Ergonomics/Safety — Raw Materials Kerfkore Co. AFWS Fair Booth #1025 Foamkore-FR is an ASTM E 84 Class A product that consists of a high density Magnesium Oxide (MgO) Board face that is non-flammable and non-combustible combined with a lightweight core to create a structural balanced lightweight non-combustible panel. Kerfkore says Foamkore-FR has been tested in accordance with ASTM E 84 and achieved the results of 0 in flame spread and smoke development. Foamkore-FR has the big advantage of weight reduction of 60% or more; the reduced weight allows for usage where heavier panels would be prohibited therefore making it a suitable material for areas where weight and fire rating is a requirement. Kerfkore.com.