Maybe your best bet would be to purchase a small 110 Volt arc welding unit. They have variable outputs and will certainly zap any material you might want to coat. Although the manufactures don't recommend this... using the on and off switch will provide the control needed to get started. The output of most machines is 50 to 100 volts and 50 to 150 amps... this will do for most needs. I too am putting a small coating unit together and having the same problems. Let me know of your progress and I will do the same.
Bill Lang, Stockton , CA
