Electronics Forum | Wed May 16 13:55:25 EDT 2001 | davef
Urethane and parylene have the best long term humidity resistance of the conformal coatings. Since yer not hep about urethane, try the parylene [http://www.paratronix.com/apps/, http://www.paryleneinc.com/, http://www.parylene.com/, http://www.scsco
Electronics Forum | Tue Jan 24 19:00:15 EST 2006 | MikeF
Graham Naisbitt is definitely an expert on conformal coating, he has posted answers here for years. Check your material to see what the cure mechanism is. Most urethanes need moisture from the air to cure, the higher the relative humidity the faste
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
Electronics Forum | Fri May 13 19:33:37 EDT 2022 | alex22
Hi Chris. Thanks for sharing these details. We are working with Cree XP-G3 LED (3535). We bought urethane nozzle from CoT (recommendation from Cree), but it didn't solve problem of LED sticking to nozzle. Cleaning nozzle with isopropanol (other recom
Electronics Forum | Tue May 06 15:53:52 EDT 2003 | bremerg
The coating is pliable and is air cured for 24 hours. The potting compound goes into the top assemnbly in 3 diferent stages. The circuit boards are coated using urethane type conformal coating. The unit is also placed into an ESS chamber -40� to +
Electronics Forum | Thu Aug 21 13:11:28 EDT 2003 | James
Can anybody refer me to a company that does conformal coating removal service of assembled PCBs. They are urethane coated boards and we need to remove QFP devices only. Thank You
Electronics Forum | Tue Sep 21 10:16:28 EDT 2004 | davef
Check with your connector supplier, but most press-fit contacts will pierce through Types UR & XY conformal coat (military approved). Acrylic (AR) Urethane (UR) Epoxy (ER) Silicone (SR) Parylene (XY)
Electronics Forum | Wed Jan 30 20:07:56 EST 2008 | davef
Any ol' acrylic or urethane will work. It's possible to remove these conformal coatings. We've never removed coating from components to determine if the marking is still unlegible
Electronics Forum | Fri May 02 18:44:16 EDT 2008 | jlawson
Humiseal has no-VOC coatings Acrylic and Urethane on offer, they too have non-VOC silicones and new UV curable also...!!!
Electronics Forum | Tue Feb 03 12:03:30 EST 2009 | alexander_jw
We need to use a conformal product that will hold up in environmental tests, for southern CA weather specifically. Does anyone have experience with both, which do you prefer? Has anyone seen or had test data for these materials? Thanks in advanc
