Epdm foam | CutWise

EPDM Foam (Ethylene Propylene Diene Monomer Sponge Rubber)

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EPDM Foam is a synthetic closed-cell sponge rubber made from ethylene propylene diene monomer. This material is known for its excellent weather resistance, UV stability, and durability, making it ideal for demanding environments. Thanks to its elastic properties and ability to retain shape after compression, EPDM Foam is widely used for sealing and insulation applications.
Well-known trade names include Keltan®, Nordel®, and Vistalon®.

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EPDM Foam (Ethylene Propylene Diene Monomer Sponge Rubber) cutting

Properties of EPDM Foam

Excellent resistance to UV radiation, ozone, and weather
Wide temperature range: from -40 °C to +120 °C
Good thermal and acoustic insulation properties
Lightweight and flexible, retains shape after compression
Resistant to water, steam, and various chemicals
Non-dusting and fiber-free
Easy to process and bond
Durable and low-maintenance

These properties make EPDM Foam a versatile material for sealing, insulation, and damping applications across multiple industries.

Datasheet Title

Technical properties of EPDM Foam

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Product information and operations

Thickness	Dimensions	Color
2 mm	2000x1000 mm	Zwart
3 mm	2000x1000 mm	Zwart
5 mm	2000x1000 mm	Zwart Zwart Zelfklevend
6 mm	2000x1000 mm	Zwart
8 mm	2000x1000 mm	Zwart
10 mm	2000x1000 mm	Zwart

Technical properties

Algemeen

Dichtheid 180–200 kg/m³

Kleur Zwart

Oppervlakteafwerking Fijn gestructureerd

Temperatuurbereik

Gebruikstemperatuur minimaal -40 °C

Gebruikstemperatuur maximaal +120 °C

Mechanische eigenschappen

Hardheid (Shore OO) 50–60

Treksterkte 780–850 kPa

Rek bij breuk 140–180%

Compressieset (25%, 22u @ 23 °C) 4–5%

Thermische eigenschappen

Warmtegeleidingscoëfficiënt ca. 0,04 W/m·K

Lineaire uitzettingscoëfficiënt ca. 0,05 mm/m·K

Applications of EPDM Foam

Seals for windows, doors, and shutters

Insulation in HVAC systems (heating, ventilation, air conditioning)

Automotive: gaskets, seals, and vibration dampers

Construction: expansion joints and façade seals

Electrical enclosures and outdoor cabinets

Acoustic panels and soundproofing

Packaging material for sensitive equipment

Shock-absorbing sports and playground flooring

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Frequently Asked Questions about EPDM Foam

What’s the difference between EPDM Foam and solid EPDM rubber?

EPDM Foam has a closed-cell structure, making it lighter and more flexible than solid EPDM—ideal where compression and thermal/acoustic insulation are critical.

Is EPDM Foam suitable for outdoor use?

Yes, its excellent resistance to UV, ozone, and weathering makes it perfect for long-term exterior applications.

Can EPDM Foam be bonded?

Yes, EPDM Foam bonds easily with the right adhesives, depending on the substrate and application.

Is EPDM Foam flame-retardant?

Standard EPDM Foam is not inherently flame-retardant. Fire-rated versions are available where required.

How does EPDM Foam perform at low temperatures?

EPDM Foam remains flexible and maintains its sealing properties down to –40 °C, suited for cold environments.

Is EPDM Foam chemical-resistant?

It resists many chemicals (acids, bases), but is less suitable for oil or hydrocarbon exposure.

What thicknesses is EPDM Foam available in?

Available from a few millimeters up to several centimeters, depending on supplier.