Electronics Forum | Thu Sep 08 14:16:24 EDT 2005 | pjc
Try contacting Humiseal. They are BIG in conformal coating materials: http://www.humiseal.com/
Electronics Forum | Wed Sep 30 11:32:45 EDT 2009 | pbarton
What type of conformal coating are you using and are you allowing the coating to migrate under the device in question? If you are allowing the coating unbder the BGA the problem could be CTE of coating is much greater than that of the BGA balls/sold
Electronics Forum | Mon Apr 23 16:34:41 EDT 2007 | davef
Well then, maybe it's an incompatibilty between the soldermask and the coating, possibly due to undercuring of the soldermask. Thoughts are: * Some suppliers provide their thoughts on the compatibility of their product with other suppliers. For ins
Electronics Forum | Fri Jun 19 15:17:54 EDT 1998 | Chris Jackson
We are in the process of validating Silicon 1C55 (thermal cure) conformal coating over Alpha LR725 solder paste. I am looking for anyone who may be using this process, or has been exposed to someone who is doing this process. Our concern is with the
Electronics Forum | Mon Dec 11 19:21:32 EST 2023 | SMTA-64387074
PVA and Specialty Coating Systems both have equipment that are easy to program and maintain. It is a spray booth so maintenance needs to be regular or you will have quite the headache. We have a conformal coating line with 2 coaters a board flipper a
Electronics Forum | Sat Oct 08 11:57:58 EDT 2016 | davef
A friend in the contract coating business said: "... ask why the wire is [teflon] coated in the first place, as only the solder joints should be coated in this situation as the flexing/bending of the wires will cause the coating to crack and flake of
Electronics Forum | Mon Sep 27 20:00:24 EDT 2004 | davef
We agree with Hoss. Dipping is far more controllable and less expensive than spraying for the casual user. An alternative to consider contracting your coating requirements. Amoung the service providers are: * http://www.newenglandcoating.net * htt
Electronics Forum | Sat Apr 21 12:06:43 EDT 2007 | Cmiller
I coated three other bare boards on one side this morning from two different suppliers. Two of them had exceptional adhesion and one was so-so. I ran them through the reflow oven, coated them and got the same results on the other side, so it does not
Electronics Forum | Mon Jan 26 20:17:01 EST 2004 | davef
Some temporary solder masks outgas ammonia as they cure. It's possible that the first side cured and out gassed through the grounding hole. But when the second side cured, it outgassed between the board and the coating and in so doing reacted with
Electronics Forum | Tue Oct 31 19:28:24 EDT 2023 | ttheis
We built our own coating system by mounting a Universal Robots UR5 to an edge conveyor between a magazine unloader and magazine loader. The robot has a needle dispenser on the head. We chose a needle dispense process to avoid aerosols and complex ven
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