"PRIMAL™ S 920 emulsion polymer contains up to about 36% bio-based carbon content* sourced from plants, replacing material sourced from petroleum. This offers a more sustainable option by reducing the product carbon footprint in caulk and sealant applications. *BCC – % Biobased Carbon Content ASTM D6866-21 Method B (AMS), tested by independent laboratories specialized in C14 testing. Ratios may be subject to availability of sourced bio-based materials."