IMPORTANT NOTICE : Holiday Announcement
Please be informed that Prometheus Hobby will be closed for a public holiday from May 23, 2026, to June 1, 2026.
Our online store remains open, and you can continue to place your orders during this time.
All orders received during the holiday period will be processed and shipped in the order they were received, starting on June 1, 2026.
Thank you for your understanding and patience.
The Prometheus Hobby Team
Prometheus® Silver Clay 950 50g
Prometheus® Silver Clay 950 will give you the ability to design stronger and bendable jewels. It does not require activated carbon or multiple-steps firing. Just put your dried pieces into your kiln at room temperature on a kiln shelf and full ramp speed to 800°C/(1470°F) for 1 hour. That's all... You can take out your fired pieces while still hot. The shrinkage of Prometheus® Silver Clay 950 is 15%. You can hallmark your pieces as Sterling.
