General Purpose Spotter All purpose spotter for water-based stains Sapphire Scientific General Purpose Spotter removes a variety of water soluble soils as well as water insoluble particulate matter. It suspends water insoluble soils such as fine sand and dust without generating the foam that so often interferes with rinse extraction. General Purpose Spotter also contains an embrittling polymer that allows efficient vacuuming of the residue.
