Echo Drop Acoustical Panels (13 x 1" x 2' x 4') are rigid, impact-resistant, sound absorbing, lightweight sheets for indoor or outdoor applications.  Echo Drop panels are Class A fire retardant, resist moisture, bacteria, fungi, and are available in white or charcoal for indoor applications.  For outdoor applications, select the charcoal Echo Drop Acoustical Panels.

Echo Drop Acoustical Panels are made from porous expanded polypropylene or PEPP, for short.  Think of it as a dense foam product that expands to form small beads packed tightly to dissipate sound.