Electronics Forum: selective coating pva350 (Page 1 of 15)

conformal coating

Electronics Forum | Sat Aug 07 02:28:20 EDT 2010 | raghu

We have PVA 350 benchtop dispensing equipement with humiseal 1A33 CC material. is there any moisture measurement process in conformal coating material?

Re: conformal coating selection

Electronics Forum | Mon Nov 27 17:29:13 EST 2000 | Dave F

Contact: Graham Naisbitt

Conformal coating rework jumpers

Electronics Forum | Tue Oct 04 20:31:16 EDT 2016 | davef

IPC-7721, Section 6.1, Jumper Wires, Jumper Wire Selection #5 states: "Recommended wire is solid, insulated, plated copper wire, 22 to 32 AWG with a heat resistant insulation. Wire with tin-lead plating may be restricted due to environmental laws."

Re: conformal coating selection

Electronics Forum | Fri Nov 24 18:27:05 EST 2000 | Darby

Terry, I've never had to deal with conformal coating but I do know that automotive parts manufacturers do a great deal of CC. These are the people that I would be looking to for your answers. Particularly in regard to long term reliability, extreme c

Re: conformal coating selection

Electronics Forum | Tue Dec 05 10:12:51 EST 2000 | blnorman

Being in the automotive electronics industry, we use silicone (Dow 4105 is one in particular). I'll ask the same question - What are your reliability requirements?

Conformal coating machine

Electronics Forum | Tue Oct 31 19:37:34 EDT 2023 | ttheis

That is true; it is not a fast process but it is selective and uses minimal material. Also true that the application consistency has to be checked and sometimes minor adjustments made at the beginning of a run. We have a program that checks for a con

Re: conformal coating selection

Electronics Forum | Mon Nov 27 13:36:41 EST 2000 | C.K.

You'd more than likely have repairability issues with the Acrylic based one. The acrylic-based finish is alot harder and more brittle versus the silicone. Some of the new silicones, you can just "peel" with your fingernail, while still getting reli

Re: conformal coating selection

Electronics Forum | Tue Nov 28 13:26:59 EST 2000 | Graham Naisbitt

Terry Sorry, I just re-read your question and failed to answer all your questions: Shadowing only applies to coatings that are UV curable. Neither of these are UV curable. You do not want this technology for 3 dimensional assemblies, it is too expe

Conformal coating (again)

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

Re: conformal coating selection

Electronics Forum | Tue Nov 28 13:21:33 EST 2000 | Graham Naisbitt

Terry The SCC3 product is a vinyl modified silicone. It is less able to perform at low temps as it becomes brittle. It is not easy to repair because it is essentially silicone. It is not a qualified material to the MIL-I-46058 Spec. Are you sure yo

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