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Rosin  •  Water Soluble  •  No-Clean  •  No-Clean VOC-Free

ROSIN FLUXES
SIMFLUX 404
DescriptionSIMFLUX 404 is a foaming rosin flux formulated as an RMA type but still with excellent fluxing strength. Easier to clean because of the lower rosin content.
UsesUse on circuit boards that are generally easier to solder or that have been pre-cleaned. Use SIMTHIN 508 for accurate flux composition adjustment.
SIMFLUX 407
DescriptionSIMFLUX 407 is a highly active rosin flux that has been designed for wave soldering, brush, dip or spray. Its residuals are not conductive and generally do not require removal.
UsesUse to obtain excellent, high integrity solder joints where other fluxes with lower activity fail. Use SIMTHIN 508 for accurate flux composition adjustment.
SIMFLUX 409
DescriptionSIMFLUX 409 is a no-clean, highly active but tacky rosin flux with excellent wetting ability. A clear residue remains after soldering.
UsesUse on nickel surfaces as well as heavily oxidized copper where a clear residue is tolerated. Use SIMTHIN 500 for accurate flux composition adjustment.
SIMFLUX 409-15
DescriptionSIMFLUX 409-15 is a mildly activated rosin flux. This flux has been designed to have a somewhat higher fluxability than most RMA fluxes. The formulation works well in automated, drag or wave soldering; it is formulated as well for foam fluxing.
UsesUse for both single or double sided circuit assemblies. Excellent for surface-mount wave soldering. Use SIMTHIN 520 for accurate flux composition adjustment.
SIMFLUX 410
DescriptionSIMFLUX 410 is a Type RMA flux. It is used in soldering difficult assemblies where an RMA flux is specified. It has high thermal stability and can be applied by foam or dip process.
UsesGenerally used for multi-layered boards. Use SIMTHIN 500 for accurate flux composition adjustment.
SIMFLUX 410-25
DescriptionSIMFLUX 410-25 is identical to SIMFLUX 410 except for a lower rosin content which imparts a lower activity level and fewer residues.
UsesUse for wave soldering single layered boards. Use SIMTHIN 500 for accurate flux composition adjustment.
SIMFLUX 410-18
DescriptionSIMFLUX 410-18 has a low rosin content and low activity. It is, however, active enough to create excellent solder joints on non-complex circuit boards.
UsesUse on easy to solder boards. Use SIMTHIN 500 for accurate flux composition adjustment.
SIMFLUX 412
DescriptionSIMFLUX 412 is a high grade foaming activated rosin flux designed for dip, foam, or wave processing. It can be used in high speed automatic soldering of printed circuit boards. Any residues are non-conductive and do not require cleaning.
UsesUse for printed circuit boards in foam wave or spray process. Use SIMTHIN 515 for accurate flux composition adjustment.
SIMFLUX 414
DescriptionSIMFLUX 414 is a rosin flux generally applied by a foaming process and formulated to achieve optimum fluxing of printed circuit boards in automated soldering systems.
UsesDesigned to eliminate icicling and bridging on boards that are difficult to solder. Use SIMTHIN 508 for accurate flux composition adjustment.
WATER SOLUBLE FLUXES
SIMFLUX 425
DescriptionSIMFLUX 425 is a high activity organic acid (OA) foaming flux compatible with all soldering masks, leaves no white residue, and is ideal for high volume operation.
UsesUse for difficult to solder surfaces where rosin and less active OA fluxes cannot be used. Use SIMTHIN 500 for accurate flux composition adjustment.
SIMFLUX 427
DescriptionSIMFLUX 427 is an organic, water soluble flux. It is non-acid with a neutral pH. This flux was designed for foam application, but can be used in wave soldering lines.
UsesUse when exceptional cleanliness is needed by water cleaning systems. Best applied through foam fluxing techniques. Use SIMTHIN 502 for accurate flux composition adjustment.
SIMFLUX 432
DescriptionSIMFLUX 432 is a low solids, organic flux that offers a high degree of aggressiveness. It minimizes icicling and bridging and produces highly reliable, shiny solder joints. Excellent clean-up in plain water systems.
UsesUse in spray, dip, or foaming systems. Works well on surface mount boards. Use SIMTHIN 502 for accurate flux composition adjustment.
SIMFLUX 434
DescriptionSIMFLUX 434 has been scientifically designed as a relatively high activity, organic flux suitable for automated soldering of circuit board assemblies. Exhibits excellent cleaning with water systems.
