Electronics Forum | Thu Mar 24 15:54:43 EDT 2011 | davef
You're correct. There's no point in conformal coating a board that you intend to pot. We're aware of no IPC [or IPCish] standards or guidelines for potting or encapsulation. We'd guess that materials and / or equipment suppliers would be the best pl
Electronics Forum | Tue Mar 29 10:47:31 EDT 2011 | frcdave
I agree with Davef, there is no point in conformal coating the assembly before potting. I am also not aware of any IPC standard for potting or encapsulation. If you would like to discuss equipment for potting/ encapsulation, we would be happy to d
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 Apr 05 10:06:31 EDT 2011 | markhoch
I would look into Low Pressure Overmolding for this application. Seems like it would be a good fit and would seem to be far less costly. Check out: http://moldmanmachines.com/ I have no stake in the above company, but I have researched the process a
Electronics Forum | Thu Mar 24 17:24:18 EDT 2011 | kgerry
Hi Could any one please provide the name of companies doing solder dross analysis. Is there any standard kits available to take sample from solder baths. Thanks in advance for your help. Kgerry
Electronics Forum | Fri Mar 25 12:27:17 EDT 2011 | blnorman
In a previous life, we would send samples to our bar solder supplier and they would provide analysis. For contaminants, ICP (inductively coupled plasma) is a method we also used to determine composition. Google labs that have ICP capabilities.
Electronics Forum | Thu Mar 24 18:16:24 EDT 2011 | bandjwet
Dear SMTNetters: Does anyone have a good method for determining the solderability of leaded high power resistors? We currently are using Dip and Look and they always pass yet solderability issues remain... Thanks! BWET
Electronics Forum | Sat Mar 26 02:38:07 EDT 2011 | evans1001
Had an issue with spindle 2 not coming down and picking parts up, then it was but not placing the part. The other 3 spindles were working fine. Changed the head on the machine but stil had the same issues. Anyone with any ideas. Cheers
Electronics Forum | Mon Mar 28 06:08:22 EDT 2011 | lisalau
I am a greenhand in SMT field,could you pls help to give me a definition of what IPC9850 and MNVC are? Your help would be highly appreciated!
Electronics Forum | Tue Mar 29 15:19:57 EDT 2011 | davef
IPC-9850. Surface Mount. Placement Equipment. http://www.ipc.org/TOC/IPC-9850.pdf MNVC. Multi-Nozzle Vision Centering [???]
