Plain MDF Board – Exterior Grade

plain-mdf-board-exterior-grade1full-pinkExterior grade is recommended for exterior application where the panel is exposed to moisture and high humidity. It has high water resistant properties. On Customer’s specifications, the boards can be treated to make them fungus & termite resistant.

Advantages

Homogeneous structure and uniform properties ensure equal strength in all directions
Dimensional stability in variable atmospheric conditions
Absence of knots or grains
Has high screw retention strength on face and edges
Does not splinter or flake
Can be moulded, profiled, routed, carved and grooved like “Natural Wood” .It can also be laminated,veneered, —-lacquered, painted, printed or coated with PVC.

Applications
Furniture,Partition,Flooring & Ceiling,Wall paneling,Kitchen cabinets and shutters

Physical and Mechanical and Mechanical Properties of
PLAIN MEDIUM DENSITY FIBER BOARDS

PROPERTIES UNITS Plain MDF Boards Specification as per IS : 12406-2003 Grade 1(Exterior Grade)
1) Bulk density Kg/m3 500-900
2) Variation from mean density % + / – 10
3) Moisture content % 5 to 15
4) Variation from mean moisture content % + / – 3
5) Water absorption (Max.) % ———
a)After 2 hrs. soaking ——— 6
b)After 24 hrs. soaking ——— 12
6) Linear expansion (swelling in water) % ———
a)Due to general absorption after
2 hours soaking
——— ———
1) Thickness ——— 4
2) Length ——— 0.3
3) Width ——— 0.3
b) Due to surface absorption ——— 4
7) Modulus of rupture (Min.) N/mm2 ——–
a) Upto 20 mm thickness ——— 28
b) Above 20 mm thickness ——— 25
8) Tensile strength perpendicular to surface (min) ——— —-
a) Upto 20 mm thickness ——— 0.8
b) Above 20 mm thickness ——— 0.7
9) Tensile Strength Perpendicular (Min.) N/mm2 —–
a) After cyclic test ——— 0.4
b) After Accelerated Water Resistance ——— 0.25
10) Screw withdrawal strength (Min.) N/mm2 —–
a) Face ——— 1500
b) Edge ——— 1250
11) Thermal Conductivity(max)
kcal-cm/m2/h/ °C
——— 0.12

Standard size:

2440mm x 1830mm (8’x6′)
2440mm × 1220mm (8’x4′)
2440mm x 915mm ( 8’x3′)
1830mm x 1220mm (6’x4′)

Standard thickness:

8mm 11mm 12mm
17mm 18mm 25mm
30mm 35mm