How to dry latex paint Clay cat litter, sawdust, ground soy bean hulls, newspaper pellets, ground corncobs, sand, and commercial paint hardeners…. any absorbent material that is inert and will work as a bulking agent is satisfactory for bulking and drying latex paints. Directions for bulking and drying latex based paints discarding in the trash Open the can and add bulking agent if there is a small amount of paint. Let dry to a solid Leave the lid off of the can. Waste haulers frequently leave paint cans behind if the lids are on the cans. Discard dried paint and can. Alternative method for larger quantities: Line a cardboard box with a plastic bag Pour in some bulking agent to cover bottom Pour the paint in the plastic lined box Add more bulking agent as needed, usually a 2:1 ratio of bulking agent to paint works Let dry to hard and discard Rinse the can and recycle it if it is not excessively covered with dried paint. How to dry latex paint Clay cat litter, sawdust, ground soy bean hulls, newspaper pellets, ground corncobs, sand, and commercial paint hardeners…. any absorbent material that is inert and will work as a bulking agent is satisfactory for bulking and drying latex paints. Directions for bulking and drying latex based paints discarding in the trash Open the can and add bulking agent if there is a small amount of paint. Let dry to a solid Leave the lid off of the can. Waste haulers frequently leave paint cans behind if the lids are on the cans. Discard dried paint and can. Alternative method for larger quantities: Line a cardboard box with a plastic bag Pour in some bulking agent to cover bottom Pour the paint in the plastic lined box Add more bulking agent as needed, usually a 2:1 ratio of bulking agent to paint works Let dry to hard and discard Rinse the can and recycle it if it is not excessively covered with dried paint.