EnviroGuard 100% aqueous stencil cleaner is said to clean all types of solder paste with a 100% closed-loop process. Matched properties of 440-R SMT Detergent to a specifically designed filtration/UV system that facilitates zero VOCs of wash and rinse solutions. Is “zero discharge” with no venting requirements. All water is reused. Reportedly eliminates the need for a wastewater evaporator.
 
Smart Sonic Stencil Cleaning Systems, www.SmartSonic.com