What the? and shhhhh! (8 Sep, 2017)

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Re: What the? and shhhhh! (8 Sep, 2017)

Postby phill » Sat Sep 09, 2017 7:55 pm

https://www.aliexpress.com/item/2PCS-XG ... 68133.html

Flux Solder Paste Sn63/Pb37
i found this interesting to play with as well
good for hot air stuff

https://www.aliexpress.com/item/2000W-2 ... 11356.html

speaking of which they are getting ridiculously cheap for what you need as well
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Re: What the? and shhhhh! (8 Sep, 2017)

Postby Glenn » Sun Sep 10, 2017 3:54 am

Phil,
I would only use one of those heat guns for shrink tubing. I have a temp controlled hot air pencil / solder iron station. Hakko 907 iron on station. I use those cheap bits you linked to. Great value.
Yes that it hippy solder and it probably causes MORE landfill due to whiskering and premature joint failure and thus disposal of otherwise good electronics. I dislike the finish lead free gives the solder joint; eutectic tin/ lead has a far more pleasing look. Lead free joints, even good ones can look "dry / cold". Why do the Military, Medical and Aerospace electronics makers not use lead free solder?
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Re: What the? and shhhhh! (8 Sep, 2017)

Postby phill » Sun Sep 10, 2017 10:51 am

i was quite surprised at the quality of build of that heat gun .. it was bought for my plastic welding kit as an addition to a pistol handle plastic welder ( which is my normal air solder go to if needed )
i played with it on a mobile board with the paste and it worked well .. far better than expected
i have had no experience of whiskering of anything i have soldered ( ad except a power supply i built in the 80s with 60/40 solder ) but have read the reports on it and probably wont use it on my next nasa project ( my fixes tend to be life extensions not restorations )
the pure tin solder was bought in the first place because i needed to re tin a copper fondue pot ..
finding some was difficult till i figured i could use 100%sn solder
the solder is now what i use on most of the solder repairs i do as it feels nicer and cleaner to use ( no black fingers )
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Re: What the? and shhhhh! (8 Sep, 2017)

Postby Glenn » Sun Sep 10, 2017 3:42 pm

Phil,
To each their own.
Use what you are comfortable with. I will do the same.
Kind regards,
Glenn.
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Re: What the? and shhhhh! (8 Sep, 2017)

Postby phill » Sun Sep 10, 2017 4:01 pm

Glenn wrote:Phil,
To each their own.
Use what you are comfortable with. I will do the same.
Kind regards,
Glenn.

you and bruce obviously do a lot more commercial grade stuff than i do
and as such i would take your advice and do it the same way
but for playing or when needed those things work well enough to do most things
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Re: What the? and shhhhh! (8 Sep, 2017)

Postby Glenn » Sun Sep 10, 2017 6:49 pm

Phil,
I agree 100%.
I did not intend any offence to you . The hot air gun looks really great, I use an old Wagner hot air stripper that has done 300000km if it were a car to shrink stuff,
The hot air gun you linked to is now on my list to purchase. I have to save up to do so,
Glenn.
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