dkraude
Well-Known Member
Hi Peter, Good to hear from you!Dig the electroplating man! That came out looking awesome! I've been playing with this lately, makes one feel like an alchemist.I've not had much luck getting a decent application of copper though. Are you using commercial products? (Caswell?)
I had purchased a small quantity copper sulphate solution from Caswell to experiment on a small part and realized that it was going to be too expensive to continue doing so for the larger parts. So I researched and discovered I could make it myself for a much more reasonable price.
A combination of Distilled Water (Local Grocery Store), Root Kill (Local Hardware Store), Sulfuric Acid (Local Auto Store), and Miralax (Local Pharmacy) You will also need some baking soda to neutralize your parts after the bath. Total cost of about $50 has produced me 3 gallons and I still have plenty of material to make more.
I have had successful results with this Recipe:
8 Liquid Cups Distilled Water
1 Dry Cup Copper Sulfate (Root Kill)
60 ml (Use a syringe) Sulfuric Acid (Battery Acid)
1 teaspoon Miralax
!!!!CAUTION!!!! (Use protective equipment - Gloves, Goggles, Respirator)

Hazards Of Copper Sulfate - Sciencing
Copper sulfate is an ionic compound composed of copper, sulfur, and oxygen. It is a widely used, very versatile molecule. The fiber industry uses it for creating synthetic fibers. In the metal industry copper sulfate is used in copper refining. It is also utilized in the mining industry, as well...

!!!!CAUTION!!!! (Use proper disposal methods after use)
In order to prepare your plastic parts to plate properly, I have tried different options:
Option 1: Mix my own graphite paint with India ink and Graphite (Not very consistent)
Option 2: Purchase MG Chemicals Total Ground Conductive Paint (Great results but time consuming application with a brush)
Option 3. (My preferred method) Purchase MG Chemicals Super Shield Nickel Conductive Spray Paint (Great Results with Easy application) Works for coating copper.
Cannot emphasize enough, the plating will adhere to the surface and not hide imperfections but accentuate them. Proper sanding and filling must be done prior to applying the conductive paint and performing the bath.