Electronics Forum | Tue Aug 17 13:32:13 EDT 1999 | Brian
| Can anyone help on the subject of de-wetting during the spray coating process. We use PC29M Parts A+B spray coating material, Humiseal tapes and masking dots, Marigold supertouch V70N gloves and Concoat CM533 liquid masking material. We also use a
Electronics Forum | Fri Nov 14 17:21:17 EST 2008 | cisridn
Plugging the holes with temporary solder mask helped some, but once the solder starts to reflow, the fumes from the flux pushed the solder mask out. What I ended up doing in addition to using the temporary solder mask was covering the areas of pcb w
Electronics Forum | Tue Jul 25 16:08:52 EDT 2017 | dontfeedphils
I'm currently working on bringing a manual coating process/workcenter online and my QA team is giving me some grief. For background, we're using Humiseal 1B31 thinned with thinner 521, mixed at 1:1 by volume. Spraying through a Binks HVLP with 10 P
Electronics Forum | Thu Aug 08 16:18:22 EDT 2013 | horchak
Placing and re-flowing the shield is of course the most economical. But once the shield is placed and reflowed this all but rules out inspection test and rework. Reflow should not be an issue if you have a decent forced air convection oven. You may w
Electronics Forum | Wed Jan 12 08:41:01 EST 2005 | davef
Se�or Tech QC Inspection stamps: * VRS Marking, 567 Camino Mercado Ste. A, Arroyo Grande, CA 93420, 800-782-6790 805-481-9787 Fax: 800-743-3135 Fax: 805-474-1238 contactvrs@vrsmarking.com http://www.vrsmarking.com * Des Moines Rubber Stamp Works, 8
Electronics Forum | Sat Apr 21 08:26:57 EDT 2007 | Cmiller
Has anyone experienced a problem with conformal coating adhesion to IS-410 boards? We are having problems with one suppliers boards. IS-410 boards from other suppliers are fine and all FR-4 boards that I have looked at are fine. We are using Conap
Electronics Forum | Thu Dec 11 12:17:16 EST 2008 | bmaheu
Setting up a PCB washing "system" and the facilities required for a cost effective and repeatable cleaning process depend heavily on the application (water soluble versus chemistry cleaning), (batch cleaner versus ln-line) and local factors (quality
Electronics Forum | Sun May 09 14:02:28 EDT 1999 | Southwest Automation Consultants
| My company has a product line that utilizes multi-up PCB's. In order to cut costs for this product line, I have been asked to look into ways of running panels that contain bad blocks. Our SMT equipment is quite capable of doing this, but I need to
Electronics Forum | Thu Dec 22 10:51:12 EST 2005 | killer1994
Yes, I have been using it for 4 years now. We have the 4 axis, 3 head, 2 lines. Inspection station and ir oven. I have to say you will NOT get better support anywhere in this industry than from PVA. Their crew is top notch, always going above and bey
Electronics Forum | Wed Jan 05 16:46:44 EST 2000 | Dennis O'Donnell
Several methods work well. 1. (Low Volume Method) Using an Xacto blade, scrape off the solder mask holding the blade flush being careful not to use the pointed part of the blade. 2. (High Volume Method)Tape off the area that you don't want the mas
