Hello Victor,

Solder mask is designed not to be removed therefore it takes very strong chemistry to strip it off.  That is typically done by immersing the circuit board in a concentrated caustic/solvent solution for several hours, followed by high pressure spray rinsing.  Alternately it can be removed through sanding or grinding using most common means.  

If you are interested in a chemical stripping option, then I suggest that you contact Oliver Sales (OS-TECH)  http://www.os-tech.com/ .  They sell a very good product for solder mask stripping.

Best regards,

Tony Lentz
FCT Assembly
Field Application

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: Friday, October 2, 2015 5:52 AM
To: [log in to unmask]
Subject: [TN] FW: Solder mask removal, SMOBC

Fellow TechNetters:

   I did not receive very much feedback on my initial inquiry.   Therefore, I ask again.   Additionally I also ask if Solder mask and conformal coating the same Product/Term (IPC-7711.21  section 2.3.1.   I want to removal/strip solder mask.   At this point I do not known the solder mask vendor or type.

Victor,

From: Hernandez, Victor G
Sent: Thursday, October 01, 2015 10:56 AM
To: TechNet E-Mail Forum
Cc: Hernandez, Victor G
Subject: Solder mask removal

Fellow TechNetters:

   I have been asked to see if that is a satisfactory method for removing/stripping solder mask from sample coupons chemically and/or mechanically.

Victor,


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