ICYNENE - LD-R-50 Spray Foam Insulation http://www.icynene.com/homeowner/

Icynene's next generation of high performance product, ICYNENE LD-R-50®, is a renewable based,0.5 lb., spray foam insulation and air barrier material. ICYNENE LD-R-50 exceeds the renewable content specification set by the USDA BioPreferredSM program and ICC-SAVE. Using high-yield castor oil material, ICYNENE LD-R-50 reduces the need for petroleum-based polyol. Castor oil is a natural ingredient that is safe enough for use in personal care products such as lip balm.