obvara ceramics

Mason Stain Obvara Raku Ceramics - Round 2

I tried out finishing some burnished, Mason stained pottery with the obvara technique in my last workshop, but it turned out the obvara had a difficult time clinging onto the surfaces; I decided to try again with unburnished Mason stained ceramics.

I decided to do three bowls stained a very light pink, a stronger orange pastel, and a stronger lavender pastel. I think the results of those stains were extremely subtle. This was in part because the lavender pigmentation went partially fugitive, the orange is perhaps too akin in hue, and the pink was already barely there and also went fugitive. It’s also because I allowed them to go into the fermented yeast bath right out of the kiln instead of cooling off for a minute or two, and I’ve found that when the pottery is at its top temperature, the majority of the carbonization is usually quite dark. That obviously covers over any underlying stain, but it provides a fuller value range and in the areas where there is minimal carbonization, it leads to high contrast. They’re beautiful obvara bowls, regardless of whether the Mason stains had much impact!

Here is the very light pink:

Next, the orange (note that the lighter areas are a bit warmer!):

Finally, the lavender; interestingly despite the fugitive nature the one that is perhaps the most visible due to the coolness it contributes:

Mason Stained, Burnished Obvara Raku Pottery

At this most recent raku workshop I attended in late October 2025, I experimented with Mason stains in several ways. For the obvara, I did two burnished pieces with very light mason stains. I think it mostly worked well, but the obvara carbonization had a somewhat difficult time really gripping onto the surface, so I think next time I might not burnish and see how that goes.

Here is the first ceramic piece, a burnished oval bowl I did a large polka dot pastel pattern on with small amounts of teal and chartreuse Mason stains mixed into terra sigillata:

Here is the second, a burnished round bowl with a small amount of teal Mason stain mixed into terra sigillata:

Obvara Orbs & Bowl

I only fired four pieces with the obvara process this go-round, as I had run through a lot last time and I mostly wanted to learn the slip resist methods at this workshop. However, I wanted some obvara burnished pottery to compare to my previous unburnished works, and I’ve also decided my spherical handbuilt pots are a somewhat signature decorative form and so I wanted to have some obvara orbs. I did a smallish bowl as well.

The burnish was a mixed success with obvara - it delaminated in a few spots on two of the orbs during the dunking, which to my eye is kind of unsightly as the revealed clay layer beneath is bright white, so I color-matched and painted those in with acrylic. However, one orb and the bowl had no delamination accidents, and the resultant sheen on all four pieces is beautiful. Overall, I am happy with these and would be willing to burnish for obvara again.

Below are one photo of each of my three new obvara orbs and three photos of my new obvara bowl from my April 2024 Dakota Potters Supply workshop!