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?
Electronics Forum | Fri Apr 17 14:08:00 EDT 2015 | davef
Humiseal says, "UV cure – These materials are also more difficult to repair as they are the most chemically resistant and mechanically tough of all conformal coatings. Removal is possible locally by using powder abrasion."
Electronics Forum | Wed Jul 06 20:15:51 EDT 2005 | Gary Bremer
The good old days weren't all that bad. When I needed to have a specification callout for a conformal coating on an engineering drawing, I just used MIL-I-46058, type UR (for example), and the drawing checkers were quite happy. Since MIL-I-46058 ha
Electronics Forum | Mon Apr 04 13:06:01 EDT 2005 | davef
Here you go: * Wood sealing http://www.paintdocs.com/webmsds/webPDF.jsp?SITEID=DURA∏no=86300000&doctype=MSDS〈=E * Board sealing http://www.mgchemicals.com/msds/english/liquid/4223.pdf
Electronics Forum | Thu Jul 07 00:53:12 EDT 2005 | Gary Bremer
Curtiss-Wright uses MIL-I-46058 at present. Any suggestions on how to approach engineering and update the drawings for new contracts?
Electronics Forum | Fri Jul 06 10:08:21 EDT 2007 | blnorman
The coating thickness is more a property of the individual coating itself. The 0.03 - 0.13 is based on average properties of acrylics in general. It's like trying to pour 3 mils of motor oil on a table. The material will find it's own thickness.
Electronics Forum | Wed Jun 03 15:22:12 EDT 1998 | Greg Curler
| | We have experienced poor adhesion of acrylic conformal coating to plastic bodied IC�s. The observed symptoms of this are a blistering or lifting of the coating at the surface of the component, although peel testing has revealed that this is not
Electronics Forum | Thu May 02 10:25:14 EDT 2013 | wahahasteven
we have a Specialty coating system (SCS) precisoncoat spray coating system. we are using an acrylic coating material with about 80cp viscosity. The spraying pressure is around 4-6 psi. The main issue is the finish looking of the board. If we apply hi
Electronics Forum | Thu May 02 14:07:53 EDT 2013 | duso02
I would suggest lowering the viscosity even more. Humiseal even sells 1B31 pre-mixed specifically for spray machines and the highest they go is 65cps.
Electronics Forum | Thu May 02 14:26:57 EDT 2013 | wahahasteven
Thanks for the advise, but we want to change the lacquer/thinner ratio at the last step if we don't have other solution.
