Very water resistant, film-forming polymer with tunable aesthetics. Very light, silicone slip. Naturally-derived, oil soluble, film forming polymer based on dimer acid and branched alcohol end groups. CosmoSurf DGSi is anexcellent film-forming polymer that provides up to 80 minutes of water resistance in O/W and W/O emulsions and (alcohol-based) spray products. It includes a silicone group incorporated into the backbone, providing a silicone feel.