Biodiesel Materials Compatibility Summary Tables

Neat biodiesel is not compatible with certain elastomers, metals, and plastics that are commonly used with petroleum diesel. Generally (but not always), biodiesel blends of 20% or lower have a much smaller effect on these materials; the very small concentrations of biodiesel in B5 or B2 have no noticeable effect on materials compatibility. If in doubt, contact the manufacturer for more information about the compatibility of specific materials with biodiesel fuels or fatty methyl esters (see Table C-1).

Elastomers

Metals

Certain metals may affect the biodiesel by accelerating its oxidation process and creating fuel insolubles. Lead, tin, brass, bronze, and zinc significantly increase sediment formation in both B100 and B20. Galvanized metal and terne-coated sheet metal are not compatible with biodiesel at any blend level.

UL Standards

Tank Manufacturer Compatibility

Underground Equipment

Aboveground Equipment (Dispensers, Hanging Hardware, etc.)

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