Electronics Forum | Wed Feb 22 09:48:24 EST 2006 | slaine
Hi Ive checked into this a bit more, there are two coatings im told you can get one is a teflon coating that you paint on then bake, the other is a red oxide (lead free) paint. Also if your using solder pots and they are close grain cast iron they a
Electronics Forum | Wed Feb 22 16:42:47 EST 2006 | Mark Beesley
Hello John, There are some coatings for aluminum to eliminate solder drag out. The do not work with all fluxes it is called hardcoat anodized it is black or geen in color. Unless you have faily high volumn the hard coat cost can be as high as titan
Electronics Forum | Thu Feb 23 18:36:29 EST 2006 | Chris
Do you want some coating for aluminum? If so here you go. Nordic Ware Hwy 7 at 100 Minneapolis, MN 55416 Phone: 952-920-2888 - Fax: 952-924-8621 Toll Free: 1-800-328-4310 ext.642 These guys charge about $200.00 per lot. You can coat with Silve
Electronics Forum | Tue Feb 20 08:19:54 EST 2007 | Steve
One question about the build to print statement; is there some note saying that the vias are to be plugged with mask? If so, I'm wondering when the circle of mask was done over the vias. If it was done as a secondary operation after flood coating, t
Electronics Forum | Thu Jul 05 22:56:53 EDT 2007 | gyverlo
Hello Sirs: Recently we are having an issue with environmental stress (high humidity or moisture), so we decide to apply conformal coating on our motherboard to protect via holes. According to IPC-A-610D, spec of thickness for type AR is 0.03~0.13 m
Electronics Forum | Wed Aug 27 08:06:43 EDT 2008 | davef
Thick, hard conformal coatings of acrylic, urethane and epoxy have a well documented history of causing solder joint cracks and breaking glass/ceramic and other brittle components. Dissimilar expansion and fairly high surface bond strengths of the ma
Electronics Forum | Thu Dec 11 15:38:26 EST 2008 | hegemon
Dave is correct. Try http://www.ccrco.com Removal of conformal coatings from specific sites might be a more manual process. Think small abrasive cabinet, and an air wand shooting wheat chaff or a (softer) plastic bead media. For components with A
Electronics Forum | Thu Mar 12 21:14:16 EDT 2009 | davef
Mask: * I/O connector contact surfaces * Bus connector contact surfaces * Configuration jumper blocks * Test points * Surfaces that contact heat sinks (heat sinks are removed prior to coating) * Board mounting holes * Adjustable potentiometers * P
Electronics Forum | Tue May 12 06:44:16 EDT 2009 | jhk71
We do a conformal coating for a customer with copper-nickel-gold pads on his board. The pads are masked prior to coating with a standard gel, containing ammonia. After thousands of boards, being processed like this, now the gold pads seem to be less
Electronics Forum | Wed Dec 02 14:54:52 EST 2009 | jdumont
Hi all, just wondering what type of brushes you all are using to manually touch up/apply your conformal coatings? We use an solvent based acrylic and do minor touch ups as they are processed. Occasionally we will have a bristle or two come off the
