Saturday, April 30, 2011

How to make a bronze bas relief award plaque honoring Bob Barker...Part 3

My plaque came back from the foundry.
Lee chopped off the sprues, welded a hanger on the back (just in case it's ever taken from its frame), and gave it a once over in the sandblast cabinet.

sandblasted bronze, ready for patina

After that, it's time for me to create the patina (being sure to take all the necessary safety precautions, of course).
I gave it a soak in sulphurated potash (just a sprinkle, mixed in water) to turn it black.
Then I scrubbed it back with a scotch brite pad, and then some very fine steel wool.

After that, I heated it with a weed burning torch and sprayed on a mix of ferric nitrate and cupric nitrate, then waxed it while hot.

A quick buffing after it cooled was all that was needed before popping it into a its frame.

Next stop: Mercy For Animals.
Final destination: Bob Barker!

I've cast only two of this version (one to be given to Bob, and one for me to keep), but when I get a bunch of my non-award version cast (which has a cloudy sky instead of award lettering and will be sent to galleries) I'll post pics of that too.

This has been both an honor and a great deal of fun to make.
Thanks Mercy For Animals!

And thanks Lee for helping me get it done in time!


Click these links to visit my website... - Sculpture that loves you back
or my Etsy store, CritterVille

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