All new Putty-Block is ideal for boxing and beading impressions prior to pouring of any die material. When pressed into place, Putty-Block conforms tightly to the impression, closes open ends, and dams off any flow of liquids. Facial and posterior walls of impressions can be built up to permit easy, spill-free pouring. Releases cleanly from hardened die materials and impressions and is reusable. When molded into place, Putty-Block retains its shape, will not slump or run. Ready to use. Non-hazardous.

Quantity: 120 gram jar