Electronics Forum: storing solder paste

Re: solder mask

Electronics Forum | Tue Aug 10 16:01:12 EDT 1999 | Earl Moon

| | | | | | I am having cleaning problems when processing PCB's which have | | | | | | TAIYO solder mask on them. After processing, hand soldering and | | | | | | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tid

Re: Peelable solder stop

Electronics Forum | Tue Dec 29 17:42:27 EST 1998 | Dave F

| Can anyone recommend a solder stop that can be applied by our PCB supplier. Our current material form Tamura Kaken is causing problems. | | The material should be capable of withstanding 1 Surface mount IR reflow cycle and 1 wave solder cycle. | W

Re: solder mask

Electronics Forum | Wed Aug 11 09:51:11 EDT 1999 | Brian

| | | Easy goods-in polymerisation check: clean, white, cotton cloth: wrap it round a suitably gloved finger and pour a few drops of methylene chloride (! toxic) onto the end of the finger and rub it onto the bare board for a minute or so. If it come

Re: solder mask

Electronics Forum | Thu Aug 12 05:33:23 EDT 1999 | Brian

| | (snip) | | | | You're quite right. However, anyone who uses MeCl in an aerosol spray needs his head examining. I'll go further: if he continues, he will most CERTAINLY need his head, the rest of his CNS and his liver examining a little later on

Re: solder mask

Electronics Forum | Thu Aug 12 22:23:23 EDT 1999 | Dave F

| | | | (snip) | | | | | | You're quite right. However, anyone who uses MeCl in an aerosol spray needs his head examining. I'll go further: if he continues, he will most CERTAINLY need his head, the rest of his CNS and his liver examining a little

Re: solder mask

Electronics Forum | Fri Aug 13 10:39:25 EDT 1999 | Boca

| | | | | | (snip) | | | | | | | | You're quite right. However, anyone who uses MeCl in an aerosol spray needs his head examining. I'll go further: if he continues, he will most CERTAINLY need his head, the rest of his CNS and his liver examining a

No-Lead solder defect - No solder on pads

Electronics Forum | Wed Dec 17 16:19:42 EST 2003 | swagner

How long are the OSP boards out of there packaging? Is this a double sided smd process or single? Are the boards stored in nitrogen? Sounds like an osp issue to me!

Labeling of SMT solder stencils

Electronics Forum | Tue Sep 14 11:10:20 EDT 2004 | mmjm_1099

Go buy a press stamp at local hardware store. Hammer and a few punches and your done.

Selective solder flux blocking nozzle.

Electronics Forum | Fri Oct 10 05:04:26 EDT 2008 | bing007

We are using Mulicore MF101 flux and a Vitronics selective soldering machine on a lead-fee assembly and are having trouble with nozzles blocking even when the nozzle aperture is increased. Has anyone come across this problem before using fluxes with

Reduction of solder paste usage

Electronics Forum | Mon Mar 05 18:20:44 EST 2007 | ratsalad

We buy our paste in Semco cartridges. You don't need a pneumatic gun to administer the paste to the stencil, just use a caulk gun which you should be able to purchase at your local hardware store. The cheap ones are about $2 (US). We have green


storing solder paste, equipment searches for Companies, Equipment, Machines, Suppliers & Information