Using Copper Oxides in a Painting

It's nice to finally be abe to work outside. I started a new painting, inspired by the pine forest. In this painting, my challenge is to use homemade verdigris or malachite, both of which are copper oxides. Since those minerals require a highly potent ammonia (read: rank-stankerously filthy smell), it has to be done outside.

Mala is investigating the stink!

In case I ever want to do this again, I'm experimenting to see which treated copper plate provides the most pigment. Here are the coppers I prepared:

• immaculate plate, in other words, the control;
• engraved marks with a blade;
• bent and wrinkled;
• sanded with fine paper.

I made the sky over a few days. Right, now I'm working on getting a copper pine-needle carpet going for my landscape. If everything works out according to plan, the malachite will be sprinkled on top to give it more depth. 

While I'm waiting for the washes to dry, I varnished this piece of wood, and another miscellaneous object I found in the forest. It could be some sort of farm machine part, I don't know. You'll get to see it eventually. For now, I'm keeping it under wraps. But here's the wood. Yeah, definitely enjoy the wood. At least there's that.

CuO3

The Copper Patina Experiment

It's been about 24 hours since I sprayed the disgusting and incredibly noxious vinegar-ammonia solution onto the copper to test. And It looks like the medieval formula beats out modern chemistry. The Muriatic Acid, a pool cleaning chemical you can buy at any hardware store, has actually dissolved the top layer of copper before it started oxidizing, leaving it much cleaner looking at first, then kind of discoloured and blackish. That black patina is actually a different kind of rust happening on the copper—one that I want to avoid. The black oxide is what happens on pennies when you touch one with your grubby ball-scratching fingers.



What I want is the verdigris, the green tint. Although I now know it is possible, I have decided to avoid using a weathered copper for this painting in particular. I want the heart as shiny as possible. Next time I will try a nail polish resist with the patina I made. You could do some interesting stuff!

I poured the 2nd layer and now I'm waiting for it to cure.

The Circulatory System

So the image I want to work with is the circulatory system. I love the idea of the heart as a pump. Haloed around the pump are the lungs.

Here you can see the connections from the veins and arteries to capillaries. In my mind I see a wing. I'm really not sure why, but I'm a sucker for bending metals. These are mostly copper plate and guitar strings.

Detail of capillaries

I get a feeling this is going to be a heavy painting. with a bit more relief than any of the other resin cast paintings I've done in the past.




Here it is, sitting on the table waiting for its next coating. I always want to do it so soon, but this time I have to wait until my copper patina experiment has worked out.

The Patina

I am experimenting with different acids and oxidizing agents to see if I can give this copper plate a greenish-blue patina. Basically I'm trying to force the process of weathering which turns copper that nice Statue-of-Liberty colour into an overnight event. The right side is muriatic acid, into which the piece was dipped. It looks cleaner than the original, but maybe it takes some time.

The rest of the plate is a sprayed on agent I made from vinegar, salt and ammonia. (This is basically a medieval recipe for making malachite, a blueish tone) The mixture smells terrible, and literally put me out of the house for a few minutes as it vented, but it is looking better than the straight up acid. I'll check tomorrow and see if it is feasible or appropriate to weather the copper a bit.

The Curing Process

I separate the layers by pouring epoxy resin on top. It's a finicky process that needs to be done in a sealed room. Over the next 14 hours the hardener catalyses, giving off a bit of heat in the corner of the studio.






So now, while I'm waiting, I'm trying to catch wasps. It's the yellow jackets I'm interested in. If I can catch enough of them, I will definitely use them in the painting. I need at least 3 yellow ones. I have two so far, but I had to left one go since it was brown, not yellow. :(

Wish me luck!

The Fused Glass Experiment

At the end of the night, this is the first layer. I arranged some fused glass pieces as the first part of the composition.

Here are some close-ups of the glass. It's very smooth and flowy, which contrasts nicely with the rough epidermis I've been working on.

 You can see that I've added some gold washes as well, and the blue-black shard is impressive. It's all about shine over here in Graeme's world these days.

The right side negative space

The background almost looks like a map. I would love to do another one of these as a straight up fantasy map. So I will cast the first layer of resin tonight, which should bind everything together. It takes a long time to cure and needs a sealed room to work well.
 

My tool kit includes the beer!

The Copper Landscapes of Mars

So I've started staining the background with copper. There are some very nice unexpectant results. Yes, none of the results are having babies, much to the chagrin of their parents, yet they are results welcomed into the arms of their relieved boyfriends.

Following are some details of the coppery textures:

The background is almost done. The next step is to set upon my milk-crate of materials, which, as I mentioned, contains a magical bag filled with many spools of broken guitar strings. Perhaps a metaphor secreted away for many years. Perhaps not.

Magic beans!

Staining! Staining!

So I'm still staining away. The next picture is after a yellow stain. You can especially see it in the upper left corner. The background is still much to light, so I did another phthalo blue stain. 'Phthalo' clearly being one of the best words in the English language, by the way.

As it stands right now, with 4 stains over it, it's getting much closer to what I want.  I have the image I want to work with, but I'll keep it a secret for now, since the idea is still evolving. Like I said before, you got to keep that balance between intuition and planning.

I really like the drops of blue in the yellow area at the bottom.

The Making of a Painting: Part 1

Well, I haven't written anything here in a while. So here's to new beginnings!

PHASE 1: Organize your materials

After cleaning my brushes, I decide to give the ol' work table a good sponging. The assembled crew of ins-and-outs consists of: clay area to the left; an array of containers of various materials in states ranging from liquid to solid; 2 jars of 'sludge', which is basically a crude mixture of the residual acrylix accumulated between batches of making colours at the paint factory; the pallet and tubes on the right side of the table; a wooden board with spray colours; and the magical milk crate filled with all the metallic goodies I could scrounge, including, much to my amusement, a bag of broken guitar strings.

PHASE 2: The Sludge

The first step forward is covering up the first layer with something called 'sludge'. It's basically the run off end bits of the acrylic plastic they used as a matrix for artificial colours. So basically it's the Tim bits of the paint world. It's those coloured bits all thrown into a jar together, and sold as a sculptural medium.  It's thick, but not very cohesive—something like a foamy, butter-like texture.

I tend to work intuitively in general, but working in layers requires planning. It's like balancing between extroversion and introversion, not at all like interrupting someone at a party by saying: "Mark! Your crotch is on fire!" Nothing like that at all.

Yes, that is me throwing up the ol' devil's horns, moonlighting as the Shadow King. And yes, that is the puppy, Mala pouncing on something. She's a terror.

PHASE 3: Staining

Over the next few days, I will be staining the sludge in the primary colours. Hopefully the end result will be a much darker underpainting. I want there to be a lot of texture to support the sheets of metal I will be working with.

Check out the awesomeness above!