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Micore 300 (Flame Resistant Mineral Fiber Core & Backer Board)



Versatile, high performance core or substrate
  • Handles more easily than gypsum panels and particle board
  • Outstanding versatility adapts to a variety of applications
  • Simplified component assembly saves time and money
  • Smooth, coated finish maintains tighter tolerance
  • Exceptional tackability
  • Good sound control

    Micore® Brand 300 Board from USG is a superior substrate for fabric and vinyl-covered wall panels, office dividers and tackboards. An excellent core for chalkboards. stove boards, and similar applications. MICORE Brand 300 Board offers outstanding residence. superior machinability. high "k" factor, heavy density and highest surface hardness of any MICORE board




  • Specifications  · Physical Properties  · Acoustical Performance (Based on perforated product only)  · Storage and Handling  · Advantages  · Limitation

    Specifications

    Thickness

    3/8 in
    7/16
    in
    1/2
    in
    5/8
    in
    3/4
    in
    375
    mm
    438
    mm
    500
    mm
    625
    mm
    750
    mm

    Tolerance of Thickness

    ± 0.015" sanded and coated

    Tolerance of Width and Length (per 4ft)

    ± 1/16" (0.0625")

    Density

    24 ±2 lb/ft³


    Physical Properties

    Surface Burning Characteristics - Flame Spread

    View
    25

    Surface Burning Characteristics - Smoke Delivered

    10

    Weight

    500 to 2000 lb/MSF

    Modulus of Rupture

    350 to 450 lb/in²

    Modulus of Elasticity

    30000 to 35000 lb/in²

    Tensile Strength (Parallel to Surface)

    225 to 275 lb/in²

    Tensile Strength (Perpendicular to Surface)

    20 to 30 lb/in²

    Hardness (Janka Ball)

    50 to 70 lb

    Hygrometric Expansion From 50% to 90% R.H.

    0.1 %

    Thermal Conductivity

    k Factor - 0.458
    R Value (1/2" board) - 1.09


    Acoustical Performance (Based on perforated product only)

    STC Rating

    24
    25

    26

    28

    NRC

    0.25
    0.25 to 0.30

    0.30 to 0.35


    Storage and Handling
    All materials shall be delivered in their original unopened packages and stored in an enclosed shelter providing protection from damage and exposure to the elements. Damaged or deteriorated materials shall be removed from the premises.



    Advantages
    MICORE Brand 300 board is nearly 50% lighter than particle board, which allows for easier handling and lower freight rates, it also outperforms gypsum panels in workability-the inorganic mineral fibers resist moisture, minimizing expansion and warpage. And the board cuts quickly to size and shape specifications using standard equipment while adapting readily to last-minute design changes. What's more. MICORE Brand 300 Board outperforms particle board and other wood-fiber boards for flame spread and sound absorption



    Limitation
    Exposure to excessive or continuous moisture should be avoided.



     DOWNLOADS 

    Data Sheet for Micore 300 (Flame Resistant Mineral Fiber Core & Backer Board)
    (PDF, 60KB)


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