PC-70 Copper Red ^6Copper Red is an oxblood red that gives the same results in oxidation as a traditional reduction copper glaze. Copper Red breaks clear on edges or where thin. Apply 3 coats for best results, do not thin glaze. WARNING: This product can expose you to chemicals including Lithium carbonate, which are known to the State of California to cause birth defects or other reproductive harm. For more information go to www. P65Warnings. ca. gov.