Electronics Forum: coating materials (Page 26 of 42)

Acrylic Conformal Coating

Electronics Forum | Wed Nov 19 10:11:10 EST 2003 | loz

We have just got involved in conformal coating, with mixed results. We are machine spraying and have experienced various machine issues. Another one was the consistency of the material being sprayed, we mixed it ourselves (badly?). We now buy it pre-

Conformal Coating Machines

Electronics Forum | Mon Jun 14 21:02:50 EDT 2004 | hap

it is not practical to target an exactly 1 mil film thickness, the materials manufacturers do not give an exact solid content figure but only a target range. temperature and batch preparation also play a small role. You could probably target 1 mil p

Conformal Coating BGA's

Electronics Forum | Wed Jan 12 10:15:43 EST 2005 | davef

We conformal coat our boards and get pretty good coverage along the edges of BGA. If you need coverage along the edges and are not getting it, your supplier may be able to recommend a different material or application method. Most often, underfill

Conformal Coating

Electronics Forum | Fri Nov 04 13:35:17 EDT 2011 | travishemen

Nordson has a viscosity control system and a laser fan width control option. We use the viscosity control system on our machine. Basically it heats the material to a set temp. The laser fan width measures the spray pattern width with a laser and a

Potting/Conformal Coating

Electronics Forum | Thu Feb 25 18:14:46 EST 2016 | rgduval

They're open ended on the thickness (read that as, have no clue). They've indicated that they would like the coating to protect the circuitry from ESD, and mechanical shock. They also would like to be able to see the LED's through the material. An

Conformal Coating Coupons

Electronics Forum | Mon Apr 17 10:21:21 EDT 2017 | dontfeedphils

So I'm starting up a conformal coating process from scratch (again, although it's been about 10 years) and I'm looking for the best option for verifying thickness. I plan on going the "coupon per setup" route which will encompass both our manual spr

AR/UR Coating Application

Electronics Forum | Thu Feb 01 09:09:10 EST 2018 | deanm

I'm not sure if your customer will allow it but consider sealing the perimeter of the connector where it meets the board with some kind of sealant or staking material. Cure it then apply tape on top of it. Then all you have to do is remove the tape a

Re: ESD floor paint/coating

Electronics Forum | Sat Jan 06 10:12:51 EST 2001 | Dave F

Vinyl ESD floor tiles are probably the most expensive approach to "permanent" flooring, about $8 a square installed. VPI and 3M are reputable suppliers. Let me digress on ESD floor "waxes", the earlier poster�s comments are well taken, but the bigge

Re: Selective Wave Soldering

Electronics Forum | Tue Apr 07 14:37:14 EDT 1998 | Chrys

Be careful about the material you choose. All the materials out there are basically glass-filled epoxy composites, but they are different blends with different fillers. Some of them have carbon in the matrix to make them ESD safe, but it also short

Re: HASL - again?

Electronics Forum | Fri Jun 18 14:19:29 EDT 1999 | Earl Moon

Now don't everyone jump on this at once, but it seems time for me to send out copies of my not even close to being dated copy of an article about HASL. Though it was published in 1992, in Printed Circuit Fabrication Magazine, and it got rave re

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