BioBased 502 and BioBased 1701s are made by incorporating Agrol polyol, a 96% soybean-based polyol. 502, a second-generation open-cell, water-blown spray-foam insulation, has 12% bio-content, offers an R-value of 13 at 3 1/2 inches, and is BRE-certified. A higher density, water-blown, closed-cell, 1.7-pound foam, 1701 serves as an air barrier and a Class II vapor retarder at 2 1/2 inches with an R-value of 19 at 3 1/2 inches; it has 16% bio-content and is certified to Greenguard Children & Schools. Both products are Class I fire-rated. 800.803.5189.