Milliput Super black is a resilient, non-sticky, sculpting putty with great handling. Different than Green stuff putty, which is gummy and sticky.
Each package contains 2 bars, one of which is the hardening agent. Mix an equal part of each bar to start, and it will harding in 90 minutes. Hardening process can be slowed by putting mixed putty into the freezer.
This putty is carvable, sandable, drillable, and sculptable. Heat resistant up to 130 Celsius.