Problem-B-Gone Half-Gallon (Qt of ea part)A Two Part, Fast Acting Stain Erasing System. Problem B Gone is a TWO PART stain removal system designed to remove extremely difficult spots and stains. When used according to directions, it is very effective on organic AND inorganic stains such as those caused by coffee, tea, mustard, wine, vomit, urine, juice, RED children's drinks, cough syrup, etc. Problem B Gone will ship via UPS ground only. No shipments by AIR are allowed. Part One SDS here