Air-dry primer coatings from dehydrated lesquerella oil

Lesquerella oil (LO), a domestic vegetable oil of hydroxy fatty acid content, was dehydrated (DLO) and the product used to synthesize oil modified polyesters. The polyesters were comparatively evaluated with analogous dehydrated castor oil (DCO) polyesters. Accordingly, polyesters were synthesized from DLO and DCO, and subsequently formulated into air-drying, anti-corrosive primers for evaluation. The DLO and DCO coatings gave comparable pencil hardness, adhesion, and UV resistant properties. However, DLO derived coatings showed reduced drying time, superior flexibility, and corrosion resistance in comparison to a DCO counterpart.