SMART SONIC'S 440-R SMT Detergent is a mild alkaline formulation designed to remove RA, RMA, No Clean and Water Washable (OA) solder pastes from screens, stencils and misprinted PCBs at ambient (low) temperature. 440-R SMT Detergent is also very effective in removing wet SMD adhesives from stencils and misprinted substrates and removing post solder flux residues from pallets, oven radiators and other tooling. It contains no CFCs, VOCs, terpenes, alcohol or other hazardous ingredients and performs best in ultrasonic cleaning equipment. 440-R SMT Detergent is a Certified Technology of the California Environmental Protection Agency (1999) and verified by the U.S. Environmental Protection Agency's Environmental Technology Verification (ETV) Program as part of the Smart Sonic Stencil Cleaning Process. It is also certified as a "Clean Air Chemistry" by the South Coast Air Quality Management District's (AQMD) CAS Program (1997). Pass China standard GB38508-2020 limits for VOC content!