STMP (Sodium Trimetaphosphate)

Using STMP as a rheology modifier and flame retardant in plasterboard and drywall manufacture helps improve the workability, strength, and fire resistance of these products while being less toxic than traditional flame retardants like boric acid.

As a flame retardant, STMP releases phosphoric acid when exposed to heat, forming a protective layer that prevents the spread of flames. This helps improve the fire resistance of plasterboard and drywall products and can reduce the risk of building damage.

STMP is also utilized as an additive in gypsum board manufacturing to improve the strength and durability of the final product. It helps to reduce the amount of water needed in the manufacturing process, leading to a denser and stronger board.