Hello . I am wondering if anyone has used copper tube instead of solid wire for any of the products, and if so has it made any difference?  

Hi, this weekend I started nano-coating copper wires and plates using the "cold caustic" method. I first made a caustic liquid using 60g NaOH, 15g KOH, 3 PET bottle necks, some pieces of aluminum foil, and 1 liter of boiled destilled water. After 2 hours the liquid had cooled down so I could use it. When I removed the lid from the PP box, I saw flakes of black dust in the liquid which had formed web-like structures which looked a bit like spider webs or a neural network in the brain. :-) Doe...