[ltp] Coffee in X61

Ted Frater linux-thinkpad@linux-thinkpad.org
Mon, 07 Feb 2011 14:56:50 +0000

Hendrik-Jan Heins wrote:
> Ok, so it sounds like I should try to clean it again with alcohol.
> However, I am a bit wary of the fact that I think the issue is liquid
> between the sheets that make up the keyboard.
> I guess also with alcohol I run the risk that liquid stays lodged here.
> Does anyone know of a trick to get it out from between the plastic
> sheets wit hthe contacts on them?
> Thank you.
> Hendrik-Jan
> 2011/2/7 Leon Brokken <leon.brokken@med.lu.se>:
>> On 02/07/2011 01:10 PM, Martin Schuster (IFKL IT OS DS CD) wrote:
>>> On 02/07/2011 12:44 PM, Pedro Ribeiro wrote:
>>>> [...]
>>>> As mentioned, I rinsed it under the tap, and I dried it with a blow
>>>> dryer (de-ioniser switched on, don't worry).
>>>> It has been drying like that for about 3 to 4 hours.
>>>> But it is still acting up in such a way that I think there is water
>>>> between the plastic sheets.
>>> What about rinsing it with sth that evaporates easily? Alcohol e.g.;
>>> Acetone is most likely a bad idea :)
>> Isopropanol would be best.
>> Leon.
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Liquids creep between almost anything non adsorbent by capilliary 
action. so you have to reverse this process.
The sure way is to put in a vacumn chamber at a temperature say 50 Dec 
C, that will cause the liquid to boil out of the capilliary gaps as a 
vapour. The vacumn has to have a stronger pull on the liquid than the 
capilliary action holding it in.  It might be propitious to get a price 
for a replacement keyboard.
Something more risky would be to put it in an electric oven set to 70deg 
C for 4 hours.
hotter than that might distort the plastic keys and the contact membrane 
let alone the silicone rubber springs under the keys.