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Laminator recommendation needed for PCB transfer method.

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LateLesley:
@Wimberleytech,

The trick is not to use ferric chloride. A friend put me on to an idea of reuseable etching solution. I just googled an article for you, but you may find some more if you look. :)

https://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-etc/

As for disposal of used etchant, I can't help on that front, being unfamiliar with waste disposal systems/laws in america. Here in the UK we'd contact our local council for disposal advice. Maybe you have a similar thing at state level??

Wimberleytech:

--- Quote from: LateLesley on March 22, 2019, 10:13:08 pm ---@Wimberleytech,

https://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-etc/


--- End quote ---

Thanks.  I have muriatic acid and it has been on my list to try.  I have used vinegar and hydrogen perozxide as well...but it is slooooooow.  Right now, I dont have a good location for the muriatic acid technique where other tools can remain free from contamination.

I do so few boards...only in an emergency.

tautech:

--- Quote from: Wimberleytech on March 22, 2019, 10:24:30 pm ---
--- Quote from: LateLesley on March 22, 2019, 10:13:08 pm ---@Wimberleytech,

https://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-etc/


--- End quote ---

Thanks.  I have muriatic acid and it has been on my list to try.  I have used vinegar and hydrogen perozxide as well...but it is slooooooow.  Right now, I dont have a good location for the muriatic acid technique where other tools can remain free from contamination.

I do so few boards...only in an emergency.

--- End quote ---
Based on the Instructable webpage I too went down the track of changing to Cupric Chloride and offer a little doc containing info sourced online and some notes of materials used and their initial interactions.
Take care with this brew until you have it converted to a decent Cupric Chloride brew.

Do some searches in the forum as there's plenty of info available on etching with muriatic mixes and Cupric Chloride.

Jwillis:
Ferric Chloride is to hard to get around here and to hard to get rid of.
2 parts 3% Hydrogen Peroxide to 1 part 31.45% Muratic ( Hydrochloric ) Acid. 2:1 ratio is much faster than the 3:1 ratio .Always pour acid into base.
For 1 oz boards its about 10- to 20 min  and 2 oz boards can take about an hour.

The reaction with copper creates Cupric Chloride (Copper(II) chloride)and Cuprous Chloride (Copper(I)Chloride). This will appear as a green color in solution and in dry crystal .Cupic Chloride is soluble in water and turns blue in solution.Cuprous Chloride is not very soluble  in water and appears as white crystals . Both can be separated by pouring concentrated solution  or green dry crystal into water and left until Cupric Chloride crystals precipitate to the bottom. The blue Cupric Chloride solution can be use for copper electroplating.Or recover the copper by reducing the solution and adding aluminum.This will create an exothermic reaction so be careful i,it's going to get hot .The Cuprous Chloride can be used as a fugicide.

castingflame:
Well the good news is that my £17 (faulty) Ebay laminator was repaired with the heater switch from my old unit and a new fuse. Happy days. It makes a change that I get lucky!

Sent from my SM-N960F using Tapatalk

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