Pdf thermal decomposition of solder flux activators under. Effective on most metals, excluding aluminum and stainless steel. It is also an excellent choice for copper pipes used in heating, airconditioning, mechanical, and fire sprinkler systems. It is also highly effective in soldering brass, silver, tinnickel, bronze, cadmium, copper, and gold.
Water soluble fluxes, their reliability and their usefulness as a. This paper outlines the composition of water soluble fluxes for the electronics industry and their methods of use when wave soldering and reflowing tinned. A water soluble noncorrosive flux composition comprising butyl cellosolve, a nonionic surface active agent, an activator and an aliphatic alcohol in which the amount of butyl cellosolve is from 10 percent to 40 percent, the amount of surface active agent is from 1 percent to 10 percent, the activator is from 0. However, the issue of water soluble compatibility with leadfree soldering temperatures is something that is clouding the waters. Es1530, es1530cb, es1530c, es1530cbc cas numberother identifiers. The water soluble flux is less corrosive, and selfcleans on the interior of the pipe as water flows through the lines. Try searching around places that sell electronic equipmentsupplies. Solder joints shall be made in accordance with thy methods of astm b 828.
Click on column headers to sort in ascendingdescending order see scrollbar at the bottom. The difference between solventcleaning after noclean or rma process, versus watercleaning after water soluble flux process is the difference between organic and inorganic compounds. A water soluble flux composition includes a vehicle portion of. Using nokorode, when properly done, wont really place that much flux into the system. The flux itself is very fluid and settles as a thin layer, which works well if your working surface is flat. Halogenfree water soluble dipping flux indium corporation will introduce flipchip flux ws688 at semicon west, july 1012, 2012, in san francisco, california, usa. A second family of commercially available soldering fluxes, while designated as being water soluble fluxes, in its various compositions substitutes a synthetic. In my experience, water soluble process is inappropriate for any highimpedance analog circuit. Water soluble generally uses organic acid activators as the flux and every component in the flux system should be soluble in water and therefore clean with only water. Is it acceptable to leave these partial assemblies for 34 days, then put the rest of the parts, and then finally wash them. Solder wire, water soluble solder are available at mouser electronics. They can leave salts behind, which can cause leakage problems in highimpedance circuits. Mixture any concentration shown as a range is to protect confidentiality or is due to batch variation. The composition of fluxes is tailored for the required properties the base metals and.
It is essential that the flux residues be completely and adequately removed. Composition comments all concentrations are in percent by weight unless ingredient is a gas. Unlisted percentages are nonhazardous stabilizers and water. When joining stainless steel to any other metal, an acid flux must be used. Flux 103 is especially adaptable for foam fluxing, however, it can also be applied by dipping or brushing. Soldering is in a state of watersoluble flux contractor. Expert panel responses water soluble fluxes have high percentage of organic activators and are generally corrosive in nature. Oatey 303 h205 water soluble paste flux, liquid, 16 oz, 16. All oatey fluxes and pastes are lead free and come in a variety of formulas, including water soluble and tinning. They are used in both extractive metallurgy and metal joining. Water soluble flux rosin flux ghz digital data rates mhz digital data rates flux flux is used to remove surface oxides from soldered. The key is proper application, and believe it or not, it is so thin, that you have to hold a fluxed pipe.
A water soluble flux composition has been prepared for treating metal surfaces, such as printed circuit boards and the like. One of the more common fluxes is watersoluble organic acid flux. Qualitek 737n water soluble liquid flux product description. Flux, flux remover soldering, desoldering, rework products. A water soluble flux composition includes a vehicle portion of polyoxyethylenepolyoxypropylene block copolymers and their adducts of trimethylolpropane along with an activator portion of tetrakis.
Details of the supplier of the safety data sheet manufacturersupplier. If you would like to prevent our website from using cookies or remove existing ones, you will need to adjust the cookies settings in your browser. Does not work well for chip removal scenarios when the board is mounted in a nonhorizontal vise, the flux will simply run off the board. There are also many flux removers available online made for different flux types. Composition of flux free patterns for stained glass. Water soluble flux has an extremely low frying point, and once fried, your joint is toast and will most probably leak. It is best to always use the same classification and family flux when building a board.
Common weak acids are used in organic acid flux, including citric, lactic, and stearic acids. Using water soluble flux to touch up a board that has been soldered with no clean solder paste and or flux is not good practice. Oatey 303 h205 water soluble paste flux, liquid, 16 oz. Chemical composition, sources, and deposition fluxes of water. The 837p flux is formulated to be effective over a broad preheat range and may be used for both leaded and leadfree applications. We are assembling circuit boards using a water soluble flux, but have run out of some parts. Watersoluble solder paste flux used on copper piping without discoloration, this product is compatible with common plumbing solder alloys and effective on most metals except aluminum and stainless steel. Everflux water soluble flux paste 250ml by everflux. Orxx flux may be present in liquid form, in solder paste, or in cored wire solder. Qualitek water soluble paste flux pf700 product description. The former do not form ionic salts, while the latter do. The composition comprises butyl cellosolve, a nonionic surface active agent, an activator and an aliphatic alcohol.
