Dirty blank pcb board

Frequently asked question on the subject of designing, creating, producing printed boards, veroboards or perfboads and on point-to-point construction techniques.
Locked
kin0
Posts: 19
Joined: 25 Sep 2010, 08:41

Post by kin0 »

Hay,
My dad bought me a blank pcb board and I wanted to make a pcb (first time) the problem is that it is real dirty. It also have some scratches on it. Here is some pics. If any one can give me an idea how to clean it. I tried with spirit, water and soap but nothing worked.
Oh and should I clean both sides or only the one which I transfer to?
Attachments
2010-11-27 11-00-25.390.jpg
2010-11-27 11-00-23.109.jpg
2010-11-27 11-00-16.250.jpg
2010-11-27 11-00-06.703.jpg
2010-11-27 10-59-18.234.jpg
2010-11-27 10-59-12.265.jpg

madbean

Post by madbean »

It's easy: use some 00 steel wool and polish it down (you can also use scotchbrite or fine sandpaper). First polish one direction, then the other. Repeat until it starts to shine up. Then clean thoroughly with Acetone (very important).

RnFR
Old Solderhand
Posts: 5138
Joined: 09 Jan 2008, 07:02
my favorite amplifier

Traynor YBA-III, Fender Super Six

Completed builds: custom fuzz.
Location: Inner Earth
Has thanked: 141 times
Been thanked: 137 times
Contact:

Post by RnFR »

I also caught a trick from an old ham dog that I have yet to try- lime away. I guess you spray it on and let it soak. Apparently, the corrossion comes right off.
"You've converted me to Cubic thinking. Where do I sign up for the newsletter? I need to learn more about how I can break free from ONEism Death Math." - Soulsonic

Blog-APOCALYPSE AUDIO

User avatar
lolbou
Old Solderhand
Posts: 2752
Joined: 18 Nov 2008, 22:38
Has thanked: 295 times
Been thanked: 189 times

Post by lolbou »

I would have tried some chorhydric acid (lightly diluted) to get rid of oxidized copper. Also check these scratches to be sure that the continuity is good...
- Are you a mod or a rocker?
- Uh, no, I'm a mocker.

User avatar
Duckman
Opamp Operator
Posts: 1519
Joined: 20 May 2009, 02:45
Has thanked: 311 times
Been thanked: 112 times

Post by Duckman »

:!: Your copper foil is very thiny, so be careful when you use abrasive methods :!:

User avatar
rocklander
Old Solderhand
Posts: 2890
Joined: 18 Apr 2008, 12:33
my favorite amplifier: my jansen bassman 50
Completed builds

rebote 2.5; supreaux; odie; heartthrob tremolo; ross phaser; dr. boogey; thor; baja black toast; slow gear attack, rebote, tri-vibe, small clone, little angel, magnus modulus, echo base, hex fuzz, big muff, 22/7.

Location: Rotorua, New Zealand
Has thanked: 1388 times
Been thanked: 229 times
Contact:

Post by rocklander »

I live in rotorua where sulphur often covers copper like this.. I just use isopropyl alcohol and a green scotch brite style scourer pad...
world's greatest tautologist ...in the world
Ronsonic wrote:...the lower the stakes the more vicious the combat.

kin0
Posts: 19
Joined: 25 Sep 2010, 08:41

Post by kin0 »

Okay, I cleaned it and it's pretty clean except a few stains (I think they are from water) that won't get off even then I used spirit. Any ideas?

RnFR
Old Solderhand
Posts: 5138
Joined: 09 Jan 2008, 07:02
my favorite amplifier

Traynor YBA-III, Fender Super Six

Completed builds: custom fuzz.
Location: Inner Earth
Has thanked: 141 times
Been thanked: 137 times
Contact:

Post by RnFR »

Time for the green scouring pad, then lots of rubbing alcohol.
"You've converted me to Cubic thinking. Where do I sign up for the newsletter? I need to learn more about how I can break free from ONEism Death Math." - Soulsonic

Blog-APOCALYPSE AUDIO

User avatar
DrNomis
Old Solderhand
Posts: 6896
Joined: 16 Jul 2009, 05:56
my favorite amplifier

Self-Built Valve Amp Head :)

Completed builds

Dallas Arbiter Fuzz Face,Tone Bender Professional Mk 3,Tone Bender 3-Knob,Baja BK Butler Tube Driver,Baja Real Tube Overdrive,Roger Mayer Octavia,EH Soul Preacher,Tech 21 XXL Distortion,MFOS Weird Sound Generator.

Location

Darwin,Northern Territory Australia

Has thanked: 99 times
Been thanked: 267 times

Post by DrNomis »

I just use a scouring pad as used to wash dishes,with some soapy water,rub the copper side of the PCB material with the scouring pad dipped in soapy water,keep going till the board is shiney,then rinse the board under a tap,then dry with paper toweling,I use toilet paper,it works a treat,once your circuit board is dry,put your artwork on the copper side,holding it in place with masking tape,and then use your usual method to transfer the artwork to the copper.... :)
Genius is not all about 99% perspiration, and 1% inspiration - sometimes the solution is staring you right in the face.-Frequencycentral.

Locked