Dec 15, 2005 
Stencil cleaning has been identified as the most hazardous process associated with SMT assembly; heavy metal exposure, noxious / flammable chemistries and vapors all pose hazards to the operator. Smart Sonic�s 440-R SMT Detergent eliminates these hazards with a mildly alkaline non-hazardous and environmentally safe aqueous detergent.
Smart Sonic formulated 440-R SMT Detergent specifically to clean all types of solder paste from fine-pitch stencils while eliminating the health, safety and environmental hazards of VOC solvents such as alcohol and terpenes and hot corrosive saponifier chemistries commonly used in stencil-cleaning applications.
440-R SMT Detergent is the only cleaning chemistry verified for specific parameters of environmental safety, user safety and cleaning efficiency by the U.S. Environmental Protection Agency�s Environmental Technology Verification Program yet it is guaranteed to clean any type of solder paste from any fine-pitch stencil which is important if the assembler needs to use multiple solder pastes or plans to change solder pastes in the future as 440-R SMT Detergent will support the change and not require a change of chemistry, equipment or waste management protocol.
440-R SMT Detergent effectively cleans all types of solder paste without heat. Stencils are heat-sensitive and most stencil manufacturers recommend their stencils not be exposed to temperatures higher than 43� C (110� F) as the glue that bonds the screen to the frame and metal-etched foil is heat-cured. Hot wash water or hot drying air can breakdown the glue causing detachment, distortion or misregistration of the etched image due to expansion and contraction. 440-R SMT Detergent eliminates these concerns and conserves energy.
Because 440-R SMT Detergent contains no hazardous ingredients or VOCs, the wastewater qualifies for routine liquid evaporation in standard evaporation equipment. The non-hazardous liquid can be evaporated to atmosphere reducing everything back to the original solid solder paste for recycling. When using an evaporator, there�s absolutely no liquid hazardous waste for disposal.
Most applications require only a 10% solution of 440-R SMT Detergent with water and may be used in spray or ultrasonic equipment and manual cleaning applications. 440-R SMT Detergent also cleans post solder flux residues from pallets & oven radiators and safely removes wet SMD adhesives from stencils and misprinted PCBs. Smart Sonic�s 440-R SMT Detergent is distributed worldwide by SMT Detergent Corp. from facilities in California and the U.K.
Additional information about 440-R SMT detergent may be found at: http://www.SMTdetergent.com
