BioBased Insulation. Unlike some traditional spray-foam insulation products that are petroleum-based and use HCFCs as blowing agents, BioBased 1701 is a soy-based, 100% water-blown, closed-cell polyurethane insulation. It has earned the Greenguard air quality certification. BioBased 1701 has an R-value of 19 at 3?1/2 inches. 800.803.5189. www.biobased.net.
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