What are u doing that a Mainboard is looking nice and clean after working on it ?

[Dozer]

Hi,

I still have problems to let the boards loking nice after cleaning.

I clean it in ultrasonic and then in alcohol.

after drying on the air most times when hold the board near window it looks like water damage board. there where was alcohol left is after drying a not nice trace like a sign of water damage.

I use a lot of time to brush and clean and drying but i am not happy with the result.

are there any hints? how do you do that ?

 

[2informaticos]

I hope you've used distilled, not tap water.
Also do not add alcohol.

 

[briancomputerdoctor]

I am using de-ionised water.

What do you mean by, do not add alcohol?

 

[2informaticos]

Some people use alcohol for UC, not recommended.

 

[briancomputerdoctor]

Some people use alcohol for UC, not recommended.

Agreed

 

[briancomputerdoctor]

After using the UC I give the motherboard an alcohol bath. I thought this might be causing the problem but have since dried some boards without the alcohol and have had same results with the white residue.