These are 2'x4' sound panels cut from a combination of two layers of melamine foam with a layer of sound barrier treatment (dB-Bloc) sandwiched between the foam layers. Ideal for sound enclosure linings around noise sources where high temperature or open flames exist. Easy to custom cut onsite and affix to walls using a heavy-duty water-based construction adhesive. The material measures 1-3/8" thick. Available in 3 colors and two facings, flat or mini wedge (egg-carton shape is the default option). A protective tuftane or mylar skin is optional. Please contact us if you need