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Thread: Cleaning the Protective ECU coating

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Posts: 1-8 of 8
2008-05-19 08:39:28
#1
Cleaning the Protective ECU coating
How do you remove this stuff when installing a daughterboard? If you leave it on there it goes gooey when heated up with the iron and gunks it up, and i've tried all the chemicals i have that won't melt through the board and i can't seem to clean it very well.

I've tried nail polish remover (acetone), PCB cleaner spray, wax and grease remover, white spirits.

Some of them went a small way, but mostly they did not manage to get it off.

I can install without removing the coating but i figured it would be best if it was removed. Any tips? or am i perhaps not being aggressive enough with my application of the products?
2008-05-19 13:13:04
#2
try IPA, Acetone or even acrylic paint thinner. Use a thick brush to apply and then rag dipped in the stuff to wipe it away
2008-05-20 11:26:01
#3
Thanks, i'll give the paint thinner a try on the next one.

What is "IPA" ?
2008-05-23 00:27:27
#4
Try spraying a bit of brake cleaner on a rag or sock then rub the area that you want to remove the coating from. That's what I've always used and it works like a charm. Good luck.
2008-05-23 01:31:12
#5
Just use a solder sucker and a nozzle with a bit of thermal mass. I don't bother to wipe the board at all, the sucker just sucks it up. If theres a big glob on the top side I just slowly vacuum it up.

2008-05-23 11:30:53
#6
Originally Posted by Calum
Just use a solder sucker and a nozzle with a bit of thermal mass. I don't bother to wipe the board at all, the sucker just sucks it up. If theres a big glob on the top side I just slowly vacuum it up.



Dont we all wish we had a soldering / desoldering station.

All of our boards at work are conformal coated and it is a pain some times. Make sure you clean it up before you solder. I can cause bad / cold solder joints. I usually have a little scraper tool that i use to clear the excess off with. If you get it before you heat it up it will come off in chunks.
2008-06-05 10:26:59
#7
1Support
out of here
2008-06-05 16:23:58
#8
Originally Posted by Calum
Just use a solder sucker and a nozzle with a bit of thermal mass. I don't bother to wipe the board at all, the sucker just sucks it up. If theres a big glob on the top side I just slowly vacuum it up.


Calum, how do you suck the solder from inside the header holes?

I tried with a WELLER desoldering station but the diameter of the tip was way larger than the header holes and did not do much!

An dwhat exactly is "thermal mass"?

TIA
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