Kingflex Kingflex

Wholesale Fireproof Tape UK Factory & Pricelist

High-Performance Elastomeric & Thermal Insulation Systems for Global Heavy Industries, UK Commercial HVAC, and High-Temperature Fire Containment Applications

1. Global B2B Procurement Trends & UK Fire Safety Mandates

Understanding the macroeconomic forces, regulatory standards, and engineering specifications driving demand for elastomeric fire-rated materials.

The Evolving Dynamics of Fireproof Containment

Within the global HVAC, mechanical services, and industrial processing landscapes, fire safety is no longer merely a checklist item; it is a critical regulatory pillar. In the United Kingdom, structural changes to the Building Regulations (such as Approved Document B) and heightened insurance standards demand insulation materials with verified fire propagation characteristics. Procurement professionals are actively transitioning to high-density, closed-cell NBR/PVC matrices equipped with integrated fire-retardant tapes to seal seams and joints, preventing thermal bridging and toxic smoke spread.

For B2B buyers seeking wholesale suppliers, key parameters such as BS 476 Part 6 & 7 compliance (Class 0 and Class 1 ratings), smoke emission toxicity, and aging thermal conductivity coefficients dictate engineering choices. Secure jointing systems using specialized industrial fireproof tapes ensure that insulation sheets do not separate during sudden thermal expansion, maintaining the system's thermal integrity and safety profiles under extreme flame conditions.

UK Building Regs (Approved Document B): Requires non-combustible or limited-combustibility characteristics for high-rise buildings and technical plant rooms.
Vapor Transmission Barrier Management: Closed-cell structures (closed-cell rate >98%) block humidity, preventing Under-Insulation Corrosion (CUI).
Intumescent & Fireproof Sealing: High-performance tape acts as the critical barrier, guaranteeing flame containment at joints and penetrations.

2. Macro-Industry Solutions & Engineered Applications

How Kingflex materials resolve complex temperature, acoustic, and safety challenges across diverse industrial landscapes.

HVAC & Mechanical Systems

Prevents surface condensation on cold water lines and ductwork. High moisture resistance prevents mold growth in commercial spaces like hotels, hospitals, and shopping centers, while maintaining BS 476 Class 0 fire spread ratings.

Cryogenics & Cold Storage

For extreme temperature control down to -40°C. Kingflex flexible insulation prevents cracking under freeze-thaw cycles, maintaining elasticity and structural integrity in cold chain storage facilities and low-temperature process piping.

Acoustic Dampening

Our flexible closed-cell rubber foam functions as an effective noise reduction barrier, absorbing vibration and structural sounds in high-traffic mechanical plant rooms and industrial air ducts.

Technical Matrix: NBR/PVC Foam vs. Traditional Mineral Rock Wool

Performance Property Kingflex Elastomeric NBR/PVC Foam Traditional Rock Wool Blanket Industrial Fireproof Tape Sealant
Thermal Conductivity (λ) ≤ 0.034 W/(m·K) at 0°C ≤ 0.040 W/(m·K) at 25°C N/A (Joint Barrier Only)
Moisture Resistance (μ) ≥ 10,000 (Closed-cell prevents ingress) Low (μ ≈ 1, requires vapor jacket) Hydrophobic adhesive backer
Fire Safety Rating BS 476 Class 0, UL94 V-0 Non-combustible (Class A1) Flame-retardant self-extinguishing
Physical Flexibility Highly elastic, limits installation time Rigid/Semi-rigid, prone to shedding fibers Conformable to sharp angles & tees

Kingflex Insulation Co., Ltd.

Kingflex Insulation Co., Ltd. is a leading professional manufacturing and trading group specialized in thermal and acoustic insulation products. Established by the Jinwei Group, which holds a rich heritage of over 40 years since its founding in 1979, Kingflex has grown from the pioneer manufacturer of thermal insulation materials north of the Yangtze River to a globally recognized brand exporting to over 66 countries.

Our manufacturing and R&D facility is situated in Dacheng, China—a well-known industrial hub for green building materials. As an energy-saving, environmentally friendly enterprise, we specialize in high-quality research, development, production, sales, and installation support.

Our production facilities feature 5 large automatic assembly lines, delivering an annual production capacity exceeding 600,000 cubic meters. Kingflex is designated as an approved manufacturer by the Ministry of Energy, the Ministry of Electric Power, and the Ministry of Chemical Industry.

Kingflex Factory Infrastructure
40+
Years of Heritage
Jinwei Group founded in 1979, providing decades of engineering expertise.
600K
Annual Capacity (m³)
Five fully automated continuous foaming and processing lines.
66+
Global Export Nations
Supplying building, marine, aerospace, and energy sectors globally.

3. Standard Technical Specifications & Dimensions

Factory specifications for our primary NBR/PVC Elastomeric Foam insulation profiles.

Black Rubber Foam Insulation Sheet Roll

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


Key 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.

