Branson EC Electronic Cleaner Concentrate is a biodegradable, phosphate and caustic free alkaline cleaner formulated for heavy-duty industrial use. EC Concentrate solution is formulated to remove oils, resins, rosins, and other typical soils from hard surfaces normally encountered in the electronic, plating and other related industries. Applications include: cleaning of infrared detectors, electrical contacts and leads, ceramic insulators, and other electronic components during manufacturing or assembly. Whether cleaning through-hole or surface mount boards, Branson EC does the job effectively and ergonomically. Branson EC is mixed with water in a concentration of 2 to 5% by volume and can be used at temperatures ranging from 130 to 160 °F (55 to 72 °C). Optimum temperature is 140 °F (60 °C).