Krud Kutter Caulk Remover is a specially formulated remover that aids in the removal of caulks and sealants from a variety of surfaces. Krud Kutter Caulk Remover works on most caulks and sealants including silicone, polyurethane and acrylic caulks and polyurethane foam sealant. The biodegradable gel formula clings and stays wet longer to remove even the toughest sealants, indoors or outdoors. Ideal for sinks, countertops, showers and tubs, baseboards, exterior or interior trim.