Name: MAXFLEX FR STANDARD elastomeric sheet roll
Brand: MaxFlex

Product details

Duct and HVAC insulationElastomeric rubber foamMaxFlex

Closed-cell EPDM, continuous sheet roll 1.2 m wide

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 sheet roll is fibre-free closed-cell EPDM insulation. The maker describes it for both interior and exterior insulation of air ducts, and it also wraps large chilled-water pipes and tanks. Rolls are 1.2 m wide and 3–50 mm thick; 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 · Roll

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.

Property	Value	Conditions / standard	Source
Thickness	3 – 50 mm	roll 1.2 m wide, 2.4–21.9 m long depending on thickness	MAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 5
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	MAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 3
Density	48 – 96 kg/m³	ASTM D1667	MAXFLEX 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 fire	Class 0 (Part 6) · Class 1 (Part 7)	BS 476	MAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 3
Reaction to fire	25/50	flame spread / smoke developed · ASTM E84	MAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 3
Water vapour diffusion resistance (μ)	≥ 12,000	EN 12086	MAXFLEX FR STANDARD catalogue (FLEX 08/24), p. 3

Models and sizes available

Model	Thickness (mm)	Width (mm)	Length (mm)
MSR03FR	3	1200	15000
MSR06FR	6	1200	21900
MSR06FR	6	1200	15000
MSR09FR	9	1200	15200
MSR09FR	9	1200	15000
MSR13FR	13	1200	11000
MSR13FR	13	1200	15000
MSR16FR	16	1200	9700
MSR16FR	16	1200	15000
MSR19FR	19	1200	7000
MSR19FR	19	1200	15000
MSR25FR	25	1200	5500
MSR25FR	25	1200	15000
MSR32FR	32	1200	4000
MSR32FR	32	1200	6000
MSR38FR	38	1200	3000
MSR38FR	38	1200	4000
MSR50FR	50	1200	2400
MSR50FR	50	1200	4000