MDF B1 flame retardant – lightweight
FIBRABEL FR / Firax L
B1 Type L-MDF-FR according to DIN EN 622-5
approx. 600 kg/m3 bulk density
Area of application
Fire-retardant lightweight MDF for general use in non-bearing dry environments.
MDF with low density and with a hard, finely sanded surface and a well screw-mountable core, with special fire-retardant properties. Suitable for industrial processing for interior decoration and furniture production. It can also be finished with paper, melamine, composite lay-ups or veneer. MDF Firax L is flame retardant (European fire behaviour class B) with has fire-retarding properties and helps prevent the fire from spreading. The boards emit low quantities of formaldehyde (class E1). Different national and international test reports are available.
Using the product
MDF Firax L is suitable for applications that required high fire resistance like fire doors or walls, and application areas in which low fire behaviour and propagation of flames is important, such as e.g. staircases, evacuation routes, elevator shafts, halls. The boards are used especially in public buildings like hospitals, airports, roadhouses, theatres, hotels and the like.
The boards must be used only according to use class 1 (restrictions for ambient temperature and humidity) and hazard class 1, EN 335-3. The boards must have no direct contact with water. Any stacking must be done quickly on a pallet or with a sufficient number of crossbeams. Boards must not be stored upright unless floor contact can be ruled out. Under fluctuating humidity conditions, the boards either expand or shrink. Use suitable tools for sawing, milling and drilling.
The fire-retardant products and paints in the boards can impair specific glues or varnishes in exceptional cases. Always carry out advance tests.
Dimensions and stock program
Thickness: 10 to 25 mm standard – other thicknesses available upon request. Max. width and length: 244–255 to 635 cm. Spanolux has high capacity saws and can provide all dimensions. The pressing capacities generally enable delivery of all thicknesses, lengths and widths.
|in mm||in mm|
|1220 x 2440||1220 x 3050|
Refer to the individual items for details on packaging units in pcs.
You can find the data sheet with technical details in the Downloadcenter.
|General properties + standard||Einheit||Average values|
|Thickness EN 324-1||mm||12||15||18||25|
|Thickness EN 323||Kg/m³||630||620||620||620|
|Moisture content EN 322||%||6-10||6-10||6-10||6-10|
|Technical properties + standard||5/95 quantile values|
|Swelling/24u EN 317||%||16||14||14||12|
|Tensile strength EN 319||N/mm²||0,45||0,45||0,45||0,45|
|Bending strength EN 310||N/mm²||20||18||18||15|
|Bending elasticity modulus EN 310||N/mm²||1700||1600||1600||1500|
Fibreboard specificationsPart 1: General requirements
|Nominal diameter classes (mm)|
|Tolerances with nominal dimensions:|
|Thickness||EN 324-1||mm||± 0,2||± 0,3|
|Length and width||EN 324-1||mm/m||± 2,0 mm/m, max. ± 5,0 mm|
|Perpendicularity||EN 324-2||mm/m||2,0 mm/m|
|Deviations from the straightness of length and width||EN 324-2||mm/m||1,5 mm/m|
|Tolerance for board thickness||EN 323||%||± 7,0|
|Formaldehyde perforator class E1||EN 120||mg/100g||8|
Spanolux has the following product certificates for MDF Firax:
ISIB Belgium: A1
UK, Warrington Fire: class 1
France, CSTB: M1
France, CSTB melamine coated 80 to 160 g/m²: M1
Italy, Ministry of Internal Affairs: Classe Prime
Spain, Applus: M1
USA, HPVA: C
Combustion:30 mm/hour or 0.5 mm/min