![]() Many professional plumbers prefer the tinning flux over the paste flux. The two types of flux may have similar functions but have significant differences in their characteristics. More importantly, they prevent further oxidation by blocking the entry of air during the wetting process. They are used to help prevent oxidation of metal pipes and fittings by removing impurities that degrade the metal surfaces. Tinning flux and paste flux have many uses in the world of plumbing. Let’s find out the pros and cons of each. Perhaps, you are wondering how one compares over the other. ![]() Tinning flux and paste flux are essential agents that are widely used in soldering. Feed in the desired amount of solder.“This post contains affiliate links, and I will be compensated if you make a purchase after clicking on my links.” Solder will flow toward the source of the heat. Join together and heat the metal surface, not the solder. Not for electronics use or with alumunium or magnesium.īrush or sand clean all metalsurfaces to be joined, using sandclothes steel wool, file or metal brush.Īpply only a very small quantity of flux using an acid brush or cotton swabb. Used extensively by plumbers and tin workers using all solder alloys including 95/5% and all lead free solders. ![]() Works freely on galvanized iron, lead, tinned stell and other metals. If swallowed, give one or two glasses of water or milk and call physician.Ĭontinuous industrial use in small unventilated areas may result in sufficient inhalation of solder and flux fumes to case lung damage and irritation of the respiratory tract.Ī quick yet non-aggresive paste flux which does not freeze or decompose. In case of eye contact, flush freely with water. Store in plastic containers away from heat.Įye contact may cause irritation and injury. Avoid contact with skin, eyes, and clothing. Adequate ventilation is recommended to remove flux fumes along with fumes and vapors from the molten solder and heated parts. This flux contains Zinc Chloride 3.5%, Organic COmpound 40%, Anorganic Acid remainder. ![]() NCF 03 contains inorganic acid, all of which are hazardous. The residues are water soluble and must be cleaned throughly with warm water. Air drying or moderate preheating will reduce or climate spattering. Soldering should be carried out as soon as possible after flux application. NCF 03 may be applied by brushing, swabbing, or dipping. Used in air conditioning, automotive, heat exchangers and man y other industrial soldering applications. The end point is a rust color.įor total halogen, volume titrate multiply by 5. Tritate with 0,1N Silver Ammonium Thiocyanate. To a 1 ml sample of flux add 99 ml of distillated water in an erlenmeyer flask, add 15 ml of dilute nitric acid and 25 ml of 0,1N Silver Nitrate, add 10 drops of Ferric Ammonium Sulfate. may be used with wide range of solder alloys.Ĥ.control standards by means of easy analytical procedures.Īnalytical methods for halogen content test. Used in air conditioning, autimotive, heat exchangers refigeration and many other industrial soldering applications.ġ. Temperatures as low 235☌ (455☏) may be used in some situations and this results in improved soldering and less wastage through drossing.ĭwell time on the wave should be 1.5-2.5 seconds.Ĭonveyor speed for dual wave systems should be at least 4ft/mm. The solder bath temperature can generally be reduced compared with processes using conventional fluxes. The recommended maximum solder bath temperature is 260☌ (500☏). All flux can be used with all standard solder alloys. Very slow speeds through the solder wave may produce dull solder joints. At lower speeds, this contact length should be reduced. At a speed of 5 ft/mm, a contact length of 1,5-2 between the wave and the PCB is recommended. This will allow the use of faster conveyor speeds and improve soldering. ![]() It is advantageous to fit a topside canopy over the preheaters to produce more effective drying and activation. ![]()
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