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K-FLEX ST Elastomeric Insulation Sheet – Rolls (Standard & Self-Adhesive)
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£902.10
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K-FLEX ST Elastomeric Insulation Sheet – Rolls
K-FLEX ST sheet insulation in roll format, manufactured from the same closed-cell elastomeric foam as the K-FLEX ST tube range. Ideal for insulating flat surfaces, ductwork, tanks, vessels, and irregular shapes where pre-formed tube sections cannot be used. Available in Standard and Self-Adhesive backing types across a wide range of thicknesses from 3mm to 50mm.
The Self-Adhesive variant features a factory-applied pressure-sensitive adhesive backing for fast, clean installation without additional adhesive. Both types deliver the same excellent thermal, moisture, and vapour resistance performance.
Key Features
- Closed-cell elastomeric foam — excellent thermal and moisture resistance
- Available in Standard and Self-Adhesive backing types
- Wide thickness range: 3mm to 50mm
- Flexible and easy to cut and fabricate on site
- Suitable for HVAC ductwork, tanks, vessels, and flat surfaces
- Supplied in rolls
- CE certified
Typical Applications
- HVAC ductwork insulation
- Tanks, vessels, and cold store panels
- Flat surface and bespoke fabrication
- Chilled water and refrigeration plant
- Acoustic and thermal insulation of building services
Technical Specifications
| Material | Closed-cell flexible elastomeric foam (FEF) |
| Temperature range | -50°C to +105°C (continuous) |
| Thermal conductivity (λ) | ≤ 0.036 W/(m·K) at 0°C |
| Reaction to fire | Euroclass BL-s3, d0 (EN 13501-1) |
| Water vapour diffusion resistance (μ) | ≥ 7,000 |
| Standard | EN 14304 |
| Format | Rolls |
| Available thicknesses | 3mm, 6mm, 10mm, 13mm, 19mm, 25mm, 32mm, 40mm, 50mm |
| Backing options | Standard, Self-Adhesive |
| Colour | Black |
| Brand | K-FLEX |