Electronics Forum: water based conformal coating (Page 1 of 17)

Problem with conformal coating

Electronics Forum | Sun Apr 10 03:25:35 EDT 2005 | Peter

Normally, some conformal coatings do not have very good wetting properties, that should be basic function of a good coating material (the same reqirement as avoid bubbles during coating process)! For UV curing conformal coatings, you can try Lackwe

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

Ink marking under conformal coating

Electronics Forum | Mon Jul 16 07:10:09 EDT 2012 | mccabekev

I have found that Edding do an aerospace marker, which is water based and does not run with the conformal coating. However, this washes off prior to the coating so it is not much use. Looks like we are just going to have to put some clear tape over

conformal coating

Electronics Forum | Mon Apr 04 08:45:42 EDT 2005 | jimih280

how does polyurethane used for wood floor coating differ from urethane conformal coatings sold for circuit boards? where can i get uv tracer to put in oil based urethane?

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

Un-cured conformal coating

Electronics Forum | Fri Oct 29 09:08:21 EDT 2004 | davef

Electrochemical migration under conformal coating: That's possible. Very few conformal coatings are water resistant. So, if you have ionic material on your board, standback. Uncured material under several IC: Materials like yours need moisture fro

Un-cured conformal coating

Electronics Forum | Wed Oct 27 13:20:47 EDT 2004 | DavidB

We are producing boards with Alpha 591S RMA No-Clean paste and are coating after SMC with Dow silicone ( toluene solvent based) conformal coating. We have experienced several failures due to soft shorts ( electrochemical migration?) We have also obse

Problem with conformal coating

Electronics Forum | Thu Feb 17 10:33:53 EST 2005 | Frank R.

I use conformal coating DYMAX #984-LVUF and I don't know if it's a problem of viscosity but 0805 components are not covered properly. We use a dispensor to applied it and we cured it by UV. Even if I apply a thicker layer, the coating seems to have

conformal coating selection

Electronics Forum | Thu Nov 23 23:59:25 EST 2000 | terry sun

Hello to all out there, We're considering CC process,and would like to know some defferences between SSC3 of Electrolube and Humiseal 1B73, yes,I know that SSC3 is silicone one,and Humiseal 1B73 is solvent based acrylic as well as other basic propert

Mixing conformal coating and RTV

Electronics Forum | Thu Apr 21 11:43:03 EDT 2005 | davef

We understand the problem of trying to coat over RTV. We have seen the same problem with acrylic and urethane coatings not wanting to stick to RTV. Some acrylics seem to be worse than urethane. Since this is a new product, may be you could pot your

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