Condensing environments and No-clean are not a good combination. I agree
with you and I am sure the flux supplier will agree with us. 
 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Joel Alexander
Sent: Friday, November 30, 2007 4:25 PM
To: [log in to unmask]
Subject: [TN] Wave solder flux volume measurements

Hi guys its me again,


We have a customer that builds power systems for the Telcom companies. 
They recently had a field failure on a backplane. It had sever corrosion. 
We process the assembly  with a VOC no-clean solder and have never had
issues in the past. The customer indicated that the backplane was in a
damp/moist environment. That is not a good combination for no clean flux. 
I suggested cleaning but they insisted that we monitor our flux volume to
ensure it is at the recommended application volume. I did not really agree
from a reliability standard. 

Does anyone out there measure their no clean flux volume on a regular basis?



Joel Alexander
Quality Assurance Manager
TT APSCO, INC. 

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