Electronics Forum | Mon Dec 28 09:12:56 EST 2009 | kpm135
@tommyg_fla According to the TDS the recommended coating thickness for Humiseal 1B31 is only 1-3 mils so if I had to guess I would say your issue might be that you're re-coating over the first pass too soon. All the solvent hasn't evaporated and the
Electronics Forum | Mon Nov 30 23:11:50 EST 2009 | prodivegsr
Hi sforman1 Are you refering that the UV is able to cure on solvent based material too ?
Electronics Forum | Wed Jun 03 01:06:13 EDT 1998 | Mike Moninger
| We have experienced poor adhesion of acrylic conformal coating to plastic bodied IC�s. The observed symptoms of this are a blistering or lifting of the coating at the surface of the component, although peel testing has revealed that this is not al
Electronics Forum | Wed Jun 03 07:13:27 EDT 1998 | Tom Tellinghuisen
| We have experienced poor adhesion of acrylic conformal coating to plastic bodied IC�s. The observed symptoms of this are a blistering or lifting of the coating at the surface of the component, although peel testing has revealed that this is not al
Electronics Forum | Wed Jun 03 15:22:12 EDT 1998 | Greg Curler
| | We have experienced poor adhesion of acrylic conformal coating to plastic bodied IC�s. The observed symptoms of this are a blistering or lifting of the coating at the surface of the component, although peel testing has revealed that this is not
Electronics Forum | Mon Oct 22 11:58:05 EDT 2012 | pbarton
I agree with Lou. Crepe paper is the way to go, MUCH cheaper and conforms much better to parts and surfaces being masked. Source items that have a rubber based adhesive and you will also avoid the conformal coating solvents leaching the masking adhes
Electronics Forum | Mon Jul 04 14:21:14 EDT 2011 | davef
The three primary causes for bubble generation in solvent-based coatings are: * Air entrapment * Solvent flash-off * Curing the coating too quickly Tell us more about your process including: * When you first notice the bubbles * Extent of the probl
Electronics Forum | Thu Dec 15 08:54:43 EST 2005 | Amol Kane
my 2 cents here --- Even though the boards need not be cleaned after SMT when using no clean flux, you will still have to clean them before conformal coating.....and most solvents used to clean boards before coating will take out the no clean flux re
Electronics Forum | Thu Jun 05 07:54:20 EDT 2008 | davef
You're correct, uV costs 1.7X solvent-based silicone. This high purchased material cost is counter balanced by uV requiring lower thickness due to higher solids and that 60 to 80% of a solvent coating is volitile and goes up the pipe between applicat
Electronics Forum | Fri Jul 23 08:58:11 EDT 2004 | RDC
I know Micro Care made a unit that removed conformal coating with compressed air and a solvent. But they no longer make it. Does anyone have the 2000 version of this unit and may want to sell it or know of another compressed air solvent solution, p
