Kingflex Kingflex

Leading China Insulation Glue Supplier & Advanced Thermal Systems

Engineered Elastomeric Bond Adhesives, Thermal Tubes, Sheet Rolls & Global Insulation System Solutions

The Critical Chemistry of Elastomeric Insulation Adhesive (Insulation Glue)

In mechanical engineering and HVAC installation, thermal insulation is only as robust as its weakest joint. As a premier China insulation glue supplier, Kingflex understands that maintaining a 100% airtight vapor barrier is critical to prevent condensation, pipeline corrosion under insulation (CUI), and thermal loss. The specialized insulation adhesive is formulated utilizing polychloroprene (neoprene) elastomers and synthetic resins to generate high initial tack and ultimate shear strength.

Our formulations are explicitly designed to bond NBR/PVC elastomeric rubber foam sheets and pipes to metallic pipelines, ducts, and complex mechanical geometries. Once dry, the adhesive forms a flexible, water-resistant interface that mimics the physical elasticity of the rubber foam insulation itself. This ensures that thermal contraction and expansion cycles (-40°C to +105°C) do not compromise the joints.

Kingflex Corporate Headquarters and Plant

40+

Years of Legacy

600k+

Annual Capacity (m³)

66+

Global Export Markets

5

Auto Assembly Lines

Global Technological Trends in Mechanical Adhesives

Analyzing key advancements in polymeric bonding, compliance, and material engineering.

Eco-Compliance & Low-VOC

Modern engineering projects strictly mandate LEED and BREEAM certifications. Adhesive formulations are transitioning from toluene-based solvents to eco-friendly, low-odor, low-VOC options that comply with stringent REACH, RoHS, and UL94 emission regulations.

Cryogenic Temperature Stability

With the surge in LNG infrastructure and cold chain pharmaceutical logistics, synthetic rubber sheet adhesives must survive extreme cryogenic states (-200°C) without micro-cracking or losing cohesive bond integrity.

Rapid-Cure Contact Formulations

On-site labor efficiency determines project profitability. Instant green-strength and short open-time window adhesives accelerate installation of NBR rubber foam insulation tubes and sheets on high-throughput assembly sites.

Manufacturing Facilities & Quality Inspection

Global Enterprise Procurement & Technical Compliance

International mechanical engineering consultants, EPC contractors, and global HVAC distributors evaluate thermal insulation systems based on rigorous life-cycle cost analysis and international safety codes. Kingflex is engineered to meet and exceed global demands:

  • BS 476 Part 7 / Class 0: Crucial fire classification requirements for marine, civil construction, and defense industries.
  • Vapor Transmission Impedance: Maintaining a closed-cell structural rate above 98% is vital. Standard adhesives must guarantee a water vapor diffusion resistance factor (μ) ≥ 10,000 to keep thermal performance constant for over 15 years.
  • Extreme Subzero Application: Synthetic cryogenic rubber insulation sheets depend on high-performance adhesives to block ambient air leakage on LNG pipelines.

China Factory 4.0: Manufacturing Excellence & Scale

Explore Kingflex's cutting-edge production base in Dacheng, China—the green-building capital.

Our manufacturing and R&D facility operates under a Factory 4.0 architecture, optimizing batch consistency and high volume yield. Kingflex has established 5 large automated production assembly lines capable of yielding over 600,000 cubic meters of high-density and low-density rubber foam insulation annually.

Our operational model is deeply integrated with energy saving and carbon reduction initiatives designated by the Ministry of Energy, Ministry of Chemical Industry, and Ministry of Electric Power. By managing our complete chemical blending operations locally, we provide a unified supply chain solution—delivering the precise chemistry of insulation adhesive needed to bond our elastomeric sheets and tubes with zero compatibility issues.

Metric Value / Parameter Global Standards
NBR/PVC Foam Density 40 - 55 kg/m³ ASTM D1667 / ISO 845
Thermal Conductivity ≤ 0.034 W/(m·k) at 0°C ASTM C518 / ISO 8301
Water Vapor Permeability ≥ 1.0 x 10^-11 g/(m·s·Pa) ASTM E96 / BS EN 12086
Service Temperature Limit -40°C to +105°C BS EN 14706 / ASTM C411

Technical Specification & Engineering Dimensions

Precise parameters for designing HVAC systems, industrial piping layouts, and structural insulation projects.

