Armaflex EVO Elastomeric Foam Sheet Insulation Armaflex EVO sheet insulation is Armacell's flexible closed-cell elastomeric foam (FEF) for insulating ducts, vessels, tanks, fittings, valves and complex pipework where pre-formed tube insulation is not practical. The range includes both non-adhesive and factory self-adhesive sheet formats, with thickness and roll/sheet dimensions varying by selected variant. The closed-cell structure provides thermal insulation and high resistance to water-vapour diffusion, while the EVO formulation offers low smoke development and built-in Microban® antimicrobial protection. Key Features Reaction to fire: sheet material achieves Euroclass B-s2,d0 to EN 13501-1 Low thermal conductivity: λd ≤ 0.036 W/(m·K) at 0°C for sheets 3–32mm; λd ≤ 0.037 W/(m·K) at 0°C for sheets above 32mm up to 50mm Water-vapour diffusion resistance: μ ≥ 7,000 Microban® antimicrobial protection: built into the insulation material Self-adhesive option: factory-applied adhesive backing for faster application to suitable clean, dry surfaces Flexible sheet format: suited to flat surfaces and fabricated insulation details Technical Specifications Material: Flexible elastomeric foam based on synthetic rubber (FEF), to EN 14304 Colour: Black Operating temperature: -50°C to +85°C for sheet products Thermal conductivity, 3–32mm sheet: λd ≤ 0.036 W/(m·K) at 0°C and 0.041 W/(m·K) at 40°C Thermal conductivity, above 32–50mm sheet: λd ≤ 0.037 W/(m·K) at 0°C and 0.042 W/(m·K) at 40°C Water-vapour diffusion resistance: μ ≥ 7,000 Reaction to fire: B-s2,d0 to EN 13501-1 Antimicrobial: Built-in Microban® antimicrobial protection UV exposure: outdoor ArmaFlex installations require suitable UV protection Available Formats Choose Self Adhesive or Non Adhesive, then select the required insulation thickness and sheet/roll size from the variant selector. The live variant options show the exact dimensions and purchase unit for each product. Available thicknesses include 3mm, 6mm, 10mm, 13mm, 19mm, 25mm and 32mm, with a 50mm self-adhesive format also listed where available. Applications Ductwork and air-handling equipment Tanks, vessels and larger pipework Elbows, valves, flanges and fittings Fabricated insulation details and complex shapes HVAC, refrigeration and chilled-water systems Heating and process-equipment applications within the stated temperature range Installation Install in accordance with the current ArmaFlex application manual. Non-adhesive sheet should be bonded with a compatible ArmaFlex adhesive where full-surface bonding is required. For self-adhesive sheet, apply to suitable clean, dry surfaces and follow Armacell's preparation and installation guidance. Self-adhesive backing does not remove the need to seal butt joints, edges and fabricated details correctly. Use a compatible ArmaFlex adhesive where required to maintain a continuous insulation and vapour-control system. Complete Your Installation For non-self-adhesive applications and joint sealing, use Armaflex 520 Adhesive where suitable and prepare surfaces in accordance with Armacell guidance. For straight pipe runs, Armaflex EVO Pipe Insulation Tubes provide a pre-formed alternative.
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