www.multicore.com COLOPHONY-FREE CORED SOLDER WIRES 105 Multicore Ecosol 105 colophony-free solid flux has The tip of the soldering iron should be properly tinned been specially formulated to address the concerns of and this may be achieved with Multicore Ecosol 105 cored PCB assemblers and allied industries who wish to use wire. However, this does depend on the initial condition of colophony or rosin-free cored wires. the tip. If it is in poor condition, it may be more effective to pre-tin the tip with Multicore Tip Tinner/Cleaner TTC1. Used Colophony-free, fully synthetic - no rosin or correctly, this cleaner will leave the iron tip well tinned and modified rosin free from any harmful residues which might be transferred to the work piece. Where tip preparation is required use User friendly performance the following procedure: High activity - no dewetting (a) With the soldering iron at operating temperature, tin the new tip by gently rubbing the working surface over TTC1. Fast and sustained soldering on copper and brass (b) Wipe the tip on a clean, damp sponge to remove any Non-corrosive formulation excess solder. Distinctive low odour to distinguish from rosin (c) Re-tin the tip of the iron with Multicore Ecosol 105 flux products cored wire. Operationally and aesthetically similar to It is not necessary to re-use Multicore TTC1 on iron tips traditional rosin fluxes once they have been correctly tinned. Soldering process: Multicore Ecosol 105 flux cored wires PRODUCT RANGE contain a carefully selected balance of components designed to provide minimal residues, high activity and good reliability Multicore Ecosol 105 cored wires are available in alloys without cleaning, together with a distinctive low odour that conforming to J-STD- 006 and EN 29453 or alloys conforming distinguishes it from rosin based products. Some adjustment to similar national and international standards. A wide range to operator practices may be required to gain the maximum of wire diameters is available. advantages from the product but the principles of normal Alternative flux contents and alloys may be manufactured hand soldering still apply. The process should be as follows: to special order. (a) Apply the soldering iron tip to the work surface. The iron tip should contact both the base material and the lead at the same time to heat both surfaces properly. RECOMMENDED OPERATING CONDITIONS The excess solder on the iron tip will assist in the heating process by forming a larger contact area Multicore Ecosol 105 has been formulated as a drop in between the base material and the lead. It should take replacement for traditional colophony based cored wires no more than a fraction of a second to heat both and as such the transition to Multicore Ecosol 105 will be surfaces adequately. simple and straight forward. For the benefit of users not (b) At this time the Ecosol 105 flux cored wire should be fully familiar with the necessary techniques, a resum of applied to a part of the joint surface away from the hand soldering is given below. soldering iron and allowed to flow to form the joint Although Multicore Ecosol 105 is a colophony-free solid fillet. This should take about 0.5 second. flux, it has been formulated to be as readily usable as Note: If the solder is applied directly to the soldering conventional rosin based fluxes. Its excellent all round iron tip, the flux may be overheated and its effectiveness performance over a wide range of conditions promotes diminished. It may also lead to charring which will excellent joints without the need for traditional rosins and contaminate the soldering iron tip. their associated shortcoming i.e. sensitisation, odour etc. Do not apply excessive solder to the joint, as this Multicore Ecosol 105 cored wire has been specially will leave excess flux residues on the surface. formulated to have a distinctive low odour that distinguishes (c) Remove solder from work piece and then remove the it from rosin products. heat source (iron tip). Soldering iron: The optimum tip temperature and heat This total process should take from 0.5 to 1.5 seconds per capacity required for a hand soldering process is a function joint, depending upon mass, iron temperature and tip of the design of the iron and the task. However, unnecessarily configuration, along with the solderability of the surfaces. high tip temperatures for excessive times should be avoided Excessive times or temperatures may exhaust the flux and good results can be obtained with a tip temperature of before solder wetting has occurred and may cause increased 340 - 420C (650 - 780F). residue levels.Cleaning: Multicore Ecosol 105 flux cored wires have been formulated to leave a light amber flux residue and to HEALTH AND SAFETY resist spitting. Cleaning will not be required in most situations so the WARNING: The following information is for guidance only product may be used to complement a no clean wave and users must refer to the Material Safety Data Sheets soldering or reflow process or to allow repair to cleaned relevant to specific Multicore Ecosol 105 products before boards without the need for a second cleaning process. use. Should cleaning be required, this is best achieved in Multicore Prozone. Other proprietary solvent or semi-aqueous Fume Hazards and Precautions: Avoid excessive processes may be suitable but cleaning by saponification inhalation of the flux fumes. These are irritating to the or alcohol washing is not recommended. throat and respiratory organs. Suitable fume extraction equipment should be used to extract flux fumes away from operators. TECHNICAL SPECIFICATION Protection and Hygiene: Lead is harmful if absorbed into A full description of test methods and detailed test results the body through the digestive system or skin. Eating, drinking are available on request. and smoking should not be permitted in the working area. Hands should be washed with soap and warm water after Alloys: The alloys used for Multicore flux cored solder handling solder, especially before eating. wires conform to the purity requirements of the common national and international standards. A wide range of wire diameters is available manufactured to close dimensional tolerances. Flux: Multicore Ecosol 105 solid flux is based on a novel formulation philosophy utilising carboxylic acid and halide activators. In use it has a characteristic odour and leaves a small quantity of amber residues. FLUX PROPERTIES TEST Ecosol 105 Acid value 80mg KOH/g Halide content 0.5% Multicore Ecosol 105 has been formulated to conform to those elements of the J-STD- 004 test protocols associated with the following flux classifications: RE M1 (J--STD- 004) The EN 29454 - 1 classification is 1.2.2 Cored Wire: Cored wire is available in a range of standard flux contents dependent upon customer demands. www.multicore.com This data is based on information believed to be reliable and is offered in good faith, but MULTICORE MAKES NO WARRANTIES EITHER EXPRESS OR IMPLIED AS TO ITS ACCURACY AND ASSUMES NO LIABILITIES ARISING OUT OF ITS USE BY OTHERS as conditions and methods of use of the products are beyond MULTICORES control. The prospective user should determine the suitability of the product before using it on a commercial scale. MULTICORE warrants only that the product will conform to its physical descriptions. MULTICORE MAKES NO OTHER WARRANTIES EXPRESS OR IMPLIED AND EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MULTICORE BE RESPONSIBLE FOR SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER THE CLAIM IS IN CONTRACT, NEGLIGENCE OR OTHERWISE. MSL Ref: 704 9/99