Electronics Forum | Thu Nov 03 08:34:25 EST 2005 | Slaine
Hi We currently use a small amount of Alloy : 43Sn 43Pb 14Bi Flux: RMA-51AC, Metal : 88.5%. We use it for reworking a product and only consume about 100g per year, we are in the middle or ordering in some more paste but the MOQ is 500g. Is it possibl
Electronics Forum | Thu Nov 03 09:20:29 EST 2005 | russ
Unforunately, the only one who can give you that answer is the manufacturer. They are the only ones who know what is in their paste and how it reacts to different situations and conditions.
Electronics Forum | Wed Apr 11 06:56:46 EDT 2001 | brownsj
Most of the component vendors I've dealt with will guarantee the solderability of the terminations for three years if the components are still packaged in a full reel. If the reel is part used we've kept them for 1 year and then used a wetting balanc
Electronics Forum | Wed Apr 11 06:56:20 EDT 2001 | brownsj
Most of the component vendors I've dealt with will guarantee the solderability of the terminations for three years if the components are still packaged in a full reel. If the reel is part used we've kept them for 1 year and then used a wetting balanc
Electronics Forum | Tue Feb 22 17:57:32 EST 2005 | Austinj
Most solder paste has a shelf life of 1 week at room temperature after opened, if resealed at the end of the shift/day. Most shelf lives are 4-6 months at 40F (refridgerated) or 1 month at room temp (unopened/sealed). Recommended stencil life is appr
Electronics Forum | Wed Dec 09 09:47:32 EST 2009 | dyoungquist
I am curious as to why you need to mix.... We use a 500g cartridge with air gun. Our process is remove the cartridge from the fridge, allow it to warm up to room temperature before inserting into air gun, then apply bead of paste to the stencil. N
Electronics Forum | Sun Jan 07 08:46:08 EST 2018 | spoiltforchoice
Your paste should specify a number of times it is OK for various things to happen. The two you might care about are the "Stencil Time"/"Working life", which is how long the paste can be out of the pot on your stencil while you print PCBs. The othe
Electronics Forum | Fri Apr 22 15:59:42 EDT 2005 | Valerie
Besides poor printing using cold solder paste will also cause solder beading.
Electronics Forum | Tue Apr 19 07:37:48 EDT 2005 | mirrindolan
I am looking for all the reasons why operators and stores must let solder paste reach room temperature. I am trying to make it is as easy as possible for everyone to understand. I have compiled all the obvious reasons but I am open to all comments an
Electronics Forum | Fri Apr 29 19:57:53 EDT 2005 | DasonC
Moisture will condensed on your paste if the temperature different. Solder bead will happen. You can see the jar or cartridge wet when you removed your paste from refrigerator.
