Pearl Grey Steel Clay is Now Available


Pearl Grey Steel is now available for sale from my online store.

The instruction manual is posted in the right-hand pane of this blog, along with the other manuals, as well as on the product page within the online store, linked above.

How is Pearl Grey Steel different from the regular steel clay?

The Pearl Grey Steel metal powder is silver-gray in color. It is very pliable and soft, and does not become grainy after being stored in the refrigerator, even after many weeks. It also leaves your hands clean.

The firing is done in one phase. The firing temperature is the same, but the ramp is slower. The firing requires holding at 1000°F/538°C for between 30 minutes and 1 hour before continuing to the sintering temperature. Firing time is less than 4 hours.

The fired clay lends itself to sanding and smoothing, which results in a pearl-gray color. Like White Bronze, it is not flexible and should not be bent or hammered.

Pearl Grey Steel is compatible with copper, bronze, and White Bronze. It can be fired with copper in the same piece. Sometimes a bronze-color halo is created at the border between the two metals, as shown in the photo above.

To combine Pearl Grey Steel with bronze and White Bronze, the steel has to be fired first.

To see more photos of Pearl Grey Steel jewelry, please see this posting.

I hope you enjoy it.

9 Responses to “Pearl Grey Steel Clay is Now Available”

  • Jim Perkins Says:

    I was wondering if your metal clays can be fired in the speed cone?

    Jim Perkins

  • Hadar Jacobson Says:


    Base metal clay, no matter which brand, cannot be fired in a kiln that does not have a digital controller. It may be able to fire very small pieces of copper.

  • Jim Perkins Says:

    Thanks. I recently purchased a Paragon kiln but I have been seeing ads for the speed cone and was just curious.

    Thanks Again

  • Stacey Johnson Says:

    Thanks Hadar, you are ahead of schedule on the release of the pearl grey steel. I can’t wait to try it. Thoroughly enjoyed your workshop in San Antonio and knew you were still working on releasing this new clay. Thanks again for your generosity!

  • Tamara Culp Says:

    I love the subtle gradations on the copper, Hadar. Gives a lot of dimension! I’m sure everyone is excited about the beautiful new clay.

  • jenny james Says:

    I had been firing hadar’s clay in a manual kiln for about a year and threw in the trash far more pieces than I succeeded with. They were either under-fired and crumbled or they melted into a puddle. I just rewired my kiln myself (very simple) and now have a digital controller.

  • anita leclercq Says:

    i do not understand what you mean when you say it is compatible with other metals as slong as you fire the steel first. Does that mean that you have to form the steel part of the design, then fire it, then add the other metals and then fire that? Please explain.

  • Hadar Says:


    That’s exactly what it means. The firing temperature of steel is too high to fire it with other metals (except for copper). So you need to fire it first, then add the other metals and re-fire. By “compatible” I mean that they will stick together and that there is no undesirable reaction between them, like between silver and bronze.

  • Jenny James Says:


    I have been firing the Pearl Grey Steel all week and have had every single piece fire beautifully. That is saying a lot for me because I have a poor track record with firing. I tend to deviate from the suggested firing schedule and it very often doesn’t work! HOWEVER, I have been very successfully firing PG Steel with a full speed ramp to 1880 without any hold time at a lower temp. I have been holding at 1880 for 2 1/2 hours. I have a top loader. The pieces are extremely hard, I cannot break them with pliers…

Leave a Reply