Key plate.False Body
The thickness of a paint when opening a fresh tin of paint I,e.igh viscosity - this false body breaks down when stirred.
Finger Plate
A rectangular plate fixed close to the door latch to protect the surface from finger marks
First fix
First fix is normally considered to be after the shell of the building has been completed. Following this it involves Joinery and building work to roof, internal walls, floors and ceiling inserting all cables for electrical supply along with pipework for water supply before plastering. 
Method of Removing mill scale and old paint coatings from steelwork.