Sutro 870 Polyol SPI Polyols Plasticizers Plasticizers >> Sorbitol/ Glycerol ADHESIVE Industrial Adhesives/Glues SUTRO® Polyol Solution; flexibility enhancer, gloss enhancer, humectant, plasticizer, shelf-life extender, warping/shrinking preventer Sutro® 870 Industrial Non-Crystallizing Polyol Solution Industrial non-crystallizing polyol solution. Used in adhesives and glues. Can be used as humectant, gloss enhancer, plasticizer, flexibility enhancer, shelf-life extender and warping/shrinking preventer. Application : industrial adhesives.