Electronics Forum | Tue Feb 24 13:17:59 EST 2009 | toolcrib
LOOKING FOR HUMISEAL 1C51 ANY SIZE CALL 242-246-7064 OR EMAIL LU.VARNELL@HS.UTC.COM
Electronics Forum | Wed Dec 09 08:45:31 EST 2009 | orlando
Does anybody run conformal coating process using UV cure varnish? We have a long experience on solvented urethane coating material but switching to solventless is unknown for us. Could you recommand vendors for UV curing oven? Thanks
Electronics Forum | Thu Mar 31 20:50:13 EDT 2011 | tkirk
I disagree with the others about conformal coating before potting. Some of the softer urethane potting compounds can absorb water leading to caustic nastiness in the voids under the parts. Conformal coating can help fill/seal the voids and keep the n
Electronics Forum | Tue Jul 31 10:16:59 EDT 2012 | silverbullet
We are in the process of revamping our conformal coating room. Presently, we have a C-740 Nordson Asymtek coating machine that sprays most of our boards with Dow Corning 2577. We are spending a lot of time masking boards and are thinking of upgrading
Electronics Forum | Fri Apr 17 08:52:03 EDT 2015 | charliedci
Thanks for the info Sarason. The UVCL is a Urethane. Did not want that hard of finish (for solder rework issues). We like the Acrylic as acetone will remove cured material for solder rework.
Electronics Forum | Mon Aug 20 10:17:50 EDT 2018 | mefloump
Toluol (toluene). I use it in the solvent cups in my PVA machines to keep the nozzles wetted. We also use it to clean spots where coating is not supposed to be. Techspray 2510-N coating remover pen will also work very well for this.
Electronics Forum | Fri Aug 07 16:45:35 EDT 2020 | duso02
All URs require a long time to fully cure. And actually, most users do not reach full-cure before using the board. Even Humiseal 1A33 will be dry enough to handle after a very short time.
Electronics Forum | Thu Aug 12 13:18:43 EDT 2021 | conro
The HumiSeal 1B31 is actually pretty fast drying e.g. 24h @ room temperature or 30min @ 76 °C Link
Electronics Forum | Mon Jul 27 13:41:56 EDT 1998 | Chris Fontaine
Steve, We do a lot of hand spray conformal coating and have had much success. We have had much experience with Humiseal 1A20 Urethane. Acrylics are easier to work with but may not stand up to your environment. I don't have any experience with sili
Electronics Forum | Thu Jun 25 21:13:11 EDT 1998 | Phillip Hunter
| looking for help with fine-pitch printing for what would be the best settings for printing speed, squeegee pressure, seperation speed. | thanks for you time Print speed is determined by your aperture dimensions, paste viscosity type of blade (metal
