SORGENE FOAM ADDITIVE Sorgene Foam Additive May be used in conjunction with Sorgene 5, through a foaming lance to produce a foam. The additive and disinfectant is stable for approximately 20 minutes and allows the operator to easily determine which areas have been treated. The use of the foam additive allows a reduction in the volume of water required to treat the shed. © Sorex 1999. All Rights Reserved. Read Legal Disclaimer