PMC Flex silver clay is the most moisture-retaining among PMC series and can give extended working time. It is suitable for beginners using metal clay or to make the complicate design such as braiding, twisting etc.
You can refer how to make the braided free ring (See the product picture) on here: https://www.youtube.com/watch?v=KmY1iAA_Eoc
Purity of the fired clay: 99.9% Shrinkage during firing: 10% to 15% (It can vary depends on the firing temperature.)
<Firing condition> 850C (1560F) x 10 mins (For making ring) 800C (1470F) x 5 mins 700C (1290F) x 10 mins 600C (1110F) x 30 mins
<Note of caution> It needs heat treatment (180℃ for 30 mins) to make hardened dried clay.