Pregelatinized starch is starch that has been pre-cooked with water and heat, then dried to form a powder that can thicken in cold water. It is available as a white, odourless and tasteless, moderately fine powder.
It also called hydrothermal modification of native starch. The raw material of starch may be maize, potato, wheat starches or blends. Compared with native starch, pregelatinised starch has improved functionality:
Academic Name: Pregelatinized Starch
HS Code: 3505 1000
CAS No.: 9005-25-8
Type: Chemical Auxiliary Agent
Appearance: white powder substance
Features: Binders, fillers or reinforcing agents
Applications: Gypsum, food, pulp, textile industry
1. Thickening and water retention: Pregelatinized starch has a good ability to thicken quickly and has a certain water retention；
2. Improve work-ability: Pregelatinized starch can improve the material’s operating performance, making the construction operation smoother, easier to touch;
3. Adhesive: Used as a briquette adhesive, a common interior wall putty powder, a gypsum-based putty powder, etc. in the construction industry to improve construction performance
Packed in 25 kg multi-layer paper sack with polyethylene intermediate layer and inner P.E. bag, 15MT/20’container. It is recommended that it be kept sealed and away from moisture. Do not expose it to direct sunlight or near fire sources.
Yes. Pre-gelatinized starch is widely used in gypsum plaster formulations to improve workability, reduce cracking, enhance water retention, and optimize setting behavior.
For detailed performance improvements and application guidelines, see our full article: How Pre-gelatinized Starch Enhances Gypsum Plaster Performance.
