Electronics Forum | Mon Jun 25 10:59:49 EDT 2007 | simsj
We're using the 1B73LOC conformal coating from Humiseal. We've seen some bubbling of the coating. Their tech handbook suggested reducing our oven ramp speed. Does anyone have a good profile for this? They've always pointed me to Nordson, and Nord
Electronics Forum | Fri Jan 22 14:31:14 EST 1999 | Dave F
| I have boards coated with Humiseal 1B73. At a late point mfg. site we need to remove a series of 0603 resistors for optioning purposes. I have been trying to determine the fastest, easiest way to re-coat the pads after removal. Drying time of the c
Electronics Forum | Thu Jan 22 09:04:22 EST 2009 | mefloump
Humiseal recommends a 1 to 1 mix ratio of 1B31 and Thinner 521. I have for that I need to thin my ratio more to get humiseal to spray correctly in our PVA650. Also I am using Humiseal 1B73 but the tech data sheets say the same for spraying. Try thinn
Electronics Forum | Tue Nov 30 11:08:22 EST 2004 | jdumont
Hey all, we will be starting to coat our PCB's soon. I am looking for info on what type of UV light is needed to inspect the boards. We will be using Humiseal 1B73 Acrylic coating. TIA, JD
Electronics Forum | Fri Feb 18 11:25:14 EST 2005 | davef
It's weird that it would be just 0805. When we see this it relates to a single part number and it goes way after a time. We use a Humiseal 1B73. I've emailed you the contact for a person that is very knowledgeable on conformal coatings.
Electronics Forum | Sat Jul 09 08:18:10 EDT 2005 | jdumont
Try Ellsworth Adhesives. We have good luck with them getting 1B73 in here fast on most occasions. www.ellsworth.com ...and no I dont work for them or know anyone who does!
Electronics Forum | Mon May 24 19:37:57 EDT 2010 | jry74
I am new Engineer in conformal coating and I am looking for help with dewetting. What "Tricks of the trade" can I try to reduce or eliminate dewetting? We use a lot of Conap CE 1155 and Humiseal 1B73? Any help would be appreciated!!!
Electronics Forum | Mon Jun 25 11:55:47 EDT 2007 | ck_the_flip
I don't think THEY (Humiseal) know how their material cures. I have a data sheet from them for 1B73, and it says 24 hours at room temperature or 30 min. @ 170�F. We use our in-line oven mainly to dry the material and make it tack-free. You would
Electronics Forum | Tue Dec 02 14:31:48 EST 2008 | dontfeedphils
Hey guys, just joined the site and I'm looking for some help. In our coating department we are running a Asymtek C-740 with a Jet and film coater. The coating that we are using is Humiseal 1B73 acrylic. The problem that we are having is that the C
Electronics Forum | Mon Jun 25 12:23:15 EDT 2007 | davef
Once the HumiSeal conformal coating has been applied to the printed circuit board it is usually best to allow the material to reach a touch-dry stage, before heating the board to accelerate the cure schedule. This avoids potential problems such as bu
