I did a little experiment comparing a blue flux product with
Cupronil. I thought the results were interesting and so am passing
I was first introduced to Cupronil flux by Beth Rosengard. She uses
it exclusively and showed me her steps for incorporating it into her
solder process. I was already using a blue flux product from
Progress Tools and thought it might be essentially the same so Beth
gave me a sample of Cupronil to try out.
What a difference! Both products look almost exactly the same in
color and appear to have a similar water-like consistency, however
they respond quite differently to heat and general use.
The Progress Blue Flux creates large bubbles as it heats while the
Cupronil makes a nicer, soft white powder surface which is much
better for placing and controlling the solder. Also, there was less
jumping of solder with Cupronil and my paint brush stayed clean,
whereas the Blue Flux caused my brush to constantly be filled with
stiff white flux similar to the paste flux. With Cupronil, I can
easily pick up solder with the damp brush, but it is difficult to do
this with the Blue Flux because the brush becomes so stiff and bulky.
Anyway, I am a convert. It is a pleasure to use. I understand from
Beth that Lee Epperson is an Orchid contributor, so…thanks for the