Black Rubber Foam Insulation Pipe / Tube

Material: NBR/PVC Blend
Thickness Options: 9mm - 40mm
Inner Diameter (ID): 6mm - 114mm
Density Range: 40 - 55 kg/m³
Service Temperature: -40℃ to 105℃


Key Advantages:

  • Professional pipe spraying equipment ensures even coating.
  • Greatly reduce pipe freezing and cracking risks.
  • Flame retardant, self-extinguishing.
  • Highly flexible, saving installation labor on complex layouts.
  • Low thermal conductivity under high humidity conditions.
Kingflex Manufacturing Line and Storage Kingflex R&D Team

4. Technical Roadmap & Future Innovations

Investing in green formulations, advanced fire barriers, and sustainable raw material alternatives.

Halogen-Free Formulations

Kingflex is developing advanced eco-insulation rolls free from halogenated flame retardants, minimizing toxicity and acid gas release during fire scenarios, meeting the strictest EU standards.

Smart Foil Facings

We are researching aluminum foil laminates integrated with sensor pathways to monitor insulation performance and detect moisture infiltration before structural damage occurs.

Bio-Based Plasticizers

Our goal is to replace petroleum-derived plasticizers with renewable bio-components, reducing our carbon footprint while maintaining flexibility and flame-retardant properties.

R&D Division and Testing Infrastructure

Our dedicated R&D department features testing systems to evaluate flame spread indexes, smoke density ratings, and environmental resistance under simulated aging conditions.

Lab Testing Thermal Conductivity Testing Production Lab Quality Control

5. Certifications & Compliance Standards

Tested and verified by international authorities to meet construction, safety, and health guidelines.

Rigorous Compliance & International Testing

Our insulation materials undergo regular testing to meet strict safety and quality standards across Europe, the UK, Asia-Pacific, and the Americas.

  • BS 476 Parts 6 & 7: Class 0 and Class 1 ratings for fire propagation and flame spread.
  • UL 94 Vertical Burning Test: Meets V-0 standards for self-extinguishing behavior.
  • CE Mark: Compliant with EU construction product directives.
  • REACH & RoHS: Free from heavy metals and hazardous substances.
  • ASTM Standards: Certified for water absorption and thermal stability.
BS 476 Certification Page 1 ISO Certification Page 2 Testing Report Certification Page 3 Factory Audit Certification Page 4

6. Client Satisfaction & Project Case Studies

Ensuring product traceabilty, engineering support, and reliable logistics for global builders and industrial distributors.

Real-Time Project Coordination

We work closely with project engineers, quantity surveyors, and procurement managers to ensure custom thicknesses, densities, and adhesive backings are delivered on schedule.

B2B Order Chat Screenshot 1 B2B Order Chat Screenshot 2 B2B Order Chat Screenshot 3
B2B Order Chat Screenshot 4 B2B Order Chat Screenshot 5

Recent Project Installations

Kingflex materials are used in projects worldwide, from municipal district heating systems to pharmaceutical cold storage units and high-rise commercial structures.

HVAC Duct Project Installation Complex Piping Setup Mechanical Room Layout Insulation Finishing

Partner Galleries & Global Project Highlights

7. Industrial Insulation & Fireproof Tape FAQ

Common technical questions for mechanical engineers, HVAC contractors, and wholesale procurement managers.

Q1: What is elastomeric rubber foam insulation used for?
It is primarily used for HVAC ducts, air conditioning piping systems, commercial building insulation, low-temperature cold storage lines, and industrial steam pipeline insulation. Its closed-cell design prevents moisture absorption and reduces acoustic transfer in high-traffic mechanical rooms.
Q2: Is Kingflex rubber foam insulation fire resistant?
Yes, our rubber foam insulation sheets and tubes contain high-performance flame-retardant additives. They are designed to meet strict fire protection safety requirements, including BS 476 (Class 0 and Class 1) and UL94 V-0 certifications, meaning they self-extinguish when the flame source is removed.
Q3: What is the difference between rubber foam and rock wool insulation?
Rubber foam features a flexible, closed-cell, moisture-proof structure, making it ideal for HVAC, refrigeration, and acoustic applications. Rock wool is a high-density mineral fiber that excels in high-temperature settings, offering non-combustible structural protection for furnaces and industrial exhaust lines.
Q4: Do you provide customized insulation products?
Yes, we offer comprehensive OEM and ODM services. We customize dimensions, sheet thicknesses, tube inner diameters, density profiles, and surface finishes (such as self-adhesive backings and protective aluminum foils) to meet specific project guidelines.
Q5: What certifications do your products have?
Our products are certified to global standards, including BS 476, CE, REACH, RoHS, UL94, and ASTM. This ensures compliance for projects in Europe, North America, the UK, and Asia-Pacific.
Q6: Does Kingflex products have traceability?
Yes, we implement complete batch traceability. Every shipment is tracked from raw material sourcing through foaming, cutting, packaging, and shipping to ensure consistent quality and ease of verification.
Q7: What thickness of Rubber foam insulation sheet roll can you produce?
We can manufacture continuous sheet rolls and boards in thicknesses ranging from 6mm up to 50mm, allowing for tailored thermal and acoustic performance.
Q8: What is the typical service life of rubber plastic pipes and boards?
When installed correctly and sealed with high-performance adhesive and vapor barrier tapes, our NBR/PVC insulation typically has a service life of 10 to 15 years, even in challenging indoor and outdoor environments.

Authorized Distributor & Partner Networks

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