High-performance acoustic elastomers optimized to control sound transmission and mechanical vibration in heavy-duty commercial zones.
High damping factor elastomer designed for structural sound decoupling in mining rigs and marine engines.
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Specially engineered open-cell structure ideal for direct acoustic wave capture and thermal management.
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Flame retardant, lightweight composite panels designed for wall acoustic linings and heavy fan rooms.
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Durable sheet material balancing heat barrier properties with exceptional noise dampening performance.
Inquire PriceSouth Africa's industrial sector operates under unique challenges. High temperatures, localized infrastructure challenges, and strict regulatory standards require high-performance insulation. SANS 10400-XA energy standards demand sustainable systems. Sound dampening and thermal efficiency must go hand-in-hand.
In deep-level mining operations across the Witwatersrand Basin and the Rustenburg platinum belt, mechanical noise inside processing plants reaches hazardous levels. Traditional fiberglass materials fall short under high pressure and moisture. High-density, elastomeric open-cell and closed-cell rubber foams from Kingflex offer reliable sound absorption and durability.
Modern HVAC systems in Johannesburg, Cape Town, and Durban are transitioning to green building protocols (GBCSA). Specifying rubber-foam systems with precise acoustic properties minimizes structural vibration, lowering the carbon footprint and noise pollution.
The global demand for elastomeric rubber-foam technology is growing rapidly. Driven by LNG storage, chilled-water infrastructure, and industrial ventilation, project managers need certified products.
Delivering scalable production, tested quality, and customized sizes from Dacheng, China to global ports.
As an energy-saving enterprise focusing on R&D and production, Kingflex Insulation Co., Ltd. has established a reliable supply chain. Our facility in Dacheng, China, features automated production processes that maintain structural consistency.
With a raw material processing system for NBR (Nitrile Butadiene Rubber) and PVC (Polyvinyl Chloride), we control the chemical blending, foaming ratio, and cell-opening steps. This level of quality control allows us to offer:
Optimizing acoustic results requires selecting the proper foam structure. The table below outlines how sound interacts with different material densities and structures.
| Performance Vector | Open-Cell Elastomeric Foam | Closed-Cell Elastomeric Foam | Composite Foil-Faced Sheets |
|---|---|---|---|
| Acoustic Mechanism | Air friction within internal cell pathways converts sound waves into heat energy. | Acts as a barrier to block lower frequencies and reduce vibration. | Combines structural barriers with reflective sound shielding. |
| Noise Reduction Coeff (NRC) | 0.75 – 0.90 (Excellent high-frequency absorption) | 0.15 – 0.30 (Limited absorption, strong dampening) | 0.45 – 0.60 (Balanced barrier properties) |
| Moisture Absorption Risk | Moderate (Requires external vapor barrier in wet environments) | Virtually zero (μ ≥ 10,000, blocks moisture ingress) | Zero on outer face (Protected by foil layer) |
| Typical South African Use Cases | Indoor generator enclosures, theater soundproofing, HVAC duct lining. | Chilled water pipes in Durban, mining pump casings, outdoor ducts. | Mining vehicle cabs, industrial plants, machinery enclosures. |
Explore our range of elastomeric sheet rolls, pre-formed piping insulation, and low-temperature systems designed for commercial and industrial use.
Pre-formed elastomeric piping designed for reliable condensation control and acoustic dampening.
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Nitrile-butadiene rubber composition offering durability and stability across temperature variations.
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Specialized multi-layer barrier protecting petrochemical containment from thermal loss.
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Rolls designed to reduce vibration and structure-borne sound in metal buildings.
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Designed to handle thermal stress down to -200°C, preventing structural cracking.
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Color-coded sheets that identify pipe contents while managing noise in open-ceiling layouts.
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High-density rubber-foam sheets featuring a closed-cell backing to prevent moisture absorption.
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Environmentally friendly design that prevents the release of toxic smoke in fire situations.
Send InquiryEnsuring complete system integration for soundproofing, structural thermal break, and surface protection.
Direct wholesale pricing structure optimized for major import distributors and project developers.
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UV-reflective foil composite that handles direct solar radiation in sunny climates.
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Decorative, fire-resistant acoustic sheets suitable for visible office structures.
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Features a pressure-sensitive adhesive backing for fast installation on complex ducts.
Inquire NowKingflex Insulation Co., Ltd. is a professional manufacturing and trading combo for thermal insulation products. Kingflex research development and production department is located in Dacheng, China, a central hub for energy-efficient building materials. Focused on energy saving, we provide comprehensive insulation solutions, supporting projects from initial consultation and design through installation guidance and after-sales support.
Kingflex was established by the Jinwei Group, which brings over 40 years of manufacturing experience. Established in 1979, the group was one of the early developers of thermal insulation materials in northern China. Over the decades, we have continuously modernized our facilities to supply demanding construction and chemical projects worldwide.
Our R&D department features 8 professional engineers, alongside 6 international sales representatives and a workforce of 230 in production. This combined expertise ensures consistent product quality and smooth export coordination for our global client base.
Tested and certified solutions for extreme temperature ranges, mechanical vibration control, and commercial buildings.
Pre-formed tube designed to fit standard hot/cold pipelines, preventing condensation.
Formulated to block corrosive chemicals in chemical processing facilities.
Highly flexible piping insulation designed for tight turns and bends.
Standard-compliant piping insulation for HVAC, refrigeration, and heating systems.
Lightweight elastomeric tube designed for quick installation on plumbing pipes.
Engineered to limit vibration noise from duct connections and compressor pipes.
Maintains flexibility and prevents cracking at sub-zero cryogenic temperatures.
Industrial-grade roll material designed for cryogenic storage tanks and transport pipes.
Multi-layer elastomeric material optimized for liquid nitrogen and ethylene lines.
Specialized formulation designed for thermal stability and crack resistance.
High-density mineral fiber boards that offer fire resistance and structural acoustics.
Flexible mineral wool blanket designed for industrial ovens, boilers, and high-temp pipes.
Our R&D team continuously tests physical properties, thermal conductivity, and fire safety ratings. We operate dedicated laboratory facilities to verify that our elastomeric foam meets global construction and safety standards.



