SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492024-03-29T06:23:24-06:00SparkFun Electronicsmachadolab on TOL-11790 - Solder Paste - 40g (Lead Free)machadolaburn:uuid:22244289-565f-6fda-e0e4-7f5337b4ddab2014-03-02T15:59:08-07:00<p>Got the paste earlier this week and did some reflowing today. It is indeed horrible. The top layer of the paste when I first opened the jar was this thick rubbery layer, like the paste is quite old!<p>My results were very similar to FelixR's, having little splatters all over between pads!</p></p>
Customer #399726 on TOL-11790 - Solder Paste - 40g (Lead Free)Customer #399726urn:uuid:b34f4ca3-4a06-1980-5851-559aac87d8562013-12-19T16:16:14-07:00<p>Is this product "no clean"?</p>
Customer #344403 on TOL-11790 - Solder Paste - 40g (Lead Free)Customer #344403urn:uuid:8f10d85c-68b4-afc4-aa0e-1c081cd241e02013-12-12T02:31:31-07:00<p>Chip Quik sells a tin+bismuth paste with a very low m.p. See CN Lohr's you tube vids about this. With this stuff, he solders his boards over a 250W halogen work lamp, or uses a hot-air gun.</p>
FelixR on TOL-11790 - Solder Paste - 40g (Lead Free)FelixRurn:uuid:21f4bb1e-eccf-76db-0d14-72faee7cce8b2013-11-14T06:25:48-07:00<p>Here's my review of this paste:
http://lowpowerlab.com/blog/2013/06/19/from-china-with-love-bad-solder-paste/</p>
Jeff_M on TOL-11790 - Solder Paste - 40g (Lead Free)Jeff_Murn:uuid:24429ec7-ecfa-ff1b-3e59-d9e6a29e33052013-10-16T14:09:38-06:00<p>Bought some of this paste and it's absolutely horrible. I'm having the same issue as others where the solder doesn't pull together as it should, doesn't reflow properly, and generally looks like crap.</p>
Jake0313 on TOL-11790 - Solder Paste - 40g (Lead Free)Jake0313urn:uuid:314bf962-7cdd-39b3-088a-330eb100a8242013-10-11T20:14:30-06:00<p>Have you tried cleaning the pads with flux (flux pen) before applying the solder paste.</p>
Jose Luis2 on TOL-11790 - Solder Paste - 40g (Lead Free)Jose Luis2urn:uuid:f0e2a1f3-2fe9-6f31-9a0b-6230d3321e052013-09-21T06:14:01-06:00<p>I have the same issue with this paste.</p>
Rocky3 on TOL-11790 - Solder Paste - 40g (Lead Free)Rocky3urn:uuid:6a20b4f9-9509-1d93-dc1c-9b5ca3129f782013-07-02T17:26:37-06:00<p>Hello,
I have recently bought this solder paste and I haven't been having much sucess with it. I use hot air for heating, the paste starts melting while forming micro sized spheres around the pad perimeter that eventually break away from the pad and start floating around.
Here is a snap shot of the metled solder paste :
http://imageshack.us/photo/my-images/541/1kmn.jpg/</p>
MikeGrusin on TOL-11790 - Solder Paste - 40g (Lead Free)MikeGrusinurn:uuid:c756bb6f-c22d-d35c-b5c7-8164a1d48a7e2013-05-22T15:15:34-06:00<p>Hey Quin! Good question; I spent some time (as I'm sure you did) looking for a reference and didn't find one; a very close formula has a melting point of 231C so I'd start with that and do some tests on either side (we do this at SFE as well). Let us know how it goes, and great job at Maker Faire!</p>
Kamiquasi on TOL-11790 - Solder Paste - 40g (Lead Free)Kamiquasiurn:uuid:1aab7148-ee16-d6af-8386-2ce70c0a87532013-05-21T19:37:17-06:00<p>Might be one for techsupport@ - the datasheet doesn't mention, other vendors don't mention, and the composition is different enough that I wouldn't want to make an assumption based on other Tin/Silver or Tin/Copper compositions (if forced to: between 217°C and 230°C). If you have this paste (looks like it's out of stock right now), you can always try and find the ideal temperature / profile for your workflow directly.</p>
Qtechknow on TOL-11790 - Solder Paste - 40g (Lead Free)Qtechknowurn:uuid:57a6d0ad-3c87-715c-e8c4-ee612a23db392013-05-21T17:14:31-06:00<p>Do you know the melting point of this solder paste? I'm trying to make a toaster reflow oven using this soldering paste.<p>Thanks,
Quin</p></p>
Customer #344403 on TOL-11790 - Solder Paste - 40g (Lead Free)Customer #344403urn:uuid:10c3b62c-69df-7ba8-ca60-ccab7e4355f92013-04-07T02:49:21-06:00<p>30g is just 2g over an oz. Maybe someone got confused about the quantities.</p>
JerZ on TOL-11790 - Solder Paste - 40g (Lead Free)JerZurn:uuid:5b8ffe7e-7a6f-5a9d-2bd6-2c362f3ede672013-04-05T20:35:09-06:00<p>A toothpick works well.</p>
Lion XL on TOL-11790 - Solder Paste - 40g (Lead Free)Lion XLurn:uuid:6bba7d8e-331d-6c23-084e-9ce7dea73a9a2013-04-05T11:53:12-06:00<p>Sounds to me like the manufacturer needs to do better QUA control on their products, but that has nothing to of with SF. They have no way of knowing EXACTLY how much is each, but at least they are telling us, and they also compensated for the difference (look at the other product listing for the price!). Other shops probably wouldn't have bothered....<p>take breath...release...wusaaaa..</p></p>
Customer #143483 on TOL-11790 - Solder Paste - 40g (Lead Free)Customer #143483urn:uuid:27d86604-fac5-df16-b3e0-5153cdd302902013-04-05T10:49:52-06:00<p>What's the best way to apply this if you don't have a stencil?</p>
JerZ on TOL-11790 - Solder Paste - 40g (Lead Free)JerZurn:uuid:ee8b6226-2ab1-fc47-5273-dd67d61d8e6e2013-04-04T20:09:54-06:00<p>"The label says 50g, but they actually weigh closer to 40g.
NOTE: But lately we've measured closer to 30g in each container."
WTF?<p>It's nice these are back in stock, but how much is in it when I open the box?</p></p>