Sheet
Sheet Casting button is made by a special centrifugal casting. Fully mixed Unsaturated Polyester Resin and other chemicals is poured into the rotating centrifugal drums (casting process). After sometime it will turn to be soft glue due to chemical reaction. Then cut into sheets. Put the sheets on punching machine to form different sizes of blanks. After the curing process, the state of punched blanks will turn into hard.
Sheet Casting buttons are producing by two types of Casting Drums: -
Undulation Drum:
Only Pearl Imitation buttons are casted by Undulation drums to show the undulation effect.
Plain Drum:
All types of Sheet buttons are casted by Plain Drum.
