We have seen some corrosion due to the use of liquid flux applied to assemblies just prior to reflow. Flux fumes can be corrosive if they can accumulate. The use of nitrogen was shown to eliminate the problem along with elimination/reduction of liquid flux application. Dave Hillman Rockwell Collins [log in to unmask] ______________________________ Reply Separator _________________________________ Subject: RE: ASSY: Rusty Reflow oven. Author: [log in to unmask] at ccmgw1 Date: 5/14/96 1:30 PM Dear Technet, Does anyone ever experience with a new reflow oven, and used for 10 months, and it got rusted on the inner portion of the oven? Poh Kong Hui Nera Electronics