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FR 1 MDF
(Flame Retardant Class 1 MDF)
Certification
Robin FR 1 MDF is specially made for critical applications where Class 1 flame retardant material is required.
Robin FR 1 MDF has a significantly delayed combustion and does not contribute to flame spread.
Robin FR 1 MDF is ideal for interior and non-structural use, especially in public areas such as schools, hotels,
hospitals, airports, theaters, etc.
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BS 476-7:1997 Classification of Spread of Flame
This method of test is to determine the classification of the surface spread of flame of products. It basically covers the distance of MDF burnt by heat within a specific time of 1.5 minutes and 10 minutes exposure.
Based on the test performance table shown below, materials classified as Class 1 is the best classification and Class 4 is the worst classification. Class 4 materials are considered high risk.
Evaluation of BS 476-7:1997 Classification of Spread of Flame
Class 1 (No Flame Spread)
Class 2 (Slight Flame Spread)
Class 3 (Average Flame Spread)
Class 4 (High Flame Spread)
Classification
Spread of flame at 1.5 min
Final Spread of flame at 10 min
Classification of Spread of Flame
165 mm (limit)
165 mm (limit)
215 mm (limit)
265 mm (limit)
455 mm (limit)
710 mm (limit)
Excedding the limits for Class 3
Physical & Mechanical Properties of Standard Grade FR 1 MDF
EN 319
Density
Board Property
Test
Method
Unit
EN 323
kg/m3
Board Moisture
Modulus of Rupture
Internal Bond
Screw Holding (Face) *
Screw Holding (Edge) *
Thickness Swelling **
Thickness Tolerance
Dimension (length/width) Tolerance
Squareness
Edge Straightness
Minor Stains, Fibre Marks, Scratch Lines
Latex Spots
Size of Latex Spots
EN 322
EN 310
EN 320
EN 320
EN 317
EN 324-1
EN 324-1
EN 324-2
EN 324-2
%
%
N/mm2
N/mm2
mm
N
N
mm/m
mm/m
9.0
> 9.0 - 12.0
> 12.0 - 18.0
Range of Nominal Thickness (mm)
760 - 800
770 - 790
750 - 770
4 - 9
4 - 9
4 - 9
32
30
28
0.70
0.70
0.65
-
1050
-
-
-
850
17
15
12
+/- 0.20
+/- 2 mm/m ; maximum +/- 5 mm
2
1.5
Free on one side
Not more than 5 spots
Not more than 6 mm
* Screw Holding only for thickness 15mm and above
** 24-hour immersion in 20 (+/-1) degrees Celsius water
Formaldehyde Emission
Board Property
Perforator Method
Small Chamber (CARB)
Test Method
Unit
Classification
EN 120
ASTM D 6007
mg/100g o.d.
ppm
E1 - Equals or less than 8.0
E2 - Equals or less than 30.0
CARB P2 - Equals or less than 0.11