A recent social-media survey by our company revealed a strong desire (by 65 % of respondents) to move away from petroleumbased chemical feedstocks and towards sustainability. In this paper, we evaluate bio-based hydrocarbon moieties of some traditional organo-silicone coatings additives. This alternative supply chain provides silicone polyethylene oxide-modified organo-silicones, one of the most frequently used types of organo-silicone ingredients in coatings additives. These bio-silicone additives are synthesised from corn- or sugarderived ethanol. We compare seven of them with commercial, conventional petroleum-based products. Comparative data for the two coatings systems show that the origin of the organic moiety of ...