UsesShould be considered where an aggressive flux with low halides and low ionic content is indicated. Use SIMTHIN 502 for accurate flux composition adjustment.
SIMFLUX 444
DescriptionSIMFLUX 444 is a flux formulated for excellent solderability on defective-free assemblies in wave soldering foaming applications. The fine foam promotes fast wetting and therefore affords good coverage at high production speeds. The residuals can be washed from the assembly with water to extremely low levels of ionic contamination. The formulation of this flux makes the cleaning water effluent totally biodegradable.
Uses Use this flux for foam wave soldering employing water cleaning where excellent solderability is required and where a wide window process is desirable.
NO-CLEAN FLUXES
SIMFLUX 446
DescriptionSIMFLUX 446 is an efficient halide-free and rosin-free, low solids, no-clean flux. It is formulated for foam wave solder applications. The solderability and cleanliness of SIMFLUX 446 along with excellent foaming characteristics and heat stability provide a moderately low solids flux adaptable to a wide variety of board thickness, styles and size.
UsesExcellent for copper and difficult to solder metals including Alloy 42, Alloy 51 and nickel alloys. SIMFLUX 446 may be applied in either foam or spray systems and solders both single and double sided boards.
SIMFLUX 452
DescriptionSIMFLUX 452 is scientifically designed as a halogen-free, non-corrosive, no-clean liquid flux. When profiled correctly, solder balls are eliminated and bright solder joints with integral strength are produced.
UsesEspecially efficient in wave soldering surface mount circuit and conventional boards. Use SIMTHIN 500 for accurate flux composition adjustment.
SIMFLUX 455
DescriptionSIMFLUX 455 is an extremely efficient halogen-free organic flux. A uniform stable head of small bubbles is provided and boards should be clean and dry after passing through the wave process.
UsesDesigned for wave soldering in critical production circumstances. Use SIMTHIN 505 for accurate flux composition adjustment.
SIMFLUX 464
DescriptionSIMFLUX 464 is a halogen-free, no-clean flux designed for relatively clean circuit boards. Surface tension has been controlled to provide small bubbles for a stable foam head.
Uses Use in your no-clean flux program for surface mount circuit boards. Controlled surface tension helps provide uniform, small bubbling to minimize micro-solder balls. Use SIMTHIN 502 for accurate flux composition adjustment.
NO-CLEAN VOC-FREE FLUXES
SIMFLUX 458
DescriptionSIMFLUX 458 is water based, no-clean VOC-free, organic flux used in wave soldering applications where thinners and solvents are not desired. It is formulated for wave soldering but the flux can be applied by dip or spray. SIMFLUX 458 has excellent soldering properties, leaving bright and shiny solder joints.
UsesIt is an extremely effective flux when soldering bare copper treated with organic solderability preservative and/or after exposure to thermal excursions through surface mount reflow. Use DI water for accurate flux composition adjustment.
SIMFLUX 459
DescriptionSIMFLUX 459 is a no-clean, VOC-free water based flux that is formulated for foam fluxing, wave soldering production. SIMFLUX 459 produces strong, shiny solder connections.
UsesApply to circuit boards by dip, spray, or wave solder foam. Use DI water for accurate flux composition adjustment.
SIMFLUX 460
DescriptionSIMFLUX 460 is a significant advance in fluxing technology. All ingredients except the DI water are reagent grade fluoride and VOC-free. Visible residues or white haze are not a problem.
UsesDesigned as a dip or spray flux it can also be used in wave soldering at a temperature and linear velocity that will evaporate the water and reduce spattering. Use DI water for accurate flux composition adjustment.
SIMFLUX 465
DescriptionSIMFLUX 465 brings to the electronic assembly industry a truly significant advance in fluxing technology. All ingredients except DI water are reagent grade materials producing a pure fluoride-free, VOC-free, no-clean flux. Visible residues and white haze are not a problem and post cleaning is not necessary.
UsesDesigned as a dip or spray flux. Used where solder balls and bridging are a problem. Use DI water for accurate flux composition adjustment.
SIMFLUX 466
DescriptionSIMFLUX 466 is an excellent no-clean, VOC-free water based flux for wave soldering. It is especially desirable where circuit boards have been pre-treated with an organic solderability preservative.
UsesUse wherever quality soldering is desired and removal of copper oxide and other oxidized coatings are desired. Residue is non-conductive and non-corrosive. Use DI water for accurate flux composition adjustment.