Sponge Sanding Pad manufacturers Our SP503 wet dry sanding sponge pads can be used for both wet and dry sanding, you can wash the dust and reuse it many times. Wet sanding sponge pads can help you clean the drywall dust and make the dry wall more smooth. Soft sponge backing are highly flexible and convenient, makes the foam abrasive release dust easily. During sanding operation, there's less...