Soundlight is very light weight, making it especially useful for use on boats, aircraft, and other situations where light weight is required.Soundlight is a sound absorptive foam with an aluminised polyester facing, and a layer of bituminous impregnated felt. It has been designed so that the outer covering is impervious to water and oil, and cleans with a wipe. It is light, flexible and easy to use, and can be bonded or moulded into position.