gypsum powder for cornice
1)whiteness 90% above,
2)fineness of 120 mesh,
3)initial setting 7minutes, final setting 1

gypsum powder for cornice :

Whiteness is 90% above,

the intensity is 2.7mp above,

fineness of 120 mesh,

marked thick 75%,

Initial setting 7 minutes, Final setting for 15 minutes.