Electronics Forum | Tue Jan 24 10:24:18 EST 2006 | kmorris
We've got a problem here, where we're hand spraying a urethane conformal coat on over a rectangular inductor. The inductor body is a plastic tube, with potting to fill. The top is not always flat (sometimes concave). The problem is that bubbles appea
Electronics Forum | Sun Nov 22 18:40:47 EST 2009 | 89jeong
Hi The bubble shows only around component body after ir reflow. I think bubble means that there is a moisture. How do you dry the PCB(?) before IR reflow? Thanks Ju-young.
Electronics Forum | Thu Nov 19 05:18:37 EST 2009 | prodivegsr
Hi All, Recently we are working on the conformal coating process using Humiseal chemical 1B73 and thinner 521. Bubbles on component body/joints are seen after gone through the IR Reflow Oven. During the conformal coating, only tiny bubbles seen af
Electronics Forum | Tue May 26 10:23:53 EDT 2009 | mun4o
hi, i am proccess eng solder wave process.I have problem with a PCB.There have ceramic SMD capacitor, SMD thermistor and SMD inductor 1uH.After reflow all is OK, but after SW these components are broken???The pin is separated from the body???the que
Electronics Forum | Wed Nov 12 06:23:09 EST 2008 | griffin
One thing to consider regarding the capacitor, The leads are not 100% straight beneath the plastic bottom part. And if you align with regards to the two leads, the leads will be aligned to the pads of your board, but the body of the capacitor is look
Electronics Forum | Sat Sep 30 15:11:25 EDT 2017 | gregcr
thanks for the info SWAG. My thought was to use a GSM/advantis like a radial inserter or odd form place machine, after double side SMT. We run selective solder as well. The parts I'm looking to place are snap-in electrolytics and radial inductors.
Electronics Forum | Wed Jun 03 07:13:27 EDT 1998 | Tom Tellinghuisen
| We have experienced poor adhesion of acrylic conformal coating to plastic bodied IC�s. The observed symptoms of this are a blistering or lifting of the coating at the surface of the component, although peel testing has revealed that this is not al
Electronics Forum | Wed Jun 03 15:22:12 EDT 1998 | Greg Curler
| | We have experienced poor adhesion of acrylic conformal coating to plastic bodied IC�s. The observed symptoms of this are a blistering or lifting of the coating at the surface of the component, although peel testing has revealed that this is not
Electronics Forum | Fri Mar 20 10:31:19 EST 1998 | Mick Jones
| I will be starting a conformal coating process soon, I am looking for any pointers on | 1) Best method for masking components, tape mask, liqued mask | 2) Which is best Spray or Dip? | 3) Compatiblity with no clean solder paste (flux residue) | I h
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