Browse our top-tier catalog of elastomeric, low-density, and cryogenic rubber foam insulation systems engineered for maximum moisture barrier and thermal retention.
Thermal management is at the heart of global industrial decarbonization efforts. Flexible closed-cell elastomeric thermal insulation, primarily composed of a balanced blend of Nitrile Butadiene Rubber (NBR) and Polyvinyl Chloride (PVC), has become a core material choice in modern construction and mechanical systems. By preventing thermal transmission and condensation formation on cold pipes, this material preserves critical energy resources in HVAC, industrial piping, marine environments, and district cooling grids.
In highly industrialized areas, heat exchange loss directly contributes to elevated energy consumption and higher operating expenses. Black color rubber foam insulation tubes leverage carbon black additives to enhance dynamic structural resistance against UV radiation and physical degradation. The manufacturing density typically hovers between 40kg/m³ to 55kg/m³, allowing for optimal air entrapment while maintaining elasticity and resistance to mechanical impact.
From cryogenic terminals to high-rise building services, this insulation addresses the twin requirements of keeping energy loss to an absolute minimum and mitigating Corrosion Under Insulation (CUI). By sealing off surface moisture completely, it prevents ambient humidity from contacting steel or copper piping, avoiding premature component replacement.
Kingflex insulation products are manufactured under rigorous automated process lines, ensuring an ultra-high closed-cell ratio exceeding 98%. This tiny microcell layout locks air in place, which yields an exceptionally low thermal conductivity ($k$-value) that remains consistent throughout years of service life.
| Characteristic | Standard Values (Sheet) | Standard Values (Pipe) | Testing Compliance |
|---|---|---|---|
| Material Base | Premium NBR/PVC Elastomer Blend | Premium NBR/PVC Elastomer Blend | ISO 9001 Base |
| Thickness Range | 6mm - 50mm | 9mm - 40mm | ASTM C534 |
| Internal Diameter (ID) | N/A (Roll / Sheet Format) | 6mm - 114mm | GB/T 17794 |
| Density | 40 - 55 kg/m³ | 40 - 55 kg/m³ | ASTM D1622 |
| Service Temperature Limit | -40℃ to 105℃ | -40℃ to 105℃ | EN 14706 / 14707 |
| Moisture Resistance Factor | μ ≥ 7000 (Low Absorption) | μ ≥ 7000 (Low Absorption) | BS EN 12086 |
| Flame Retardancy | Class 0 / Class 1 / Self-extinguishing | Flame Retardant, Self-extinguishing | BS 476, UL94 V-0, ASTM E84 |
This closed-cell density is the main shield against moisture ingress. Unlike open-cell structural insulation alternatives (like fiberglass or open-cell polyurethane), the water vapor diffusion resistance index (μ) is so high that it requires no external vapor retarder wrap under normal HVAC operating parameters. This simplifies installation, lowering the risk of execution errors on construction sites.
The applications for NBR/PVC foam cross several commercial domains:
In humid coastal zones, standard insulation materials can decay or experience waterlogging. With its integrated closed-cell skin, Kingflex NBR/PVC keeps moisture out, offering a durable long-term insulation solution.
Q1: What is elastomeric rubber foam insulation used for?
A1: It is mainly used for HVAC ducts, air conditioning pipes, building thermal insulation, industrial pipeline cold insulation, and sound insulation to prevent thermal loss and eliminate moisture condensates.
Q2: Is Kingflex rubber foam insulation fire resistant?
A2: Yes, our rubber foam insulation is fire retardant, conforming to national and international fire safety standards (like Class 0, Class 1, BS 476, and UL 94 V-0) to limit flame propagation and smoke density.
Q3: What is the difference between rubber foam and rock wool insulation?
A3: Rubber foam is highly flexible, features a closed-cell structure, and offers built-in moisture-proofing, making it suitable for HVAC chilled lines and cold applications. Rock wool is high-temperature resistant and fireproof, suited for industrial high-temperature steam lines.
Q4: Do you provide customized insulation products?
A4: Yes, we provide full OEM service, including custom thickness configurations, specific inner diameters, self-adhesive facings, and aluminum foil laminates to meet specific project guidelines.
Q5: What certifications do your products have?
A5: Our materials are certified under BS 476, CE, REACH, ROHS, UL94, and ASTM. This guarantees compliance with quality and toxicity safety standards globally.
Q6: Does Kingflex products have traceability?
A6: Yes, all Kingflex production batches are systematically indexed, allowing full raw material and manufacturing line traceability.
Q7: What thickness of Rubber foam insulation sheet roll can you produce?
A7: We produce rubber foam rolls in thicknesses ranging from 6mm to 50mm, accommodating a wide range of industrial and building design requirements.
Q8: What is the service life of rubber plastic pipe and board?
A8: Under normal indoor operating conditions and proper installation, the functional service life is estimated at 10 to 15 years.
The next decade of building design focuses on reduced carbon footprints and low-VOC emissions. To meet these targets, Kingflex is researching halogen-free fire retardants that maintain a high fire safety rating while avoiding toxicity concerns during fire events. Additionally, we are looking into integrating bio-based polymers to offset traditional petrochemical inputs.
Our engineering roadmap also includes the development of smart insulation systems featuring integrated thin-film heat sensors. These sensors can notify facilities managers of thermal bridging issues or moisture presence before physical decay begins, optimizing overall system performance.
Kingflex Insulation Co., Ltd. is a specialized manufacturer and trading provider of thermal insulation products. Our R&D and production departments are located in Dacheng, China—a hub for green building materials.
Established by the Jinwei Group, which has a legacy dating back to 1979, Kingflex stands on over 40 years of industry experience. Jinwei was the first manufacturer of thermal insulation materials north of the Yangtze River, laying the groundwork for our current manufacturing capabilities.
Our team works toward a shared vision of providing reliable service and support to our clients globally.
Our team includes 8 professional R&D engineers, 6 international sales specialists, and 230 trained workers in our production department.
We perform regular testing of materials to verify parameters such as thermal performance, cell structure, density, and fire retardancy before shipment.
Our production facilities are certified to international standards to ensure product quality and project compliance.
Our commitment to product standards and quality is reflected in our ongoing client collaborations.
Compare dimension capabilities, thermal ranges, and installation configurations for our two primary product classes.
Ideal for large diameter piping, flat ductwork, vessels, and complex industrial equipment shapes. Provides broad coverage to minimize seams and simplify installation.
| Parameters | Value & Ranges |
|---|---|
| Material Base | Premium NBR/PVC Blend |
| Thickness | 6mm - 50mm |
| Density | 40 - 55 kg/m³ |
| Service Temperature Limit | -40℃ to 105℃ |
Key Advantages:
Primary Applications:
Pre-formed cylindrical tubes designed to fit standard copper, iron, and steel pipe sizes. The flexible profile allows for easy installation around bends and fittings.
| Parameters | Value & Ranges |
|---|---|
| Material Base | Premium NBR/PVC Blend |
| Thickness | 9mm - 40mm |
| Inner Diameter (ID) | 6mm - 114mm |
| Density | 40 - 55 kg/m³ |
| Service Temp. Limit | -40℃ to 105℃ |
Key Advantages:
Primary Applications:
Explore our full line of thermal insulation options, including cryogenic elastomers, noise barriers, and high-temperature mineral rock wool.
We export our products globally, offering solutions for residential, commercial, and industrial thermal insulation projects.
Browse our range of self-adhesive options, soundproof barriers, flexible piping, and dedicated installation accessories.
Kingflex
