FireDefender® Mineral Core material fills most of the space in the interior of a door. It is relatively light in density at approximately 32 pounds per cubic foot. It has excellent thermal properties and through-bolting is allowed, but it is not intended to provide screw-holding capabilities.
FireDefender® mineral cores are made of a proprietary mix of various minerals, fiberglass, and inert binders. They are available in a variety of thicknesses ranging from 1.500″ – 2.000″ (38mm – 51mm) and in various sizes up to a maximum of 34-1/2″ x 82″ (876mm x 2083mm). The mineral core is easily sawn with ordinary woodworking equipment and can be pieced together to make doors as large as four feet wide and ten feet tall. Georgia-Pacific mineral core is also approved for use in temperature rise applications in wood fire doors.
1.485-1.6875 in – 3.8-4.3 cm
3.5-4.5 lbs./ft2 – 17.0-22.0 kg/m2
28-35 lbs/ft3 – 454-567 kg/m3
250-400 lbs/in2 – 1724-2758 kPa
85-125 lbs – 39-57 kg
20-40 lbs/in2 – 138-276 kPa
Doors built with FireDefender® components have been successfully tested to meet all the following standards:
BS 476 PART 22
Japanese Industrial Standard