Energy-Saving Audits.

Request Engineering Quotes Now
40+
Years of Industry History
600K+
Annual Capacity (m³)
66+
Global Export Markets
98%+
Closed-Cell Gas Structure
ESTABLISHED IN 1979

A Legacy of Manufacturing Excellence in Thermal Insulation

Kingflex Insulation Co., Ltd. is a globally recognized manufacturing and trading powerhouse, specializing in high-performance thermal insulation solutions. Operating under the umbrella of the prestigious Jinwei Group, which boasts a heritage spanning more than 40 years, Kingflex was built upon the historical foundation of the first-ever thermal insulation manufacturer north of the Yangtze River.

Nestled in Dacheng, China—widely regarded as the capital of green building materials—our production and research department operates with a fundamental concept: energy saving and carbon footprint reduction. From comprehensive technical consultations and advanced molecular R&D, to custom-engineered production, direct installation guidance, and dedicated post-sale support, we pave the way for sustainable global construction and heavy industry.

Kingflex Head Office and Manufacturing Center
UNPARALLELED TALENT

Our Powerhouse Team: R&D-Driven Innovation

Our team is built on unified collaboration and specialized expertise, working with a shared vision to provide first-class service and rigorous quality guarantees for our global clients. Kingflex boasts a highly integrated human resource network, including:

  • 8 Professional Senior R&D Engineers continuously optimizing closed-cell polymeric formulations.
  • 6 Dedicated International Trade Consultants offering seamless import/export logistics and compliance management.
  • 230 Skilled Production Specialists managing our state-of-the-art automated production lines.
Kingflex Professional R&D and Sales Team
HISTORICAL MILESTONE

A Heritage Built Over 4 Decades

By leveraging the historical expertise and manufacturing backbone of the Jinwei Group, established in 1979, we combine decades of craftsmanship with modern digital manufacturing techniques. Our advanced production technologies enable us to control cell size, density distribution, and thermal expansion properties at microscopic levels.

Jinwei Group Historic Thermal Insulation Plant

Global Sourcing Trends & Industrial Demand Dynamics

A macroeconomic look at why closed-cell elastomeric blankets and rubber foam structures are replacing traditional open-cell insulation systems.

Decarbonization & LEED Compliance

Modern commercial infrastructure demands products that contribute to green building certifications. Energy conservation translates directly to carbon footprint offset, making low thermal conductivity materials essential.

Moisture Vapor Resistance (μ-value)

In cold systems, moisture ingress is the primary cause of thermal failure. High-resistance closed-cell rubber foam functions as its own built-in vapor barrier, maintaining structural integrity over decades.

Extreme Temperature & Cryogenics

With the rise of LNG shipping, petrochemical refining, and aerospace engineering, materials must remain flexible at ultra-low sub-zero environments, avoiding cracking and mechanical failure.

Macro-Industry Solution Architecture

Industrial procurement is no longer just about purchasing a roll of insulation. It's about designing a complex system that balances thermal resistance, fire rating compliance, acoustical damping, and longevity. Kingflex offers engineered insulation blankets that solve the three critical vulnerabilities in industrial piping networks:

  1. Corrosion Under Insulation (CUI): Traditional glass wool or mineral wool absorbs moisture over time, trapping water against metal pipes and causing rapid oxidation. Closed-cell elastomerics do not absorb water, actively shielding structural steel from exposure to ambient moisture.
  2. Thermal Bridging at Pipe Hangers: By utilizing high-density inserts paired with flexible rubber foam, engineers can completely isolate thermal transfer at connection points.
  3. Acoustic Vibration in HVAC Ducts: Rapid pressure changes in industrial ducts cause massive airborne noise. Our elastomeric open-cell soundproofing structures absorb acoustic frequencies, dampening mechanical noise inside hospitals, hotels, and shopping complexes.

Technical Specification & Design Options

Detailed performance parameters for Kingflex Black Rubber Foam Insulation Blankets, Sheets, and Pipes.

Specification Parameter Kingflex Standard Sheet & Roll Range Kingflex Standard Pipe & Tube Range
Base Material Structure NBR/PVC Elastomeric Closed-Cell Polymer NBR/PVC Elastomeric Closed-Cell Polymer
Available Thickness 6mm to 50mm (Customizable) 9mm to 40mm
Inner Diameter (ID) N/A (Flat sheet/roll form) 6mm to 114mm
Foam Density Range 40 to 55 kg/m³ 40 to 55 kg/m³
Service Temperature Limit -40℃ to +105℃ (Ultra-low cryogenic lines available) -40℃ to +105℃
Closed-Cell Rate ≥ 98% ≥ 98%
Moisture Resistance Factor (μ) High moisture barrier resistance High moisture barrier resistance
Flame Retardancy Standard BS 476, Class 0/1, UL94, ASTM E84 compliant BS 476, Class 0/1, UL94, ASTM E84 compliant

5 Automatic Assembly Lines

Equipped with high-throughput computerized extrusion systems that guarantee uniform cell distribution, flat surfaces, and precise thickness dimensional tolerances.

600,000 m³ Annual Output

Our scale guarantees supply chain stability. We are a designated supplier for national ministries including the Ministry of Energy and Chemical Industry.

66+ Exporting Countries

Exporting for over 16 years, our logistics network provides container optimization, seaworthy packaging, and flexible global delivery schedules.

Inside Our R&D Laboratories

Certified Safety & Production Integrity

Meeting global building regulations is critical for large-scale engineering projects. Our facility is certified to the highest standards.

