Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


Forums › Off topic › Water damaged pcb advice?


147 posts

Master Geek


#190740 11-Jan-2016 07:40
Send private message

I have a radar detector which was submerged in water for about 24 hours. It was turned off and disconnected from power at the time. I have fully  disassembled it, let it dry, cleaned with isopropy + cotton bud, cleaned with isopropyl + fine tooth brush to loosen remaining corrosion. It is looking fairly clean now.

What else can I do? Is there anything I can put on it to prevent corrosion? I thought about crc but think it might do more harm than good? 

On a side note while cleaning one side of the board the isopropyl seemed to part dissolve some sort of coating, like a lacquer which has now left a sticky residue what could this be?

Create new topic
Hmm, what to write...
1134 posts

Uber Geek

Trusted
Subscriber

  #1467308 11-Jan-2016 07:58
Send private message

The lacquer coating is exactly that and is designed to prevent corrosion long term. If you want a nice cheap replacement all you need do is spray the board with hair spray. This will also help retard any corrosion that has begun because of the dunking.

For this application don't use WD40. It will tend to evaporate in the heat of the car and you will get an oily film seeping out of the detector and on the display etc.




Matthew

1835 posts

Uber Geek

Trusted
Subscriber

  #1468193 12-Jan-2016 09:00
Send private message

You were fortunate that there was no power applied when it was dunked.

To be thoroughly dry, leave it in a hot water cabinet for a week. There may be residual moisture under the IC's, or in the connectors, inductors, etc.




My thoughts are no longer my own and is probably representative of our media-controlled government

 
 
 
 


1149 posts

Uber Geek


  #1468360 12-Jan-2016 12:13
Send private message

Option #1: Cheap: Transparent overcoat spray paint is about $17 in Bunnings (the one I used was non electroconductive, checked);
Option #2: Your girlfriend will kill you for that: "nail polish";


True story, eye witnessed fax myself, those were early days of smartphones in New Zealand, fax to the Telecom Dealership, quote:
"Dropped phone into the toilet, took out and put into microwave to dry it out, it is no longer working, need replacement ASAP", end of quote :-)

Create new topic



Twitter and LinkedIn »



Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Menulog change colours as parent company merges with Dutch food delivery service
Posted 2-Jul-2020 07:53

Techweek2020 goes digital to make it easier for Kiwis to connect and learn
Posted 2-Jul-2020 07:48

Catalyst Cloud launches new Solutions Hub to support their kiwi Partners and Customers
Posted 2-Jul-2020 07:44

Microsoft to help New Zealand job seekers acquire new digital skills needed for the COVID-19 economy
Posted 2-Jul-2020 07:41

Hewlett Packard Enterprise introduces new HPE GreenLake cloud services
Posted 24-Jun-2020 08:07

New cloud data protection services from Hewlett Packard Enterprise
Posted 24-Jun-2020 07:58

Hewlett Packard Enterprise unveils HPE Ezmeral, new software portfolio and brand
Posted 24-Jun-2020 07:10

Apple reveals new developer technologies to foster the next generation of apps
Posted 23-Jun-2020 15:30

Poly introduces solutions for Microsoft Teams Rooms
Posted 23-Jun-2020 15:14

Lenovo launches new ThinkPad P Series mobile workstations
Posted 23-Jun-2020 09:17

Lenovo brings Linux certification to ThinkPad and ThinkStation Workstation portfolio
Posted 23-Jun-2020 08:56

Apple introduces new features for iPhone iOS14 and iPadOS 14
Posted 23-Jun-2020 08:28

Apple announces Mac transition to Apple silicon
Posted 23-Jun-2020 08:18

OPPO A72 a top mid-tier smartphone
Posted 19-Jun-2020 18:02

D-Link A/NZ launches new smart AX1500 Wi-Fi 6 Router
Posted 19-Jun-2020 15:03


Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron


Updates »

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.