ISOLENE® 40-S is a low-molecular-weight liquid polymer derived from synthetic polyisoprene rubber. It offers the performance of natural rubber with the added benefit of a lighter color and none of the natural impurities inherent in natural rubber products. ISOLENE® 40-S is a lower viscosity liquid than the other ISOLENE® liquid rubber products. It is a translucent, honey-colored liquid in bulk form and virtually clear in a thin film.

ISOLENE® 400-S is a low-molecular-weight liquid polymer derived from synthetic polyisoprene rubber. It offers the performance and processing characteristics of natural rubber with the added benefit of a lighter color and none of the natural impurities inherent in natural rubber products. ISOLENE® 400-S is a high-viscosity liquid at room temperature. It is a translucent, honey-colored liquid in bulk form and virtually clear in a thin film.