PLAIN MDF SPECIFICATION

  • 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

    -