PLAIN MDF SPECIFICATION
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Sl No.
Property
Unit
IS 12406 - 2003
(Plain)
Grade II
Grade I
1
Density
Kg/m3
600 - 900
600 - 900
2
Variation from mean density
%
±10
±10
3
Moisture Content
%
05-Oct
05-Oct
4
Variation from mean moisture content
%
±3
±3
5
Water absorption (maximum)
%
a. After 2 hr. soaking
9
6
b. After 24hr. soaking
i. Upto and including 6mm thick
45
30
ii. 7 to 12mm thick
30
20
iii 13 to 19mm thick
20
13
iv 20mm and above thick
18
12
6
Linear Expansion (maximum)
%
a. Due to general absorption after 24 hr soaking
i Thickness
7
4
ii Length
0.4
0.3
iii Width
0.4
0.3
b. Due to surface absorption (in thickness)
5
4
7
Modulus of rupture
N/mm2
a. Up to 20mm thickness
i Average
28
28
ii Minimum Individual
25
25
b. Above 20mm thickness
i Average
25
25
ii Minimum Individual
22
22
8
Modulus of elasticity
N/mm2
a. Up to 20mm thickness
i Average
2800
2800
ii Minimum Individual
2500
2500
b. Above 20mm thickness
i Average
2500
2500
ii Minimum Individual
2300
2300
9
Internal Bond
N/mm2
a. Upto 20mm thickness
i Average
0.8
0.9
ii Minimum Individual
0.7
0.8
b. Above 20mm thickness
i Average
0.7
0.8
ii Minimum Individual
0.6
0.7
10
Internal Bond
N/mm2
a. After cyclic test *
i Average
-
0.45
ii Minimum Individual
-
0.4
b. After accelerated water resistance test *
i Average
-
0.3
ii Minimum Individual
-
0.25
11
Screw withdrawal strength( minimum)
N
a. Face
1500
1500
b. Edge (for thickness > than 12mm)
1250
1250
12
Abrasion Resistance (Minimum) resolutions
Nos.
i Type -I
-
-
ii Type - II
-
-
iii Type - III
-
-
iv Type - IV
-