Electronics Forum: conformal coat underfill (Page 5 of 106)

Masking of PWBs prior to conformal coat

Electronics Forum | Thu Apr 20 09:53:25 EDT 2006 | samir

Amol, good call there. Silicone mask and silicone coatings are friendly with each other. This was 1995, and at the time, there were no silicone boots available on the market.

Need suggestions on conformal coat curing oven

Electronics Forum | Tue Apr 13 23:27:34 EDT 1999 | Mike Flori

I need to cure conformal coat on a 19" x 15" board. The material needs 7 - 10 minutes at 100deg C, but I have limited floorspace so I'm looking for an oven with about 36 inches heated length and 18 or more inch wide belt. The material we are consider

silicone conformal coat and electrical contacts

Electronics Forum | Wed Jan 31 17:01:34 EST 2007 | rw

I'm not that concerned about the solderability of the motor. Our customer is concerned about the outgassing of the conformal coat effecting the motor brushes. Silicone will break down into SiO2 and SiC will result from a spark between the brushes a

silicone conformal coat and electrical contacts

Electronics Forum | Tue Jan 30 14:12:12 EST 2007 | blnorman

We use nothing but silicones and have for at least the last 7 years. We don't have relays, but we do have motors. No issues with soldering, but our lines are constructed such that the last solder operation is a good distance from the coating or pot

Masking of PWBs prior to conformal coat

Electronics Forum | Wed Apr 19 15:44:39 EDT 2006 | choppy

I'd also say to be very careful about contamination espacialy with boots. Some companies use oily products on there boots so be careful.

silicone conformal coat and electrical contacts

Electronics Forum | Tue Jan 30 18:34:56 EST 2007 | realchunks

Hose and/or Dave, Please elaborate of how the silicone can affect soldering. Material itself or fumes?

silicone conformal coat and electrical contacts

Electronics Forum | Thu Feb 01 08:47:07 EST 2007 | davef

NASA is concerned about outgassing in high-vacuum environments. They select materials to minimize outgassing. http://outgassing.nasa.gov/og_desc.html

Masking of PWBs prior to conformal coat

Electronics Forum | Fri Apr 21 17:46:29 EDT 2006 | SD

First of all, do not use kapton tape! It tends to cause a dewetting effect around the tape. A call to Humiseal will explain why. There's not really a blanket answer to your question.... Removing cured liquid mask can often result in a fillet ef

silicone conformal coat and electrical contacts

Electronics Forum | Fri Jan 26 16:47:35 EST 2007 | electronhose

IMHO I would avoid sprayed silicones like the plague. They can travel around your facility and cause solder wetting issues that you will never know the root cause for. Also found this e-drive article on using silicones around motors and relays. Loo

silicone conformal coat and electrical contacts

Electronics Forum | Wed Jan 31 14:07:24 EST 2007 | electronhose

Material, fumes, cured or uncured, all are suspect. Silicone gets on an operator's hands, that operator handles components ( even a day or more later ) silicone is transferred to the solder connections = contamination. Process and workcell control


conformal coat underfill searches for Companies, Equipment, Machines, Suppliers & Information

Sell Your Used SMT & Test Equipment

High Throughput Reflow Oven
ISVI High Resolution Fast Speed Industrial Cameras

High Resolution Fast Speed Industrial Cameras.
SMT Machines

High Speed Precision In-Line SPI System - Mirtec MS-11
thru hole soldering and selective soldering needs

We offer SMT Nozzles, feeders and spare parts globally. Find out more
PCB Handling with CE

World's Best Reflow Oven Customizable for Unique Applications