[Boatanchors] Solder Kester 88

[J. Forster]

Eutectic is 63/37.

For critical stuff, they usually do a "solderability" test.

-John

============


> I talked to a Kester engineer last week about solder expiring. They do
> it so they won't have too wide a support window. They don't want to have
> to warranty the stuff forever. I have some Kester 44 63/27 solder that I
> got back in the mid 70's. Works great - just as good as the new stuff I
> have at work.
>
> Having said that, if I was going to place a satellite or a person in
> space or depend on something in battle, I'd want good solder. The only
> way to be reasonably sure the solder is good enough is the depend on the
> manufacturers warranty.
>
> As for the 60/40 or 63/27 issue, I can't imagine ever going back to
> 60/40. The eutectic stuff is so much better. I wonder if the old
> boatanchor solder (like in my SX-28) was 60/40?
>
> Hmm, I recently did work for a company that repairs safety related
> electronics for the nuclear power utility industry. Solder expiration
> was never an issue. Manufacture dates for electrolytics was a big issue.
>
> On 9/23/2011 11:14 PM, Robert Moses wrote:
>> Next time that you visit a pharmacy note the expiry date on isopropyl
>> rubbing alcohol!
>>
>> Glen Zook wrote:
>>
>>> On mil spec contracts, solder more than 2-years old is not supposed to
>>> be used!  I have acquired several spools of solder (over the years)
>>> that had to be thrown out because it had "expired"!  Nothing at all
>>> wrong with the solder.  I think that someone in the military contracts
>>> department thought that everything had an expiration date including
>>> solder.
>>>
>>> Glen, K9STH
>>>
>>>
>>> Website:  http://k9sth.com
>>>
>>>
>>> ________________________________
>>> From: rbethman<rbethman at comcast.net>
>>> To: boatanchors at mailman.qth.net
>>> Sent: Tuesday, September 13, 2011 3:13 PM
>>> Subject: Re: [Boatanchors] Solder Kester 88
>>>
>>> Rick,
>>>
>>> I've never heard of it "expiring".
>>>
>>> The ends of the Kester rolls I have, do have lot numbers and the
>>> month/year of manufacture.
>>>
>>> I just use which ever roll is handiest as I'm working on whatever is
>>> the
>>> current project.
>>>
>>> Bob - N0DGN
>>>
>>> On 9/13/2011 4:04 PM, Rick wrote:
>>>
>>>
>>>> I have a pretty big supply of older too. I wonder, does it have a
>>>> shelf life
>>>> or does it deteriorate over time?
>>>>
>>>> Rick / K5IAR
>>
> ______________________________________________________________
> Boatanchors mailing list
> Home: http://mailman.qth.net/mailman/listinfo/boatanchors
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Boatanchors at mailman.qth.net
>
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>