BioBased Technologies offers its 501w, water-blown, open-cell, 5lb. foam that expands to 100 times its size. It has an R-value of 13 at 3 1/2 in. and is ICC and Class 1 fire rated.
BioBased Insulation's 501 soy-based foam insulation is a water-blown, open-cell product that stops air filtration. The product provides R-13 at 3 1/2 inches and is low VOC.