May 17, 2016 · Foam Factory’s 2.8LB Lux-HQ foam is high-quality foam, perfect for the most demanding jobs. For nventional open-cell foam, materials in this range are the best of the best. mpared to the lowest density materials, high-quality foam can have double or even triple the physical foam mass packed into the same 12” x 12” x 12” testing size.