Soft sand SR104 non-skid, white, quart. SoftSand particles are rubber-based granules that were specifically designed for coatings applications. These colorful particles will help provide a comfortable, skid resistant surface, and will work in most urethane, epoxy, and acrylic coatings. SoftSand rubber particles can be blended together, and used with paints to provide truly unique, functional and decorative coatings.