Hydroxypropyl Starch Ether (HPS) Wholesale

Hydroxypropyl starch ether (HPS) is a modified starch that is commonly used as a thickener, stabilizer, and emulsifier in a variety of cement or gypsum based mortar applications. It is produced by reacting natural starch, typically derived from corn or potato, with propylene oxide in the presence of an alkali catalyst.

The resulting hydroxypropyl starch ether has improved properties compared to natural starch, including increased solubility, stability, and viscosity. 

In the construction industry, hydroxypropyl starch ether (HPS) is commonly used as a cement additive to improve the workability, strength, and durability of cement-based materials. It is particularly useful in applications where high-performance concrete is required.

When added to cement, HPS acts as a water reducer, which reduces the amount of water required to maintain a workable consistency, while also increasing the strength and durability of the final product. This is because HPS acts as a binder between the cement particles, which improves the cohesion and adhesion of the cement paste.

HPS can also be used as a thickening agent in cement-based mortars and grouts, improving their adhesion and preventing sagging or slumping during application. Additionally, it can be used as a dispersant to reduce the viscosity of cement slurries, which can improve the pumping and placing of concrete.