Electronics Forum | Fri Sep 09 15:53:22 EDT 2005 | patrickbruneel
If the white residue is from a no-clean flux or no- clean solder flux core you can leave it on the board. (Consult with the flux or cored solder manufacturer) Because after being encapsulated with conformal coating the residue is sealed from humidity
Electronics Forum | Fri Sep 09 15:03:46 EDT 2005 | Amol
Hi, I am running a circuit board that needs a part to be put on it after cleaning and before conformal coating. the only problem is that after cleaning and hand assembly of the part, there is a thin whitish residue in the ckt board that one can see w
Electronics Forum | Wed Feb 16 12:47:58 EST 2011 | dennisfo
I've been here approx. 3 months. It was indicated that Xylene has alwas been used but it was never indicated that bubbles were not present in the past (ignored or touchup). I have a sample of Humiseal 73 thinner ordered for testing. We've been thinne
Electronics Forum | Fri Sep 30 11:00:14 EDT 2005 | Amol
i tried scrubbing the boards with xylene when they are hot from the bake, the the pockmarking seems to have almost disappeared! Amol
Electronics Forum | Tue Jun 13 19:58:33 EDT 2006 | davef
Team Services: Removing IC markings * methylene chloride to remove the markings * xylene and toulene will also remove some paints * "Black boxing" Simply use a tiny piece of sandpaper to "scratch the surface" and render the device blank. Chris: Sand
Electronics Forum | Fri Jan 16 06:53:33 EST 2009 | stevewilde
I am using Humiseal 1B31 conformal coating and xylene mix on a PVA coating machine. Bubbles are appearing between the pins of LCCs mainly and bubbling is worse when put through the IR oven. Does anyone have any suggestions or tips to elliminate this
Electronics Forum | Wed Feb 16 12:22:54 EST 2011 | duso02
Have you always used xylene? For our 1B73 we use nothing but 73 thinner from Humiseal or PGMEA at about 50/50 depending on the humidity.
Electronics Forum | Tue Feb 19 18:51:45 EST 2013 | tombstonesmt
We've had great success with acrylic based cut with xylene. Very accurate with little to no masking necessary for keepout areas, very rarely have to make adjustments on our Asymtek. On the other hand we have an Asymtek dedicated for silicone coatin
Electronics Forum | Thu Mar 02 21:09:22 EST 2000 | Dave F
Doug: To remove paints, we've tried a bunch of stuff like messy, hazardous chemicals (ie, methylene chloride, xylene, toulene). We've blasted (erzat been blasted???), like Stu says. We used etching pens. Auuuurgh!!! Now, we paint over them with
Electronics Forum | Thu Mar 02 21:09:22 EST 2000 | Dave F
Doug: To remove paints, we've tried a bunch of stuff like messy, hazardous chemicals (ie, methylene chloride, xylene, toulene). We've blasted (erzat been blasted???), like Stu says. We used etching pens. Auuuurgh!!! Now, we paint over them with
