Joaquim,
In a previous job, I was building electronic equipment for law enforcement, and was using conformal coating for saline moisture protection.
The product used was Humiseal 1B31, which is user friendly as it is available in spray can for low use.
Jean-Paul
--- In Homebrew_PCBs@yahoogroups.com, "James Hannon" <jmhannon@...> wrote:
>
> We use this product for MIL board here at work.http://www.humiseal.com/Datasheets/English/acrylics/1b31_english_tds.pdf
> I have never seen it fail even in our humidity testing.Jim Hannon
> http://www.fmtcs.com/web/jmhannon/
> 42,11.90N,91,39.26W
> WB0TXL
> -----Original Message-----
> From: "multidigital15" <jboavida@...>
> Sent 11/20/2009 3:42:32 AM
> To: Homebrew_PCBs@yahoogroups.com
> Subject: [Homebrew_PCBs] Coating: Acrylic or Silicone based?Hi,
> I have some PCB's in a place with a lot of moisture (basically the system is on the top of a small moutain around 1000 meters above sea level).
> Normally I use Kontak Chemie's Plastik 70 to protect my PCB's, but in this case it does not work. Yesterday in a preventive maintenance I had found that the PCB tracks are almost gone with corrosion.
> I need advice how to protect the PCB's in this environment. I had see that acrylic and silicone based coating products exist on the market. I guess silicone based are better for this applications, but I'm not sure. Can anyone advise some produts to better solve this problem?
> Thanks in advance
> Joaquim
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