Electronics Forum | Thu Jul 21 08:24:28 EDT 2005 | dougs
are you going to clean the boards prior to coating?
Electronics Forum | Wed Mar 04 08:32:45 EST 2020 | stephendo
We bought a conformal coating removal machine AKA a sand blaster at an auction. It is a CCR2000 especially made to be ESD safe. Does anyone have any experience with sandblasting conformal coating? We mostly use humiseal 1A33 and UV40. When we use the
Electronics Forum | Fri Feb 13 09:17:11 EST 2004 | Kris
we are worried about the coating not being able to cover underneath the BGA. If the coat is excessive then it would cause CTE issues. Also if anybody has data on 85/85, 1000 hrs after conformal coating of BGA, would appreciate if you guys can share
Electronics Forum | Mon Aug 01 18:50:46 EDT 2005 | crishan
Hi Cecil, We using conformal coating in our manufacturing area, we did use to use Humiseal, others have been Bectron and Peters. We recentalt switched all lacquering to Peters, since it is lead free and it is a lot friendly than Humiseal. To answer
Electronics Forum | Wed Feb 11 11:53:42 EST 2004 | Maryann
Our company strictly does selective conformal coating applications for the customer. We will quite often see one side looks great, and the other side doesn't. We often see dewetting around holes, and have found this can be a possible flux build up. A
Electronics Forum | Wed Jan 24 09:34:38 EST 2024 | wintercurrants
The equipment of Specialty Coating Systems and PVA is both simple to operate and maintain. Since it's a spray booth, constant maintenance is required or you risk having a serious headache. Our conformal coating line includes a double-sided UV oven, a
Electronics Forum | Thu Feb 12 14:26:22 EST 2004 | Kris
Hi all, We have a PCB without any BGAs on it which goes into harsh environment.We therefore conformal coat it. After assembly the PCBs are expected to withstand "85degc/85%RH for 1000 hours" We now want to add a BGA to the PCB. Does any one have
Electronics Forum | Wed Jul 20 10:07:05 EDT 2005 | cecil
Does anyone have any input on the need to bake out an assembly prior to the conformal coat process? I understand baking out components/pwb's prior to processing through the reflow or wave solder process if the material shows excess moisture absorbtio
Electronics Forum | Wed Jul 20 15:33:38 EDT 2005 | cecil
QC dept. refrain from giving direction!! Geez have I died and gone to heaven?
Electronics Forum | Thu Sep 30 14:00:47 EDT 2004 | blnorman
I'll third the motion for hand dipping the boards. One other idea is to get coating in a can. Many companies will supply coatings in aerosol cans for touch up and small usage.
