... STD,HP,HA,HZ 4. best commercial service Cermaic fiber blanket DKJL spun ceramic fiber blanket, all of which are lightweight and thermally efficient, resulting ... temperature 2600 °F General Densities: 6, 8 Ibs./cu. ft. (96, 128 kg/m3) General Thicknesses: 1/2", 1", 1-1/2 ...