K2r stainstopper Keep your fabrics and upholstery clean and looking new longer with our NEW K2r StainStopper fabric protector. Specifically formulated to repel stains, dirt and oil, StainStopper creates an invisible shield between fabric and lifeÆs spills and accidents. StainStopper is safe for most fabrics* and will not attract dirt or change the look or feel of your fabrics.