No-Clean Fluxes and contaminants with high salts are more difficult to clean than common oils. They require a formulated cleaner with aggressive solvancy, but may also require alcohols.
Vapor degreasers with spray under emersion or ultrasonics may also be necessary in order to reach the desired cleanliness specification. MicroCare offers several new formulations along with tried-and-true solvents that are ideal for removing no-clean and high salt contaminants.
If you were using AK-225, you should evaluate:
If you were using AK-225AES, AK-225AMS or AK-225T, your replacement choices should include:
If you were using AK-225ATE, AK-225ATMS or AK-225TM, you will want to sample and evaluate one or more of these fluids: