Product Review: EZ960™ Sterling

25 and 50g large“EZ960™ Sterling” is a new clay launching this week from Cool Tools!  It is another invention by Bill Struve.  Cool Tools and Bill worked together on this new clay and decided to name it “EZ960™ Sterling” which is an easy name to remember. However, if they had asked for my opinion on the name I would have called it, “Easy-Wonderful-Strong-Beautiful-The Metal Clay You’ve Only Dreamed About”.  Maybe that name wouldn’t fit on the labels?

Valerie Bealle EZ960 braceletI feel very privileged to have been in on the testing of this new clay.  Full-disclosure: I love it.

This sterling silver metal clay is open shelf fired in a kiln. Other comparable brands require mixing or firing in activated carbon. This hybrid sterling clay is .960 when fired and can be hallmarked Sterling Silver. Sterling Silver is the industry standard for jewelry and is known for its strength that can withstand everyday wear and tear.

Lisel Rings Group EZ960

Cool Tools, offers 25g and 50g packages http://www.cooltools.us/EZ960-Sterling-Silver-Clay-p/ezs-025-p.htm

Here is my review of the new clay:
WET FORM: Moisture content and workability
:As I waited several weeks to test the clay it may have lost some of its plasticity while in the temporary wrapping. I added a few drops of water and worked it in and found the clay to be beautifully smooth, easy to roll, it picks up texture nicely and joins are solid. (My release agent was olive oil.)

DRY FORM: How was the flexibility, was it easy to carve, sand, join? What an amazing clay to carve! There are no “tears” at the end of a push with a carving tool. Clean edges!

Firing:No blistering or cracking. In my first firing I forgot to support a ring and so it slumped. I was curious about the clay and hammered the ring round and straight–it could take the abuse! All items out of the kiln have the satisfying “clink” of sintered metal and they are a matt grey. Some pieces I hammered and others I tumbled.

Shrinkage:Ring #1-1.5mm thick wet clay, wet clay size: 11.5, dry 10.5 and after firing 9.5,
Ring #2-1.5 mm thick wet clay, wet clay size: 12.5, dry 12 after firing 10.

Rings warped in the firing, as I forgot to support them properly, hammering them brought them back into shape without increasing the size.

Finishing:I hammered some pieces directly out of the kiln and then I tumbled them to finish the polishing. Rings were polished further with a 3m polishing brush and patinaed with LOS.

“Cool” Video to check out with Lisel Crowley. http://www.cooltools.us/EZ960-Sterling-Adjustable-Ring-s/2468.htm

540704_577388125607677_846842341_nJeannette Froese LeBlanc is the editor of Creative Fire and is an avid jewellery designer.  She has worked in metal clay since it first came on the market. You can find her jewellery online: www.SassyandStella.com.

13 Responses to “Product Review: EZ960™ Sterling”

  1. Can you fire sterling pre-made settings with this new clay? I have read that typically sterling requires pre-sintering, but there are several websites claiming if you are using “sterling” clay rather than fine silver clay you can fire the two without pre-sintering the pre made piece.

  2. I really like your blog.. very nice colors & theme.
    Did you design this website yourself or did you hire
    someone to do it for you? Plz respond as I’m looking to construct my own blog and would like to find
    out where u got this from. thanks

    • Hi Kim,
      Are you asking if I fired all of the rings in the same firing? The one that was deformed was in the first firing. I didn’t take a measurement of it before firing so it is not in the list of ring shrinkage measurements. (It is my favourite ring now though…I love the fact that I could hammer it back into shape! This is a strong sterling silver metal clay!)

      The two rings I measured before firing and after were in the same firing. ~Jeannette

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