Daymark washable sticker Sunday - discard on Tuesday 500 pieces on a roll HACCP is a labelling solution for marking products that are prepared on Sunday and must be discarded by Tuesday at the latest. The stickers adhere well to plastic and stainless steel, but are easy to clean or remove during washing up. This means that containers can be reused and there is no need to apply a new label each time. The clear day and expiry date support a clear FIFO operation and compliance with HACCP rules.