Technical Data

Physical and mechanical parameters of MDF

Parameter

Unit

Standards EN 622-1, EN 622-5, Tab.3

Testing standard

Thickness

mm

>4 do 6

>6 do 9

>9 do 12

>12 do 19

>19 do 30

>30 do 38

Density

kg/m3

780

770

760

750

730

710

EN 323

Bending strenght

N/mm2

23

23

22

20

18

17

EN 310

Integral bond

N/mm2

0,65

0,65

0,60

0,55

0,55

0,50

EN 319

Moduls of elasticity

N/mm2

2700

2700

2500

2200

2100

1900

EN 310

Swelling after 24h*

%

30

17

15

12

10

8

EN 317

Tearing off

N/mm2

>1

EN 311

Free formaldehyde content

mg / 100 g.s.m.

<8

EN 120

Hygiene class

E1

EN 120

Mineral particle content*

%

<0,1

Sample combustion and HCI etching method

Moisture content

%

od 4 do 11

EN 322

Thickness tolerance

mm

+/- 0,20

 +/- 0,30

EN 324-1

Length and width tolerance

mm

+/- 2 mm/m (max +/- 5mm)

EN 324-1

Squareness tolerance

mm/m

2

EN 324-2

Edge straightness tolerance

mm/m

1,5

EN 324-2

The above physical and mechanical parameters relate also to Krono Stop Fire MDF fire-retardant boards.

Thickness and size of MDF

Size (length x width) mm

Thickness mm

2800 x 2070

6

(8)*

10

12

16

18

19

22

25

28

(30)*

(32)*

38

* on request