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The different fire classes of aixFOAM sound absorbers

Acoustic absorber without fire protection additive

Acoustic absorbers without flare retardant additive are used wherever fire safety measures are not relevant. Depending on the location and application (proximity of electrical components, sockets, heaters, etc.), please decide whether you need sound absorbers with a fire protection additive. As a manufacturer of high quality sound insulation elements, we offer solutions in the various fire protection classes up to highly flame retardant acoustic elements according to DIN4101 B1. In principle, we recommend that our customers ask an expert, architect or the planning authorities about this subject in order to prevent unintended use.

DIN 4102 B1

DIN 4102 defines the fire behaviour of construction materials and components. The classic standard assigned to building codes, which defines the degree of flammability of building materials and the fire resistance of components. Fire protection class B1 is the largest possible fire protection class that acoustic foam can achieve without the addition of non-mineral components. Acoustic foams with this fire protection class are self-extinguishing. These include our thermoset foams in the Architect Line or Engineer Line area in the online shop. The corresponding test standard can be downloaded here.

DIN 4102 B2

DIN 4102 defines the fire behaviour of construction materials and components. The classic standard assigned to building codes, which defines the degree of flammability of building materials and the fire resistance of components. Fire protection class B2 materials are deemed to be normally flammable, but burn quite slowly. The corresponding test standard can be downloaded here.

FMVSS 302 DIN 75200

Acoustic foams with fire protection class FMVSS 302 are mainly used in vehicle production and machinery construction. The rate of flame spread in the event of a fire was contained by adding flame retardants. (4 inch/minute)
The corresponding test standard can be downloaded here.

UL94 HF1

The UL 94, a test requirement for assessing fire properties of polymer materials, is one of the important requirements for the sale of electrical appliances and other electronic applications in the USA, Canada and Mexico. These acoustic foams are self-extinguishing and do not drip.
The corresponding test standard can be downloaded here.

FAR 25.853

FAR 25.853 vertical burn test was carried out by the Lufthansa Technik laboratories in Hamburg and documented by Lufthansa Technik AG test certificate under test number 6040/2005. It is a Flammability Material Test Certificate FAR25.853 recognised by the Federal Aviation Office. Here, a sample is exposed to vertical flame with a Bunsen burner (800 °C) for 12 seconds. The flame must extinguish itself after 15 seconds and the flame must not spread more than 8 inches (203 mm).
The corresponding test standard (test result aixFOAM Acoustic Foam) can be downloaded here.

Please understand that we as the manufacturer cannot recommend a fire class to you. We recommend clarifying which fire class you require with the appropriate authorities (local authorities).

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