Step 1: Clean surface, removing any dirt or debris.
Step 2: Put on gloves. Cut off desired amount of WaterWeld, replacing unused portion back into tube for future use. Knead WaterWeld with your fingers until it becomes a uniform color and apply along the line of the crack. You can also use WaterWeld to plug any larger holes.
Step 3: Allow WaterWeld to fully dry and cure, about an hour. WaterWeld will cure to white, and will be waterproof upon drying and curing.
Step 4: If desired, WaterWeld can be sanded and then painted to match the color of the sink.
WaterWeld™ Epoxy Putty - 2 oz