not recommended IMO.
         jk
On Jul 17, 2014, at 2:14 PM, Dave Lagzdin wrote:

> Caustic pot?
>
> http://www.eraser.com/products/wire-cable-strippers-product/ 
> chemical-wire-stripping/dsp2-stripping-pot/
>
>
> On 17 July 2014 13:56, Graham Collins <[log in to unmask]>  
> wrote:
>
>> Hi Steve
>> No advice on removing the insulation, but can you space the part  
>> up off
>> the board a bit to get the insulation out of the solder joint?   
>> Would avoid
>> scrapping the parts...
>>
>> Good luck with the smoke, we've had that a couple of times here  
>> and it is
>> no fun.
>>
>> regards,
>>
>> Graham Collins
>> Senior Process Engineer
>> Sunsel Systems
>> (902) 444-7867 ext 211
>>
>>
>> On 7/17/2014 2:46 PM, Steve Gregory wrote:
>>
>>> Hi All!
>>>
>>> I'm trying to deal with all the smoke that's here in Boise today,  
>>> it's
>>> probably the worst smoke I've ever been in. The jet stream has  
>>> made a dip
>>> and is carrying all the smoke from the fires in Washington,  
>>> Oregon, and
>>> the
>>> fire north of us in Boise county right into the Treasure Valley  
>>> and it's
>>> all packing up against the mountains to the west of us (cough,  
>>> cough..)
>>>
>>> Anyways, I have a question about a little custom inductor from  
>>> Vishay
>>> Hirel
>>> that we have here. It appears that we have a certain datecode  
>>> batch of
>>> these where the insulation on the part of the wire that gets  
>>> soldered into
>>> the board wasn't stripped and tinned high enough, and now when we  
>>> try to
>>> install them into the board the insulation prevents wetting at  
>>> the top of
>>> the board and we have insulation in the solder joint which of  
>>> course is a
>>> defect:
>>>
>>> http://stevezeva.homestead.com/Vishay_Inductor.jpg
>>>
>>> The picture is of one that we pulled out of a board, and you can  
>>> see that
>>> the insulation goes down past the shoulders and into what is  
>>> supposed to
>>> be
>>> the solderable area.
>>>
>>> I think I know the answer to my next question, but I'll ask it  
>>> anyway. Is
>>> there any clever way to remove that insulation without damaging the
>>> inductor? The picture makes this inductor look huge, but it's  
>>> not, it's
>>> maybe .250" in diameter, and the wire is a pretty small gage too.
>>>
>>> I tried dipping it first in a lead-free tinning pot set at 600  
>>> C., no
>>> luck,
>>> then 700 C., no luck, then 800 C., and no luck. I was able to  
>>> darken the
>>> insulation and melt the yellow tape that wraps the inductor, but  
>>> that's
>>> about it. I'm think that the only way to remove this insulation is
>>> mechanically...which will be a trick because the inductor and  
>>> wire is
>>> pretty small.
>>>
>>> Hate to scrap these things because they are long lead custom  
>>> inductors.
>>> But
>>> we can't use them like they are....
>>>
>>> Steve
>>>
>>>
>>
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