"Fun" With Those F*%&ing Stains

So several years ago while I was developing my "Slate" glaze, I was playing around with some other colours for my matte glaze as well. At the time, I tried a commercial stain called "Blackberry Wine" in my base glaze. I thought it was lovely but not quite what I was looking for at the time.
 

I added a bit of another stain called "Pansy Purple" to push the colour away from burgundy and more towards a dark wine colour. While the colour was exceptional, I lost all of my matte-ness, and shiny was definitely not the look I was after. (The photo doesn't really do the colour any justice, but here it is:)

 As usual, life got in the way and the colour tests got pushed to the back burner. The test tiles went into my huge box with 11 years worth of other test tiles and there it sat collecting dust until recently.

I am still interested in an eggplant coloured matte glaze for my Classic Collection and decided recently to revisit my Blackberry Wine stain. I mixed up a quick sample, based on that very first test as a starting point and was all excited.

Until I opened my kiln.

The colour had all but drained from my glaze and I was left with this rather anemic looking ugly gray. Certainly NOT what I was after.

Now let me explain a wee bit for those not so technically knowledgeable regarding the finer points of glaze chemistry: the stain that I am using to get the original colour uses chrome and tin. These are fickle fiends and require very specific glaze chemistry to pull off their colour magic - no zinc, fire under 1260'C, no magnesium in the glaze and lots of calcium. Check, check, check, and check for the matte glaze that I am currently using.

So what the fuck happened to my colour?!?

An excellent question and one which I have no answer to.

At first I thought maybe I could juggle the calcium in the glaze a bit - perhaps there was TOO MUCH so I bumped it down to the optimal range.

As you can see, the colour got even worse. At least the last time I was getting some speckles of wine colour. This time, nothing but an ugly, flat field of gray.

So I thought I could try adding some other stains to help boost the colour, like that Pansy Purple I tried before:

Or a Deep Crimson:

Better. But not the colour I'm after.

I even tried the Pansy again in a greater concentration:

While it's sorta lovely, there's still too much speckle there for my tastes and the amount of stain required to get this is horrendously high (16%).

So where does that leave me?
I have no flippin' idea.

I am currently at a loss as to why this particular glaze is behaving the way it is, and why it's changing SO FREAKING MUCH from test to test. I'm wondering if there's just too much kaolin in the glaze for the stains to truly come out? Except that I have a stone matte glaze with 5% Blackberry Wine in it and the colour shows up just fine. Or maybe there has been some sort of change to the ingredients that are in the base glaze that I am unaware of? Something coming from a new mine, with slightly different composition? After all, it makes no sense that a glaze that worked fine not three years ago is a complete disaster now. If anyone has any thoughts on this, feel free to post comments. I'm always open to insights.

In the mean time, I'll continue trying to get the colour I'm after. I'm presently trying a new base glaze so we'll see. These things never go as planned, and always seem to take waaaaaaay longer than I'd like. But so it is (sigh).

Seeing Red

My husband has been bitten with the glaze chemistry bug! Which is exciting because this means I have someone to get nerdy with in the glaze kitchen;)

We've been working together to create some electric fired, cone six, copper reds and are getting great results.

This is something we have both been toying with off and on (but mostly off) for the past 10 years. Iron reds always seemed too muddy and the copper reds in the electric kiln always seemed so elusive. We decided to try again on a whim, and it was one of those "what the hell" kind of moments in the glaze kitchen that led to the first results:

 

While this one came out mostly greenish (as one would expect from copper) we started getting some purples on the top, and where the three test glazes pooled in the center there was some shocking red.

 

The second test piece from that first firing, while turquoise on one side, the other side was definitely leaning towards red.  I honestly didn't think we'd get ANY interesting results out of our first coordinated attempt hunting copper red in an electric kiln so to say I was surprised is perhaps an understatement.

So next came how to smooth out that red colour from our second test piece. We needed to get rid of the blotches and push the red more to real red, and less pink. Here's what came out of the next firing:

The red COMPLETELY disappeared in the glaze test on the right, and the one on the top left went matte and was an interesting shade of dark wine. The bottom left was definitely getting closer. This gave us an idea of the direction we needed to focus in on. So...

Onwards and upwards! Here's the next batch of tests: 

 There's three different base glazes on this test piece. While they all came out red-ish, we decided to narrow our search down to one glaze recipe. We picked the red-est glaze and continued to play. At this point, we had narrowed down our testing to four different things within our glaze formula that seemed to be affecting our red. Here's what came out next:

Now I realize the images may be very difficult to discern on a computer screen, but I can assure you we were pleased with where things are headed. Here's some close ups of where we will focus our fine tuning even more:

The nerd in me loves this aspect of pottery! My background in science certainly comes in handy. And I'm not gonna lie, it's nice to have a partner in crime!

All Flocked Up

So my explorations in Damask have led me down several different avenues, but nothing has really stuck out as a "That's it!" kinda path. So I went back to my original inspiration, those stunning tone-on-tone and flocked Damask wallpapers.

             

I just sat and stared at them for a while. What exactly is it that I love about them? I am drawn to the use of colour in these wallpapers. Not only the subtle tone-on-tone in some that creates these stunning, quiet patterns, but the stark contrast in others that throw the patterns out in your face. I also love the variations in texture - shiny and smooth mixed with the fuzzy and soft. Which I guess kinda loops around to my feltware collection right now. And this is where it finally clicked...

 

This was my first attempt at flocking a pot. Unfortunately the images don't do the surface much justice. All of the black Damask pattern is soft and fuzzy. The piece itself came out pretty rough looking. The spacing of the pattern came out a little off, the glue did not adhere to the glazed surface well and the resist I was using did not lend itself to being wrapped around a curved surface. But I am DEFINITELY coming back to this! I am completely in love with it! There are bugs to work out of the process, but I think all the effort will pay off. For now, I wanted to work on the actual flocking process itself, and get in some practice so I headed over to a flat surface. Have a look at some tiles I did:

So much fun! (But labor intensive.) But so much fun! I definitely found what I was looking for in this sidebar I've been on and I'm excited to explore this avenue some more! Stay tuned!