MR GRADE BLOCK BOARD

    IS:1659-2004

    MR Grade Block Board is manufactured from the combination of select seasoned, durable hard wood, timber pattens and veneers. The resin gives our board strong enough to resist warm water upto 8hrs. This are bonded with Urea Melamine Formaldehyde Resin under high pressure and temperature.

    Thickness(MM)
    19mm
    8x4
    8x3
    7x4
    7x3
    6x4
    6x3
    5x4
    5x3
    Thickness(MM)
    25 to 35
    Length
    Width
    6
    2.25
    6.25
    2.5
    6.5
    2.75
    6.75
    3
    7
    3.5
    8
    4

    Technical Specification

    Test Prescribed in IS:1659-1990 Minimum Value Observed Value
    Dimentional Changes Caused by Humidity No-delamination in the extreme range of humidity. Dimensional change not more than ±1mm in local planeness. No-delamination observed. Dimensional change within the specifies limit.
    Mycological Test No appreciable sign of seperation edges. Satisfactory
    Adhesive of Plies Minimum Pass Standard Excellent
    Water Resistance (Soaking of test pieces for 3hrs in water at 60±2°C Minimum Pass Standard Excellent
    Modulus of Elasticity 4000 N/sq.mm 5015 N/sq.mm
    Modulus of Rupture 40 N/sq.mm 53 N/sq.mm

    BWP GRADE BLOCK BOARD

    IS:1659-2004

    BWP grade Block Board is made from selected hIgher density timbers. It is bonded with a high quality phenol formaledhyde (PF) resin pressed at a high temperature and pressure to ensure optimum strength and durability .It is highly rigid because of its dimensional stability.

    Thickness(MM)
    19mm
    8x4
    8x3
    7x4
    7x3
    6x4
    6x3
    5x4
    5x3
    Thickness(MM)
    25 to 35
    Length
    Width
    6
    2.25
    6.25
    2.5
    6.5
    2.75
    6.75
    3
    7
    3.5
    8
    4

    Technical Specification

    Test Prescribed in IS:1659-1990 Minimum Value Observed Value
    Dimentional Changes Caused by Humidity No-delamination in the extreme range of humidity. Dimensional change not more than ±1mm in local planeness. No-delamination observed. Dimensional change within the specifies limit.
    Mycological Test No appreciable sign of separation edges. Satisfactory
    Adhesive of Plies Minimum Pass Standard Excellent
    Hot Water Resistance There shall not be any Delamination after 72 hours of boiling. No-delamination observed.
    Preservation Treatment Through and through penetration of preservative chemicals should be observed. Confirmed
    Modulus of Elasticity 5000 N/sq.mm 6050 N/sq.mm
    Modulus of Rupture 50 N/sq.mm 64 N/sq.mm
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