Electronics Forum: coating materials (Page 21 of 42)

AR/UR Coating Application

Electronics Forum | Thu Feb 01 07:41:01 EST 2018 | dontfeedphils

Interesting, never heard of using wax as a coating mask. Not sure how well the AR coating would hold up to a hot alkaline wash (unless you have experience with it), but that stuff usually starts to flake off/de-wet if you just look at it wrong. I'm

What material to use for component staking?

Electronics Forum | Mon Jan 18 12:59:29 EST 2010 | deanm

Looking to find out what materials are commonly used for staking (aka. bonding) through hole components to the PCB in order to withstand vibration in a military (class 3) environment. Polyurethane coating would be applied after staking. I've found st

Criteria for Min Thickness regarding Large and Small pads

Electronics Forum | Mon Jun 30 08:55:31 EDT 2008 | davef

It will be tough to find a dimensional thickness specification for HASL. IPC-6012 Table 3-2, line "Fused tin-lead or solder coat - Coverage and Solderable" states the requirement that there has to be complete coverage of solder on the land, and it mu

Re: AR vs. UR

Electronics Forum | Mon Mar 29 04:36:49 EST 1999 | Graham Naisbitt

Just for the record folks, The customer I believe may be manufacturing stuff for refuelling rigs of various forms. This being the case, the coating would need to be resistant against fuels and oils. The UR material (at least ours!) is able to resi

Re: AR vs. UR

Electronics Forum | Mon Mar 29 19:17:47 EST 1999 | Scott McKee

How true, AR would not be the right choice... Scott Just for the record folks, The customer I believe may be manufacturing stuff for refuelling rigs of various forms. This being the case, the coating would need to be resistant against f

Urethane/Acrylic thru same machine

Electronics Forum | Thu Sep 06 15:36:27 EDT 2007 | kpm135

My company recently aquired an asymtek coating machine and I have been using Humiseal 1B31, an acrylic coating, in it to coat all the boards given to me. They have now come to me and asked if it is possible to run Humiseal 1A33, a urethane coating, t

Conformal Coating Equipment

Electronics Forum | Tue Feb 19 08:08:29 EST 2013 | williamaxler

My company is starting to look into Conformal Coating Equipment. From preliminary talks it sounds like we would like to use a UV material. I have a few question I was hoping as a group you all would be able to pass along some insight. 1. Do any of

Conformal coat training

Electronics Forum | Wed Nov 06 19:59:39 EST 2002 | davef

Consider checking with your CC materials supplier for suggestions. It's to their benefit to help you do a good job using their product. Regardless of your current requirements, consider basing your workmanship on NASA-STD-8739.1 Workmanship Standar

1B73LOC Conformal Coating

Electronics Forum | Mon Jun 25 12:23:15 EDT 2007 | davef

Once the HumiSeal conformal coating has been applied to the printed circuit board it is usually best to allow the material to reach a touch-dry stage, before heating the board to accelerate the cure schedule. This avoids potential problems such as bu

Cleaning for conformal coat

Electronics Forum | Mon Jan 28 08:44:21 EST 2013 | diamondmt

John, In addtion to the cleaning process you may wnat to look at the masking materials you are using as well. Are you using any temporary masking tape? If so, do the dewetted areas coincide? Some of these tapes use a silicone-based adhesive which wi


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