Black Rubber Foam Insulation Sheet Roll

Material Structure: High-density NBR/PVC closed-cell elastomer.
Thickness Options: 6mm, 9mm, 13mm, 16mm, 19mm, 25mm, 32mm, 40mm, 50mm.
Primary Performance Benefits: Uniform cell structure, reliable moisture barrier performance, fast compression resilience (over 80%), and robust flame retardant chemistry.

Common Applications:

Wide-area HVAC square air duct lining, acoustic partition dampening, heavy petrochemical storage tanks, marine transport wall insulation, and cleanroom ceiling panels.

Black Rubber Foam Insulation Pipe / Tube

Material Structure: Extruded elastomeric rubber compound.
Wall Thickness: 9mm, 13mm, 19mm, 25mm, 32mm, 40mm.
Inner Diameter (ID) Range: 6mm up to 114mm.
Thermal Conductivity Factor: Low thermal bridge design minimizes pipeline condensation and freeze-thaw cracking hazards.

Common Applications:

Central chiller chilled water line routing, industrial hot water service lines, solar thermal water pipes, marine copper refrigeration pipelines, and sanitary drainage networks.

Our Legacy: Jinwei Group & Kingflex

Established under the parent entity, Jinwei Group, which has a manufacturing history of more than 40 years dating back to 1979, Kingflex was founded as a cornerstone thermal insulation producer. Over the years, we grew to become the pioneering manufacturer of green insulation materials north of the Yangtze River.

Our elite engineering unit operates a dedicated Research and Development department housing 8 professional materials scientists. They work alongside 6 experienced international sales executives and over 230 highly skilled factory technicians to support supply chain demands in over sixty-six countries.

Inside our state-of-the-art R&D center and laboratory.

Global Project Accomplishments & Quality Certificates

Verifiable compliance to international standards and proof of successful implementation.

Industrial Project Highlights

From municipal HVAC systems to chemical pipeline retrofits, Kingflex products have been specified in landmarks worldwide. We maintain complete product traceability, allowing engineers to verify raw material sources and mechanical compliance metrics from factory to installation site.

Real-time Client Communication & Feedback

Our commitment to speed and technical clarity is evident in our customer interaction records. Below are visual records of our customer relations and communication history, demonstrating rapid order processing and high global client satisfaction.

Production Facility & Processing Archives

Technical Q&A Archive

Detailed technical specifications, certification, safety validation, and insulation glue application queries.

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, sound insulation, and preventing condensation on process piping.
Q2: Is Kingflex rubber foam insulation fire resistant?
Yes, our rubber foam insulation products are fire retardant, meeting strict safety standards for commercial buildings and industrial projects, including BS 476 and UL94 Class V-0 ratings.
Q3: What is the difference between rubber foam and rock wool insulation?
Rubber foam is flexible, closed-cell, and moisture-proof, making it ideal for HVAC and building insulation. Rock wool is high-temperature resistant and fireproof, making it suitable for high-temperature industrial steam piping and boilers.
Q4: Do you provide customized insulation products?
Yes, we offer comprehensive OEM services, including custom sizes, dimensions, packaging, and specific chemical properties for insulation adhesives, to meet different project needs.
Q5: What certifications do your products have?
Our products have passed BS 476, CE, REACH, RoHS, UL94, ASTM, and other international certifications, ensuring compliance with strict global standards.
Q6: Does Kingflex products have traceability?
Yes, all Kingflex products have complete batch traceability. Our raw materials, production line records, and quality check sheets are recorded for every order.
Q7: What thickness of Rubber foam insulation sheet roll can you produce?
We can produce from 6mm up to 50mm thickness to support both residential systems and extreme temperature industrial applications.
Q8: What is the service life of rubber plastic pipe and board?
Under proper installation and environmental conditions, our products have a service life of about 10 to 15 years.
Q9: Why is the choice of Insulation Glue critical for installation?
Elastomeric foam insulation relies on airtight joints to prevent moisture vapor transmission. If the seams are joined with low-quality adhesive, the joints will separate under thermal cycles, letting ambient moisture enter and leading to mold, condensation, and corrosion.