• Construction Gypsum-board, Plasterboard and Drywall Rheology Additives

Modified Starches

• Using modified starches in plasterboard and drywall manufacture helps improve the workability, strength, and water resistance of these products while also providing a cost-effective and customizable solution for manufacturers.

  Modified starches derived from corn, tapioca, and wheat are commonly used as binders and rheology modifiers in plasterboard and drywall manufacture. These modified starches can improve the workability and strength of the gypsum core and the adhesion between the core and paper liners. Modified starches are often preferred over other binders and rheology modifiers due to their low cost, ease of use, and customization ability to meet specific product requirements. They can be added directly to the gypsum slurry during manufacturing and can be adjusted to control the slurry’s setting time, viscosity, and other properties.

  In addition to serving as binders and rheology modifiers, modified starches can also improve plasterboard and drywall products’ water resistance and sag resistance. They can help to prevent sagging or deformation of the board during installation or use, which can help to maintain the integrity of the finished product.