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MaxFlex

MAXFLEX FR STANDARD elastomeric flat sheet

Flat elastomeric sheet for air ducts, large chilled-water pipes, tanks and equipment — prevents condensation and reduces energy loss.

Thickness
3–50 mm
Thermal conductivity (λ)
0.033 / 0.035 / 0.038 W/m·K at 0 / 24 / 40 °C mean · ASTM C177, ASTM C518, EN ISO 8497
Service temperature range
-57 – 125 °C

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Product details

Duct and HVAC insulationElastomeric rubber foamMaxFlex

Closed-cell EPDM, flat sheet 1.2 × 0.9 m

Thickness
3–50 mm
Thermal conductivity (λ)
0.033 / 0.035 / 0.038 W/m·K at 0 / 24 / 40 °C mean · ASTM C177, ASTM C518, EN ISO 8497
Service temperature range
-57 – 125 °C

What is it?

MAXFLEX FR STANDARD flat sheet is fibre-free closed-cell EPDM insulation in 1.2 × 0.9 m sheets, 3–50 mm thick, for air-conditioning ducts, large chilled-water pipes, tanks and equipment surfaces. The 3 and 6 mm sheets have a skin on one side. Outdoors it should be clad with metal sheet or coated as the maker recommends.

What is it made of?

Elastomeric rubber foam · Sheet

Which sizes are available?

Thickness 3–50 mm — Choose a size

Limitations to know

The maker recommends FR STANDARD for operating temperatures up to 100 °C; outdoors it should be clad with metal sheet or painted with Maxcoat.

Where does the data come from?

MAXFLEX FR STANDARD catalogue (FLEX 08/24)

Technical data from the manufacturer's documents MaxFlex · Checked 12 Oct 2026

Technical specifications

All values come from the manufacturer's documents, with conditions and test standards. Values the documents do not state are not shown.

PropertyValueConditions / standardSource
Sheet size1.2 × 0.9 m3–50 mm thickMAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 5
Thermal conductivity (λ)0.033 / 0.035 / 0.038 W/m·Kat 0 / 24 / 40 °C mean · ASTM C177, ASTM C518, EN ISO 8497MAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 3
Density48 – 96 kg/m³ASTM D1667MAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 3
Service temperature range-57 – 125 °C—MAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 3
Reaction to fireClass 0 (Part 6) · Class 1 (Part 7)BS 476MAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 3
Reaction to fire25/50flame spread / smoke developed · ASTM E84MAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 3
Water vapour diffusion resistance (μ)≥ 12,000EN 12086MAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 3

Models and sizes available

ModelThickness (mm)Width (mm)Length (mm)
MSF03FR31200900
MSF06FR61200900
MSF09FR91200900
MSF13FR131200900
MSF16FR161200900
MSF19FR191200900
MSF25FR251200900
MSF32FR321200900
MSF38FR381200900
MSF50FR501200900

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Applications

Highlights

  • Closed-cell EPDM, fibre-free
  • Flat sheet 1.2 × 0.9 m
  • 3–50 mm thick

Manufacturer documents

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