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best way to protect copper pcb traces
best way to protect copper pcb traces
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Old 8th March 2020, 12:09 PM   #1
jamesfeline is offline jamesfeline  United Kingdom
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Default best way to protect copper pcb traces

Hello

I have some pure copper pcbs that I have made .. just need some advice, i like the polished copper look. Can I laquer the pcb then solder at a later date ? do PCB lacquers allow soldering afterwards ? any recommendations ? I was planning to polish the PCB so nice and shiney then spray with a good PCB lacquer like this as a example Electrolube CPL200H Clear Protective Lacquer 200ml | Rapid Online
then solder later ... or should I populate the pcb then lacquer afterwards ??

you thoughts

regards

Last edited by jamesfeline; 8th March 2020 at 12:19 PM.
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Old 8th March 2020, 12:19 PM   #2
amplidude is online now amplidude  Denmark
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Why not do it the other way around, polish it, then solder all parts, then clean it thoroughly, and as last step laquer it, seems to me to be best option
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Old 8th March 2020, 01:57 PM   #3
jamesfeline is offline jamesfeline  United Kingdom
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Quote:
Originally Posted by amplidude View Post
Why not do it the other way around, polish it, then solder all parts, then clean it thoroughly, and as last step laquer it, seems to me to be best option
Yep was thinking that. .. but sometimes takes me a while to complete the PCB but I suppose I could carefully rap the board in a airtight bag for some protection...
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Old 8th March 2020, 02:02 PM   #4
Mooly is offline Mooly  United Kingdom
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best way to protect copper pcb traces
The clear protective lacquer is the stuff I use. It may say on the tin 'do not shake' which I assume is to prevent small bubbles forming.

I use the stuff by spraying it into an egg cup and then brushing it on quite liberally.

It dries super glossy and clear and can be soldered through if needed. If you use it in cold damp conditions then the quick initial evaporation of the solvents will cause condensation and a bloom... I suppose all of which is why I end up brushing it on. Fresh out of the tin it is very free flowing and will cover well with a kiddies tiny brush... just pour it on the board and let it flow.
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Old 8th March 2020, 02:04 PM   #5
thimios is offline thimios  Greece
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To protect my diy pcb always i use solder.
The same that i use for parts soldering.
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Old 8th March 2020, 02:23 PM   #6
jamesfeline is offline jamesfeline  United Kingdom
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Quote:
Originally Posted by Mooly View Post
The clear protective lacquer is the stuff I use. It may say on the tin 'do not shake' which I assume is to prevent small bubbles forming.

I use the stuff by spraying it into an egg cup and then brushing it on quite liberally.

It dries super glossy and clear and can be soldered through if needed. If you use it in cold damp conditions then the quick initial evaporation of the solvents will cause condensation and a bloom... I suppose all of which is why I end up brushing it on. Fresh out of the tin it is very free flowing and will cover well with a kiddies tiny brush... just pour it on the board and let it flow.
Thatís a good idea
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Old 8th March 2020, 09:51 PM   #7
MAAC0 is offline MAAC0  Portugal
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Plastic70 from Kontactchemie is what I use and the soldering iron melts it when soldering.
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Old 8th March 2020, 10:17 PM   #8
DaveG is offline DaveG  United States
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You can wipe them with cramolin or deoxit.
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