Kingflex thermal insulation solutions hold certifications including BS 476, CE, REACH, RoHS, UL94, and ASTM. Every batch is traceable back to the raw material processing stage, ensuring accountability and peace of mind for engineering inspectors.

Engineering Implementation & Projects

Proven durability across real-world commercial structures, deep-sea vessels, chemical processing pipelines, and high-volume HVAC networks.

Production Facility & Warehousing Gallery

Genuine Customer Satisfaction

Transparency is key. Read authentic screenshots of global buyers confirming product quality, thermal performance, and delivery timelines.

Client Chat Screenshot 1
Client Chat Screenshot 2
Client Chat Screenshot 3
Client Chat Screenshot 4
Client Chat Screenshot 5

Additional Factory Operations

Expert Q&A: Technical & Procurement FAQ

Get answers to common engineering questions regarding the application, properties, and customization of Kingflex rubber foam insulation.

Q1: What is elastomeric rubber foam insulation used for?

A1: It is primarily used for HVAC air duct wrapping, air conditioning chilled or hot water pipelines, commercial building insulation, industrial manufacturing pipeline cold insulation, and high-performance acoustic isolation.

Q2: Is Kingflex rubber foam insulation fire resistant?

A2: Yes, our elastomeric rubber foam is built with advanced fire retardants that meet international BS 476 (Class 0/Class 1), UL94, and ASTM safety standards, rendering it self-extinguishing.

Q3: What is the difference between rubber foam and rock wool insulation?

A3: Rubber foam is highly flexible, closed-cell, and naturally moisture-proof, making it optimal for cooling, HVAC, and condensation control. Rock wool is a fibrous mineral structure with superior high-temperature fire shielding, perfect for heavy industrial furnace pipes but prone to water absorption.

Q4: Do you provide customized insulation products?

A4: Yes, we provide full OEM and ODM services. This includes laminating with aluminum foil protective facings, applying double-sided self-adhesive backings, adjusting density (40-55 kg/m³), or customizing sheet thickness up to 50mm.

Q5: What certifications do your products have?

A5: Our products are fully certified under BS 476, CE, REACH, RoHS, UL94, and ASTM. This guarantees compliance with strict environmental regulations and high fire-safety parameters worldwide.

Q6: Do Kingflex products have batch traceability?

A6: Yes. Every production run has a distinct batch code. We track everything from raw chemical processing to final packaging, maintaining absolute transparency for audits.

Q7: What thickness of rubber foam insulation sheet rolls can you produce?

A7: Our standard extrusion lines can produce sheets from 6mm up to 50mm thick, depending on specific structural R-value target requirements.

Q8: What is the expected service life of Kingflex rubber foam pipe & board?

A8: When properly sized and installed according to engineering guidelines, Kingflex rubber foam insulation will easily perform efficiently for 10 to 15 years.

Explore Core Material Families

Rubber Foam Insulation Products

Closed-cell elastomers for ultimate condensation control and thermal barrier protection.

Glass Wool Insulation Products

Lightweight fiberglass batting structures for structural cavity wall heat resistance.

Rock Wool Insulation Products

Dense mineral fiber blankets offering maximum fire safety and structural acoustic blocking.

Detailed Product Configurations

Specific designs engineered for HVAC air handlers, cryogenic systems, and plumbing installations.

Rubber elastomeric foam insulation tube

Rubber elastomeric foam insulation tube

ID: 6mm-114mm | Wall: 9mm-40mm
Corrosion Resistant Rubber Foam Insulation Tube

Corrosion Resistant Rubber Foam Tube

Built-in moisture shield
Elastic Rubber Foam Insulation Pipe

Elastic Rubber Foam Insulation Pipe

NBR/PVC High-flexibility grade
Black Rubber Foam Insulation Pipe

Black Rubber Foam Insulation Pipe

High closed-cell structure
Foam Rubber Foam Insulation Tube

Foam Rubber Foam Insulation Tube

For hot water plumbing lines
HVAC Rubber Foam Insulation Tube

HVAC Rubber Foam Insulation Tube

Split system A/C specialized
Elastomeric rubber foam insulation system

Elastomeric insulation system for industrial use

High durability composite sheet
Kingflex flexible insulation material for cryogenic

Kingflex flexible cryogenic insulation material

Engineered for sub-zero LNG piping
Cryogenic rubber foam for low temperature

Cryogenic rubber foam for low temp systems

Cracking-resistant formulation
Elastomeric cryogenic insulation

Elastomeric cryogenic insulation system

Low-temp fluid transport piping
Rock Wool Insulation Board

Rock Wool Insulation Board

For high-temp furnace enclosures
rock wool thermal insulation blanket

Rock wool thermal insulation blanket

High structural fire rating shielding

Kingflex Standard Materials Properties & Dimensions

Our products are rigorously categorized to cover every performance parameter. Check the direct configurations below for standard materials:

elastomeric NBR/PVC rubber foam insulation sheet roll

NBR/PVC Rubber Foam Sheet Roll

  • Thickness: 6mm - 50mm
  • Density: 40 - 55 kg/m³
  • Service Temp: -40℃ to 105℃
  • Closed cell rate: >98%
elastomeric NBR/PVC rubber foam thermal insulation pipe tubing

NBR/PVC Pipe Tubing

  • Thickness: 9mm - 40mm
  • ID range: 6mm - 114mm
  • Spray coated interior
  • Antifreeze & anticondensation
Kingflex Customers & Operations

OEM Solutions & Tailored Orders

Custom formulations are designed by our 8 in-house R&D engineers, ensuring structural density matches specific climatic conditions and acoustics requirements.