The thinned transesterified product yields a paint dry-to-touch overnight. Film formation is seen in two days at 20 deg C.
Residual glycerol aids brush flow and some di-glyceride serves as a non-ionic surfactant.
For use as a fuel, the biodiesel must be washed and dried. For paint formulation, I tap off the lower glycerol layer and use the top layer directly with pigment mulling.
A commercial oil pastel (red hue) blended with biodiesel and emulsifying wax . After warming, the mixture is cooled to 20 deg C yielding a smooth, liquid paste , easily applied to card stock with brush.
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