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WashU engineers create plant-based coating to replace forever chemicals

Researchers at Washington University in St. Louis developed a new waterproofing material made from lignin that can replace polyfluoroalkyl substances.

Plant-inspired natural coatings can beat forever chemicals
File photo Plant-inspired natural coatings can beat forever chemicals Photo: Phys.org

New material uses plant waste

The team turned to lignin, which is abundant plant waste material, to create an alternative. They combined this substance with fatty acids to form a viable replacement called SLIP. This process transforms what was previously discarded into a valuable product for manufacturing.

Coating meets safety needs

The new coating provides fire protection and waterproofing similar to current polyfluoroalkyl substances. It addresses the economic burden these chemicals place on human health and the environment. The material remains affordable while offering a sustainable option for modern manufacturing.

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