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March 2010

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Subject:
From:
Genny Gibbard <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Genny Gibbard <[log in to unmask]>
Date:
Wed, 31 Mar 2010 08:42:19 -0600
Content-Type:
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 I think you're mistaken Joe.  ORL0 flux is not water soluble, it is
just a low solids flux.  We make use of no-clean ORL0 flux, sometimes in
combination with ROL0 flux, from the same manufacturer, verified by them
to work together.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Kane, Joseph E (US
SSA)
Sent: March 31, 2010 7:58 AM
To: [log in to unmask]
Subject: Re: [TN] What exactly is Organic Flux?

Type OR fluxes are water soluble.  Any residues must be completely
removed, because even the low-activity formulations ORL0 and ORL1 are
reactive.  They will break down in the presence of moisture, causing
current leakage, electromigration and dendritic growth, possible
corrosion, and separation of overlying conformal coat.

And mixing a water-soluble residue with rosin is definitely not
recommended.  ROL0 residues are harder to clean, especially with time,
but they are benign in many service environments.
That is, they are benign unless you mix them with residues that are
water-soluble, which creates a reactive residue that's hard to clean.

-Joe 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Julien Meyer
Sent: Wednesday, March 31, 2010 9:15 AM
To: [log in to unmask]
Subject: [TN] What exactly is Organic Flux?

Hello all, I've been able to find quite a bit of information on Rosin
and Resin type fluxes but not much on Organic fluxes. Can anyone tell me
what Organic flux is made up of and how it may differ - particularly in
the areas of board reliability - from Rosin flux?
Further, I understand that it is not advisable to use two different
types of fluxes in one operation as their different chemistries may be
incompatible, yet we've been suggested the use of an ORL0 flux along
with a ROL0 flux-cored solder.  Do Organic and Rosin fluxes share any
similarities?

Thanks in advance,

Julien Meyer
Quality Assurance
Cobham Surveillance
T:+1 902 468 3007 ext. 3144
F:+1 902 798 8188
[log in to unmask]<mailto:[log in to unmask]>

Cobham Tracking & Locating Ltd. doing business as Cobham Surveillance,
120 Eileen Stubbs Avenue, Suite 200, Dartmouth, NS B3B 1Y1, Canada.
www.cobham.com<http://www.cobham.com>

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