Aluminum Framed FRP Isolation Panels Panels shall be constructed of an outer framework of 6063-T52 aluminum U-channel 3/4” x 3/4” x 1/8” thick. Internal braces shall be 6061-T6 aluminum H-channels 1-1/2” x 3/4” x 1/8” thick. Bottom portion of isolation panel shall be .030” FRP bonded on each side of a .400” HDPE substrate (specify height). Solid panels to be perimeter sealed to the aluminum framework (specify height). Upper portion shall be 1” grid polyethylene structural foam 7/16” thick (specify height) close window