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Attachment Details k-flex-building-insulation-materials-flexible-duct-accessories-in-srilanka-incube-holdings
k-flex-building-insulation-materials-sri-lanka-flexible-duct-accessories-incube-holdings

K-FLEX ST DUCT – Elastomeric Duct Insulation

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Applications: Thermal and Acoustic insulation of Ventilation and Air-Conditioning Ducts; ideal for Hospitals, Pharmaceutical Labs, and Hotels. Key Features: 1500mm standard width (matching duct size), Closed-cell Elastomeric structure, Fiber-free, available in Self-Adhesive variants. Compliance: Euroclass B-s3, d0, pH Neutral (7 ± 1), resistant to mold and bacterial growth, meets high-performance energy efficiency standards.

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K-FLEX ST DUCT is a high-performance elastomeric insulation sheet specifically engineered for the thermal and acoustic insulation of ventilation and air-conditioning ducts. Unlike traditional mineral wool, this synthetic rubber (FEF) solution features a closed-cell structure that prevents moisture ingress and fiber shedding, ensuring a cleaner and more durable installation. The material is designed with a standard width of 1500 mm to match common duct dimensions, significantly reducing installation time and waste. Its self-adhesive version features a roughened surface to improve grip on metal surfaces, while its high elasticity helps attenuate system vibrations at joints and suspensions.

Real-World Applications

  • Commercial HVAC Systems: Extensively used in shopping malls, office complexes, and hotels for insulating supply and return air ducts to prevent condensation and energy loss.

  • Hygiene-Sensitive Environments: Ideal for hospitals, pharmaceutical laboratories, and food processing plants because it is fiber-free and resistant to mold, fungi, and bacterial growth.

  • Acoustic Vibration Dampening: Applied in mechanical rooms and recording studios to reduce the transmission of noise and vibrations generated by high-velocity airflow and air handling units.

  • Industrial Ventilation: Suitable for pre-insulating duct segments at the workshop before site delivery, thanks to its mechanical flexibility and strong adhesive backing.

Specification (from Product Catalog)

  • Temperature Range: -40 °C to +85 °C

  • Thermal Conductivity ($\lambda$): * Thickness $\leq$ 25mm: 0.033 W/(m•K) at 0 °C | 0.037 W/(m•K) at +40 °C

    • Thickness $>$ 25mm: 0.036 W/(m•K) at 0 °C | 0.040 W/(m•K) at +40 °C

  • Water Vapour Diffusion Resistance ($\mu$): $\geq$ 7000

  • Fire Rating: Euroclass B-s3, d0 (Standard Sheet)

  • Corrosion Prevention: pH Neutral (7 $\pm$ 1)

  • Available Thicknesses: 6, 8, 10, 12, 15, 20, 25, and 30 mm

  • Sheet Width: 1500 mm (Standard) / 1800 mm (Upon Request)

Authorized Distribution in Sri Lanka

To ensure the highest standards of installation and product authenticity, Incube Holding Sri Lanka serves as the primary sales and distribution agent for official K-FLEX elastomeric insulation and HAPRI building insulation products. Specializing in the Thermal and Acoustic Insulation Solutions sector, Incube Holding provides enterprise clients and contractors in Sri Lanka with direct access to these premium insulation systems, backed by comprehensive technical support and local expertise.

For reliable, durable, and energy-efficient ducting solutions that meet international safety and environmental standards, trust the partnership between K-FLEX and Incube Holding to deliver world-class insulation technology to your project.

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