Thank you very much, John Dach, for the explanation of your patina
torch. Once my old eyes registered that the address contained an "l"
not an ‘i’, I was able to look at your site (love the name, btw).
What a greatcollaboration you and Cynthia have in the bronze
sculptural work. Each onemust be such an undertaking!
My interest in patinas is at a smaller (jewellery) scale and in
thinner sheet copper (0.5mm or so) because I’m trying to use it in
conjunction with fold-forming. So far, I have been using an
oxy/propane Smith Little Torch with a #7 tip. The main problem for
me is to get interesting colour development (blues, greens, yellows)
and be able to stop at the desired look.
I have found that placing the sheet on fire brick or in an annealing
pan usually results in overshooting the desired color blend. Is that
because the brick/stone continues to heat the piece after I have
pulled the torch away?
There seemed to be a bit more control holding the piece in the air
with tongs, and it permitted faster quenching. But I still overshoot
the desired colour. It makes me think I may be heating too quickly?
Any comments about my method and perhaps intensity of heating, or
other tips would be greatly appreciated.