New stronger formula BCR for your toughest cleaning jobs. BCR Plus works effectively on gold, platinum, silver, steel, stainless steel, zinc, magnesium, brass, copper and aluminum. Concentrated: use between 3% and 20% by volume depending on extent of compound buildup. Exceptional rinse-ability eliminates hand wiping, streaking and discoloration. Comes in a 5-gallon pail. Please Note: BCR and BCR Plus is now classified as Hazardous (effective November 2019).
