Mixed with cold water.
Mixed with hot water.
Microwaved (27 seconds).
Water with dusting of plaster particles.
Water with dusting of plaster particles pushed to base of water pool.
Water saturated with plaster particles.
Water supersaturated with plaster particles.
Water supersaturated with plaster particles (2nd test).
Plaster mixed with red wax, allowed to dry, wax melted with heat gun.
Trace with plaster applied inside.
Trace saturated with water, dusted with plaster particles.
Paper towel with plaster applied inside.
Paper towel with plaster applied outside.
Trace, saturated with water, plaster dust sprinkled on top.
Office paper with plaster applied inside.
Office paper with plaster applied outside.
Office paper, saturated with water, plaster dust sprinkled on top.
Paper napkin, saturated with water, plaster dust sprinkled on top.