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Knowledge Base
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Frequently Asked Questions
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Displaying 1-24 of 24
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Alloy Temperature Chart
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This chart lists the alloys that are available from Kester.
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| Last Modification Date: 11/18/2004 7:30:27 AM |
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2 % Silver
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When a silver alloy is recommended
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| Last Modification Date: 11/24/2003 8:51:29 AM |
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Saponification
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Saponifiers in an aqueous cleaner can be used to remove rosin flux residues.
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| Last Modification Date: 11/24/2003 9:01:19 AM |
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Thinner Calculation
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A calculation that can be used to determine how much thinner needs to be added to the flux to maintain a specified specific gravity.
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| Last Modification Date: 8/7/2006 10:00:03 AM |
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Storage of Flammable Materials
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Most rosin fluxes are flammable materials. This is a general guide to storage of flammable materials.
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| Last Modification Date: 6/29/2007 11:10:33 AM |
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Soldering to Aluminum
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Aluminum is an extrremely difficult metal to solder to.
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| Last Modification Date: 11/24/2003 9:25:45 AM |
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Disposal of chemicals
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What is required for the proper disposal of processing chemicals
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| Last Modification Date: 11/24/2003 9:30:16 AM |
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Dross
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What is dross?
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| Last Modification Date: 11/24/2003 9:36:06 AM |
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Flux Pens
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Flux Dispensing Pens
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| Last Modification Date: 11/24/2003 9:46:16 AM |
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Syringable Paste Needle Size
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Syringable solder paste requires a needle and plunger for application.
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| Last Modification Date: 11/24/2003 1:42:06 PM |
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What Does No Clean Mean?
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There is some apprehension at the description, 'no clean'. What does it mean.
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| Last Modification Date: 4/5/2004 11:46:33 AM |
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Pin Holes
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Pin holes often appear on the surface of solder joints. How are they formed?
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| Last Modification Date: 11/24/2003 10:30:27 AM |
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Rosin Flux Removal
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The question that frequently comes up is, do rosin flux residues need to be removed?
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| Last Modification Date: 4/5/2004 11:44:44 AM |
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Sn60 vs. Sn63
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When is the use of one of these two alloys more appropriate than the other?
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| Last Modification Date: 11/24/2003 11:43:25 AM |
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Flux Test Kit
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The PS-20 and PS-22 test kits are used for flux control of low residue(no clean) fluxes.
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| Last Modification Date: 11/24/2003 10:59:22 AM |
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Gold Colored Solder
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Assemblers are often concerned when they see a gold color on the surface of a solder pot.
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| Last Modification Date: 11/24/2003 11:04:18 AM |
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"44" Flux Residues
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The question is frequently asked are "44" flux residues harmful to an assembly.
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| Last Modification Date: 4/5/2004 11:45:34 AM |
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Tip Temperatures
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What is the recommended soldering iron tip temperature?
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| Last Modification Date: 11/24/2003 11:40:03 AM |
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Tip Maintenance
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Proper soldering iron tip maintenance is important to extend the life if iron tips.
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| Last Modification Date: 11/24/2003 11:42:59 AM |
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White Residue
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Identification and categorization of white residues often found on cleaned circuit assemblies
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| Last Modification Date: 8/17/2007 11:14:08 AM |
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Standard Reflow Profile
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The recommended reflow profile for Kester solder pastes manufactured with standard tin/lead alloys.
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| Last Modification Date: 7/19/2006 11:07:36 AM |
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Green Corrosion?
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Rosin fluxes react with copper (especially on braided cables underneath the insulation) to form a green by-product that is not corrosion.
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| Last Modification Date: 2/1/2005 3:16:58 PM |
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Solder Paste Volume Percents
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What are the volume percents for flux and metals for a typical solder paste.
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| Last Modification Date: 2/1/2005 3:39:30 PM |
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