Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Solder Paste

#35352

Solder Paste | 7 July, 2005

Hi. I'm new in bussines. I have a DEK screen printer and I have to choise solder paste and flux. It has to be lead-free. What do you recomand? Of course it has to be cheap and good. :)

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#35354

Solder Paste | 7 July, 2005

In this case do NOT consider Kester.

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#35357

Solder Paste | 7 July, 2005

AMTECH NWS-4200-4H3 is the best I have come across for a leaded process. As for lead-free I did some studies and we liked the Indium 3.1 and 5.1.

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#35358

Solder Paste | 7 July, 2005

Get some free samples if you can. We have at least a couple solder reps who would not sell you a jar untill you have tried a free sample first. Preferably with them on site when you try it to help you with any issues that might come up. They want to be sure your screen printer is set up well and your profile is good.

Stephen

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#35379

Solder Paste | 8 July, 2005

We've tried many of the different brands and we like the FCT SN100. The nickle really makes it spread out and wet nicely.

You add a few degrees to reflow it but we think the results have been worth it.

mk

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GS

#35383

Solder Paste | 8 July, 2005

Matt, pls,

on wich kind of PCB finisching are you using SN 100?

Tnks

GS

This message was posted Add this forum to your site! Click to learn more. the Electronics Forum @

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Chris Ong

#35433

Solder Paste | 12 July, 2005

Hi

Since other recommended Indium composition.I am also consider having Asahi lead free paste.

Hope you will find the information useful at http://www.asahisolder.com.

Pls share you view on this product Thanks

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Chris Ong

#35434

Your recommendation for Lead Free | 12 July, 2005

Hi,

Have anyone out there been using Asahi products. My knowledge is limited and I only know it from the http://www.asahisolder.com website.

Pls feedback or share your view on the Asahi product. If this product worked better than other even if it has indium in it. It would best to try it.

From what I knew, the world is still engaging in selecting the lead free alloy in the market even though IPC has chosen SAC305.

Do you all feel the same that SAC305 is best of them all?

Awaits for your reply Thanks

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KT

#35451

Solder Paste | 12 July, 2005

Senju for WS and Indium for NC.

Flux is 2235 Kester !

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