• Exterior Sheathing Panel
  • Interior Wall Panel
  • Ceiling Panel
  • Roofing Underlayment
  • Sub-floor
  • High Impact Wall Assembly for hurricane regions
Material:
    DragonBoard® is manufactured from mineral components, with
    fibrous reinforcement, and does not contain any toxic ingredients or
    asbestos.  It is light tan to cream in color.  Standard production
    material is very smooth on one side and sand-textured rough on the
    other.  Standard edges are square or tapered.  Special edges are
    available on order.

Size:
    The standard thicknesses of the 4’x 8’ panels are: 6mm (1/4”), 8mm
    (3/8”), 10mm (7/16”), 12mm (1/2”), 14mm (9/16”), 16mm (5/8”),
    18mm (3/4”), and 25mm (1”).   Other sizes and thicknesses can be
    ordered.

Properties:
            FIRE RESISTANT: Tests under modified ASTM E-119,
    performed on a 4 inch thick wall panel assembly of steel studs and
    one 10mm (7/16”) DragonBoard skin on each side, with a layer of
    fiberglass wool filler between the skins, resulted in 2 hour fire rating.  
    The same test with one 14mm (9/16”) DragonBoard skin on each
    side resulted in 3 hour fire rating.  The same material is rated 0,0 for
    flame spread and smoke propagation under ASTM E-84.
            WATER RESISTANT: DragonBoard has been subjected to a
    controlled immersion test where samples of 10mm and 14mm thick
    DragonBoard were placed in closed container of water and exposed
    to freeze and thaw cycles for a period of 36 months.  At the
    completion of the test, there was no appreciable change in the
    physical properties of DragonBoard.
            BUG FREE, FUNGUS / MOLD FREE: DragonBoard does not
    support insect life and is non-nutrient to mold or fungus growth.  It
    has been tested for fungus resistant properties under ASTM G-21
    and found to be non-nutrient.  This non-nutrient property is inherent
    in the DragonBoard composition.
            IMPACT RESISTANT: DragonBoard’s strength is in the same
    order of magnitude as plywood and can be used as sub-floor and in
    the areas where high impact resistance is needed, such as hallways,
    laboratories, and public places.  The special designed high impact
    DragonBoard wall assemblies can pass the "missile test" required by
    Florida to sustain the high wind of hurricane.

Installation:
            FABRICATION: DragonBoard may be scored and snapped,
    cut, trimmed, drilled or shaped using ordinary power or hand tools.  
    The use of a dust mask is recommended for cutting operations.
            FASTENING: DragonBoard panels may be fastened to
    supporting joists using self-drilling, self-countersinking, corrosion
    protected cement board screws. Fasteners should be spaced at 12”
    intervals along edges.  Spacing may be increased to 18” at
    intermediate joists.
            CAUTIONS: Fasteners should not be closer than 2 inches
    from a corner, with the adjoining screw not less than 4 inches from
    the same corner.  Do not install screws on 45 degree angles at
    corners.  Board ends must be supported by joists.  Fasteners must
    always be installed over supporting structure.  Do not install surface
    coverings by driving screw fasteners except over supporting
    structure.  Cantilever overhangs are not recommended.  Fasteners
    should not be closer than ¾” to any edge.  Do not fasten coverings
    directly to DragonBoard with mechanical fasteners (nails, screws,
    staples, etc.).

Finishing:
    The smooth side of the DragonBoard is suitable for painting or
    wallpapering with no further preparation, and the rough side is
    suitable for application of ceramic tile.  Either solvent based oil paint
    or water based latex paint can be used.  If the panels are to be
    directly exposed to rain and weather, it may be desirable to apply a
    prime coat of acrylic-siloxane waterproofing sealer, followed by oil
    based paint.  Where DragonBoard is to be used as a mounting
    surface for ceramic tile, as in a bath or shower enclosure, the use of
    solvent based tile mastic is recommended.


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