Technical Data Sheet Multicore Cored Solder Wire Flux 309 April 2004 ROSIN BASED CORED SOLDER WIRE FLUX SPECIAL PROPERTIES Properties of Multicore 309 solid flux for cored wires: Surface Insulation Resistance: Multicore 309 flux passes Rosin based the J-STD-004 SIR test and other elements of J-STD-004 test protocols associated with the flux classification ROM1. Fast soldering Electromigration Test: Multicore 309 passes the Bellcore Pale residues GR-78-CORE Electromigration test. Solders difficult surfaces Good spread on nickel, stainless steel, RECOMMENDED OPERATING CONDITIONS chromel,monel, constantin, etc. Soldering iron: Good results should be obtained using a Heat stable low fuming range of tip temperatures. However, the optimum tip Mild odour temperature and heat capacity required for a hand soldering process is a function of both soldering iron design and the PRODUCT RANGE nature of the task and care should be exercised to avoid unnecessarily high tip temperatures for excessive times. A Multicore 309 cored wires are manufactured with a range of high tip temperature will increase any tendency to flux spitting flux contents. Although users will normally be using products and it may produce some residue darkening. with a nominal flux content of 3%. Multicore 309 cored wires are available in a variety of alloys The soldering iron tip should be properly tinned and this may conforming to J-STD-006 and EN 29453 or alloys conforming be achieved using Multicore cored wire. Severely to similar national or international standards. For details refer contaminated soldering iron tips should first be cleaned and to document Properties of Alloys used in Cored Solder Wires pre-tinned using Multicore Tip Tinner/Cleaner TTC1, then . A wide range of wire diameters is available. wiped on a clean, damp sponge before re-tinning with Alternative flux contents and alloys may be manufactured to Multicore cored wire. special order. Soldering process: Multicore cored wires contain a careful TECHNICAL SPECIFICATION balance of resins and activators to provide clear residues, A full description of test methods and detailed test results are maximum activity and high residue reliability, without cleaning available on request. in most situations. To achieve the best results from Multicore solder wires, recommended working practices for hand Alloys: The alloys used for Multicore flux cored solder wires soldering should be observed as follows: conform to the purity requirements of the common national Apply the soldering iron tip to the work surface, ensuring and international standards. A wide range of wire diameters is that it simultaneously contacts the base material and the available manufactured to close dimensional tolerances. For component termination to heat both surfaces adequately. details refer to document Properties of Alloys used in Cored This process should only take a fraction of a second. Solder Wires . Apply Multicore flux cored solder wire to a part of the joint Flux: Multicore 309 solid flux is based on a blend of novel surface away from the soldering iron and allow to flow activators and resins. It has a mild characteristic odour and sufficiently to form a sound joint fillet this should be leaves a clear pale residue. virtually instantaneous. Do not apply excessive solder or heat to the joint as this may result in dull, gritty fillets and TYPICAL FLUX PROPERTIES excessive or darkened flux residues. Test 309 Acid value 200mg KOH/g Halide content <1.0% EN 29451-1 Classification 1.1.2 JSTD Classification ROM1 NOT FOR PRODUCT SPECIFICATIONS THE TECHNICAL INFORMATION CONTAINED HEREIN ARE INTENDED AS REFERENCE ONLY: PLEASE CONTACT HENKEL TECHNOLOGIES FOR ASSISTANCE AND RECOMMENDATIONS ON SPECIFICATIONS FOR THIS HENKEL LOCTITE ADHESIVES LTD. , KELSEY HOUSE, WOODLANE END. HEMEL HEMPSTEAD, HERTFORDSHIRE HP2 4RQ, UK, TEL. +44 1442 233 233, FAX +44 1442 269 554 Note Remove solder wire from the work piece and then remove the The data contained herein are furnished for information only iron tip. The total process will be very rapid, depending upon thermal mass, and are believed to be reliable. We cannot assume tip temperature and configuration and the solderability of the surfaces responsibility for the results obtained by others over whose to be joined. methods we have no control. It is the user s responsibility to determine suitability for the user s purpose of any production Multicore flux cored solder wires provide fast soldering on copper and methods mentioned herein and to adopt such precautions as brass surfaces as well as solder coated materials. Activity of the may be advisable for the protection of property and of persons halide activated versions on nickel is also good depending on the against any hazards that may be involved in the handling and state of oxidation of the nickel finish. The good thermal stability of use thereof. In light of the foregoing, Henkel Corporation Multicore fluxes means they are also well suited to soldering specifically disclaims all warranties expressed or implied, applications requiring high melting temperature alloys. including warranties of merchantability or fitness for a Cleaning: Multicore 309 flux cored solder wires have been particular purpose, arising from sale or use of Henkel formulated to leave pale flux residues and to resist spilling and Corporations products. Henkel Corporation specifically fuming. disclaims any liability for consequential or incidental Cleaning will not be required in most situations but if necessary this is damages of any kind, including lost profits. The best achieved using Multicore MCF800 Cleaner (see separate discussion herein of various processes or compositions is not technical data sheet). Other proprietary solvent or semi-aqueous to be interpreted as representation that they are free from processes may be suitable. Saponification may be viable but domination of patents owned by others or as a license under customers must ensure that the desired level of cleanliness can be achieved by their chosen system. any Henkel Corporation patents that may cover such processes or compositions. We recommend that each prospective user test his proposed application before repetitive HEALTH AND SAFETY use, using this data as a guide. This product may be covered Warning: The following information is for guidance only and by one or more United States or foreign patents or patent users must refer to the Material Safety Data Sheet relevant to applications. Multicore 309 before use. Health Hazards and Precautions: Inhalation of the flux fumes given off during soldering should be avoided. The fumes are irritating to the throat and respiratory system. Prolonged or repeated exposure to rosin or modified rosin based flux fumes may lead to the development of respiratory sensitisation and occupational asthma. Multicore solder wires must always be used with suitable fume extraction equipment to remove fumes from the breathing zone of operators and the general work environment. Solder alloys containing lead give off negligible fume at normal soldering temperatures up to 500C. Normal handling of lead alloy wires will not cause lead to be absorbed through the skin. The most likely route of entry is through ingestion but this will not be significant if a good standard of personal hygiene is maintained. Eating, drinking and smoking should not be permitted in the working area. Hands should be washed with soap and warm water after handling solder wire. Waste disposal: Wherever possible, waste solder wire should be recycled for recovery of metal. Otherwise it should be disposed of according to local or national regulations. NOT FOR PRODUCT SPECIFICATIONS THE TECHNICAL INFORMATION CONTAINED HEREIN ARE INTENDED AS REFERENCE ONLY: PLEASE CONTACT HENKEL TECHNOLOGIES FOR ASSISTANCE AND RECOMMENDATIONS ON SPECIFICATIONS FOR THIS HENKEL LOCTITE ADHESIVES LTD. , KELSEY HOUSE, WOODLANE END. HEMEL HEMPSTEAD, HERTFORDSHIRE HP2 4RQ, UK, TEL. +44 1442 233 233, FAX +44 1442 269 554 All trademarks, except where noted, are the property of Henkel Corp. U.S.A