Armaflex - Armaflex is the most recognized and trusted brand of foam insulation. Armaflex insulation products are the number one choice for commercial and residential foam insulation used for mechanical insulation, refrigeration, air conditioning, duct work or any application that requires prevention of heat loss or gain. Armaflex products prevents condensation, and the closed cell structure is fiber free, non-eroding and non-particulating. It’s also formaldehyde-free and low VOC.