Kingflex products are certified under international compliance systems, ensuring they meet the requirements of public and industrial projects.




We maintain long-term partnerships with global procurement officers, engineering managers, and insulation distributors. Our customer interactions reflect our commitment to responsive service and product quality.






Direct collaboration with global industrial distributors
Kingflex elastomeric sound absorption and thermal insulation materials are utilized across diverse sectors, including commercial HVAC, mining, and heavy manufacturing.
High-velocity ventilation systems in large commercial buildings can transfer fan noise into office areas. Installing Kingflex open-cell soundproofing sheets inside or around ducts helps reduce noise levels.
Industrial processing plants in South Africa require durable materials that can withstand continuous operational stress and impact.
Illustrating installation details, material structure, and physical properties.
Designed for thermal insulation and acoustic control in major infrastructure projects.
Material: NBR/PVC Blend
Thickness Options: 6mm - 50mm
Density: 40 - 55 kg/m³
Service Temperature Range: -40℃ to 105℃
1. Uniform cell expansion with a closed-cell rate exceeding 98% for thermal efficiency.
2. Low moisture absorption helps prevent corrosion under insulation (CUI).
3. Compression resilience over 80% ensures longevity under physical pressure.
4. Rated as flame retardant and self-extinguishing for fire safety.
Pre-formed pipe insulation designed to protect refrigeration lines and plumbing from temperature loss and condensation.
Thickness Range: 9mm - 40mm
Inner Diameter (ID): 6mm - 114mm
Density: 40 - 55 kg/m³
Service Temp Range: -40℃ to 105℃
• Automated spray application ensures an even internal coating.
• Reduces vibration and prevents pipe freezing and cracking.
• Installs quickly on long piping runs with minimal seams.




Ensuring consistent product availability and shipping coordination for global projects.





























Detailed answers to common technical, design, and shipping questions for engineers and purchasing agents.
Contact our technical team for product samples, customized drawings, or factory-direct pricing for your next project.
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