Sound Sorber. A lightweight and easily installed method of reducing noise and vibration from engines and machinery.Sound Sorber is a foam/barrier/foam sandwich with an aluminised polyester facing. 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.Safe, strong, and fire retardant, this easy to apply material is extremely effective. Field transmission loss tests have shown that reductions of well over 25dB(A) can be achieved (from inside to outside of engine compartments).