R&F Encaustic Cake - Raw Umber 40ml R&F Handmade Paints Inc. from $10.72 $13.40 Qty. Add to Cart SKU: RF1014 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. A cool, very slightly greenish umber. Makes unique grey tints. Semi-Opaque - Pigment: Natural Inorganic PBr 7 Tweet