Dirt on wires Filmcaps: ClarityCap PWA

[daan6969]

Ik buyed FilmCaps brand ClarityCap:
4x PWA 100uF/160v
2x PWA 47uF/160v
2x PWA 33uF/160v

The wires of the 47uF and 33uF are nice clean and shiny.
But the 100uF looks like they were heated and then coated with some kind of 2-comp resin, and dryed later.

Look at the pictures.
Should i be worry about something??

 

[rayma]

Maybe oxidation, you can remove it with very fine sandpaper.

 

[daan6969]

its also dry drups of some kind of resin.
Is it production failure, or should i not be worryed

 

[rayma]

If it's new, and in that condition when received, notify the mfr or dealer and ask for a replacement.
The dealer should not have sold you that one in any event.

If bought used, ask the seller for a return if you don't want to keep it. But you can sand that off
if you want to keep it. Should not cause a problem if the lead is left as-is, if you remove the material
from the end of the lead where you will solder it. Don't try soldering the lead unless that is removed
fro the area involved.

 

[daan6969]

On some other forums i ask the same question, and i did not hear about problems.
So i think it wil be okay.
I will leave the leads as they are - that is correct - don't turn them - not even 1 time.
And i wil clean before soldering.

 

[JMFahey]

Never ever saw "new" parts so corroded.

Those look stored for years in a very wet basement or recovered from a flooded area.

Sand/scratch them down to shiny metal surface before soldering