Starch is gelatinized during the manufacturing process. Due to its hydrophilic nature, it functions by controlling the rate of water loss during drying of the board. Gelatinized starch migrates to the surface and controls the rate of crystallization of the gypsum, providing a strong bond between the gypsum and the liner.
1. Good Migration Behavior
2. Strong Water-Holding Capacity
3. Excellent Binding Power
4. Easily Cooked
Gyp Starch PB-100 is prepared by modification of corn starch, specially modified for use as a core binder in the production of plaster board. It forms a strong bond, keeping the paper attached to the gypsum core. It serves as an excellent migrating agent in the core of wallboard products.