Stabilising Solution
Stabilising Solution is a low viscosity clear or slightly tinted oil based coating for consolidating powdery surfaces ready for overcoating with water or oil based paints. 
Sticker
Shaping of moulding produced by a wood plane or Sticker machine. 
https://www.youtube.com/watch?v=gxSOzfjcPHU
Stipple
Dabbing the surface with a soft brush (stippling brush), (can also be made of rubber) whilst the coating is wet, to remove all brush marks. Also when broken colour or textured effects are being created.
String
The two outer sections of a staircase where either one or both sides are fix to the adjoining walls
Surface Dry/Touch Dry
The initial setting of a wet film which although still soft can be handled without damage.
Tack Rag/Tack Cloth
Trade name
Fabric usually cheese cloth impregnated with a slow drying oil used to remove dust particles after a surface has been rubbed down.