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Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Nah wrote ...
This is only true if the material has the slightest bit of moisture. If you live in texas and keep the deoxit as far away as posible, it'll be fine.
So by Antonio's point, if I use a toaster oven to volatize the liqiud water out of the circuit board as steam (300 F), then as per Proud Mary's point I wash them in acetone after soldering, my finger prints will be gone, is this a wise procedure Nah, anyone else?
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
Patrick wrote ...
Nah wrote ...
This is only true if the material has the slightest bit of moisture. If you live in texas and keep the deoxit as far away as posible, it'll be fine.
So by Antonio's point, if I use a toaster oven to volatize the liqiud water out of the circuit board as steam (300 F), then as per Proud Mary's point I wash them in acetone after soldering, my finger prints will be gone, is this a wise procedure Nah, anyone else?
I agree that they need rinsing, but am not too sure about acetone. PCB rinsing is a big subject about which I know very little, but I would have thought that dionized water containing a surfactant, and perhaps a complexing agent, might be more on the right lines. I can't see sweat electrolytes like sodium and potassium chloride dissolving in acetone, but you should have a look in the literature.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Proud Mary wrote ...
I agree that they need rinsing, but am not too sure about acetone. PCB rinsing is a big subject about which I know very little, but I would have thought that dionized water containing a surfactant, and perhaps a complexing agent, might be more on the right lines. I can't see sweat electrolytes like sodium and potassium chloride dissolving in acetone, but you should have a look in the literature.
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
Patrick wrote ...
Proud Mary wrote ...
I agree that they need rinsing, but am not too sure about acetone. PCB rinsing is a big subject about which I know very little, but I would have thought that dionized water containing a surfactant, and perhaps a complexing agent, might be more on the right lines. I can't see sweat electrolytes like sodium and potassium chloride dissolving in acetone, but you should have a look in the literature.
Im trying to avoid the water PM
My vanilla sponge has received the most generous praise, and if you don't like it, I'll come round and criticize your curtains.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Ash Small wrote ...
Patrick wrote ...
IsoPropanol or ethyl alcohol seem to be the recommended chemistry.
A decent vodka, eg blue Smirnoff (45% alcohol) is supposed to do the trick as well if you don't have IPA, plus you get to drink the rest of the bottle
(clear vodka, not an oily one)
Yes I thought of that too!!! but ill use the denatured pint from the hardware store from what my college professors say, its about 10% water, 10% methyl alcohol (to prevent drinking, tax evasion), then 80% ethyl alcohol. This should be cheaper then drinkable alcohol.
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
Patrick wrote ...
.Yes I thought of that too!!! but ill use the denatured pint from the hardware store from what my college professors say, its about 10% water, 10% methyl alcohol (to prevent drinking, tax evasion), then 80% ethyl alcohol. This should be cheaper then drinkable alcohol.
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Putting many diodes in series for a HV diode.
