Medical skill check: 40
A fine powder that when used in conjunction with Bandaged, will encase a limb in a Plaster Cast, in order to heal Fractures. Gypsum will not work if you have not used Bandages or Plastiseal beforehand, and will do nothing for skull, rib and neck fractures.
For each plaster cast applied to the player, they will get a 20% movement speed debuff. Plaster casts can be removed with Trauma Shears.
Application success:
Turns the applied bandage into a Plaster Cast, which will slowly heal arm and leg fractures encased in it.
Application failure:
Deletes the gypsum and does nothing.