Claydium is a reinforced air-drying modelling clay that is available in White and Terracotta in a 500g block. It is similar to Newclay™ but smoother in use and, while still malleable, will yield a stronger and harder final dried material.
Claydium articles should be finished in the same way as objects made from Newclay, i.e. decorated with a good quality ceramic or acrylic paint and finished with a suitable acrylic varnish.