The no clean flux will leave a rosin or resinbased residue on the board. Chemical composition, sources, and deposition fluxes of watersoluble inorganic ions obtained from precipitation chemistry measurements collected at an urban. A versatile, active, organic, water soluble flux specially formulated with carefully blended solvent system and activating agents, it produces. The flux is employed for tinlead soldering of a range of metals and alloys including copper, nickel and nickeliron. By clicking the accept and close button you consent to the use of cookies. The water soluble flux has a narrower temperature range when heating, but it works with all the solders. The composition of each type of flux is a bit different, but the basic ingredients are a mixture of sarcosine and tartronic or tartaric acid dissolved in water and an aliphatic alcohol. The use of any other flux compositions and forms other than those listed in. Kester 1429 vocfree organic water soluble flux is a selfneutralizing type of flux formulation based on research work originally performed at the battelle memorial institute.
Flux composition cleaning agent match heat exposure reuse recovery time temperature concentration static cleaning rate fluid management energy consumption dynamic. So, those issues are pushing us towards the use of chemistry, which may reopen the issue of using a rosinbased flux. Solids the percentage of solid material in the flux. Book depository books with free delivery worldwide. This composition also is capable of producing a heavy foam flux composition which has excellent stability. He showed samples of what these fluxes will do to copper tube over time. Worthington water soluble soldering flux cph msds na. Wave solder flux 1085 is a water soluble fl ux specifi cally developed for soldering surfacemount, mixedtechnology and throughhole electronic assemblies. H at room temperature and becomes activated at soldering temperature. The unique chemistry of 1429 flux provides for selfneutralization through a timetemperature relationship which results in a residue which is neutral and noncorrosive when properly heated. Some of the earliest known fluxes were carbonate of soda, potash, charcoal, coke, borax, lime, lead sulfide and certain minerals containing phosphorus. I think, from a soldering standpoint, youll prefer to use a water soluble flux because of the potential of more, stronger acids.
Quality assurance for water soluble flux a move toward ecofriendly industrial systems worldwide has resulted in an increased use of water soluble and noclean fluxes in the commercial sector. Worthington water soluble lead free flux, 16 oz 1uyj9. Water soluble flux went to a seminar recently where a rep from the copper developement association was explaining why we should use water soluble flux. Since youre going to clean, if youre using chemistry anyway, maybe its more desirable. We do not use cookies for the processing, collection, or storage of personal data under any circumstances. Watersoluble organic fluxes tend to contain vehicles based on highboiling polyols. Oatey flux and solder pastes facilitate the soldering process, removing dirt, surface oxidation and other impurities from the solder joint. Pdf noclean solder flux chemistry and temperature effects on. Most pcb manufacturers use water soluble flux and rinse with warm di water for cleaning. This trend is nearly twenty years old and is beginning to affect hardware supplied to nasa for its missions.
When heating the board to repair it with a water soluble flux you will soften the no clean residue allow the organic water soluble flux to be. Jul 17, 1973 a water soluble flux composition has been prepared for treating metal surfaces, such as printed circuit boards and the like. Looking for worthington water soluble lead free flux, 16 oz 1uyj9. In metallurgy, a flux derived from latin fluxus meaning flow is a chemical cleaning agent, flowing agent, or purifying agent. He explained that astm b8 required that grease based fluxes are no longer legal like lead based solder. Yes, flux can be conductive and affect your fine pitched component performance. The organic activating system in 837p has a neutral. Nsf 61 certified safe for potable water applications.
Fastenal uses cookies to improve website user experience. Nonwatersoluble definition of nonwatersoluble by the. None of the products in this material are listed in ntp, iarc, or osha as carcinogens. Flux selector this website uses cookies to give you the best browsing experience possible and to better understand how you use the alpha assembly site. Can be used on copper piping without discoloration. We once had to scrap a whole run of boards that had been processed with water soluble flux, because we simply could not get all the salts off. The forney 61467 water soluble paste flux w brush, formulated specifically for use in plumbing applications where copper and copperalloy tubes are being soldered. Plumbing, automotive and industrial applications, among others, typically use an acidbased flux which provides cleaning of the joint. Water soluble solder paste flux used on copper piping without discoloration, this product is compatible with common plumbing solder alloys and effective on most metals except aluminum and stainless steel. The 837p water soluble flux pen is a neutral, waterremovable soldering flux. Oatey 303 h205 water soluble paste flux, liquid, 16 oz, 16ounce by oatey. Occupational exposure limits, if available, are listed in section 8. The weak organic acids are combined with solvents like isopropyl alcohol and water.
This is a zinc chloride based water soluble flux formulated for general purpose soldering. Water washable flux may contain rosin and in addition a surfactant to remove the flux residue after reflow. Product data sheet library technical documents indium. Water soluble flux is effective via a combination of weak organic acids and halides. Flux vapors tend to have low autoignition temperature and present a risk of a flash fire when the flux comes in contact with a hot surface. Fluxtype flux composition partial designator solvent solids content most commonly designator market. Emergency telephone numbers qualitek international, inc.
When heating the board to repair it with a water soluble flux you will soften the no clean residue allow the organic water soluble flux to be absorbed by the no clean flux. Fluxes with low solids, sometimes as little as 12%, are called low solids flux, lowresidue flux, or no clean flux. Fluxes for soft solders for industrial usenonelectronics. Flipchip flux ws688 is a halogenfree water soluble dipping flux suitable for use with both eutectic, tin, and tin browse fluxes datasheets for indium corporation. The unique chemistry of 1429 flux provides for selfneutralization through a timetemperature relationship which results in a residue which is neutral and noncorrosive. In metallurgy, a flux is a chemical cleaning agent, flowing agent, or purifying agent. Lead free shall mean a chemical composition equal to or less than 0. Since lowsolidsnoclean fluxes is the more common flux used in selective soldering, we have correlated them to the ipc designators in the below table.