Pre-gelatinized starch in a putty powder application, building a stage pre-gelatinized starch, Introduction: This product is a natural starch as raw material, obtained by modifying obtained fine powder, has many important properties, include: solution thickening; good water-soluble; suspension or glue stability; protective colloid action; film-forming; water retention; adhesive properties; non-toxic, tasteless, biocompatibility; thixotropy. In the construction industry (insulation mortar, putty powder, tile adhesive, building mortar, etc.) can improve the performance of the construction, while production costs are reduced by about 10 to 20%. 1, a very good rapid thickening power; a certain water retention; 2, the amount of small, very low addition amount that can achieve a high effect; 3, enhance the ability of anti-falling material; 4, improve material handling property make the operation more smooth; 5, extend the opening hours of the two materials, technical indicators: Item Index Appearance white powder, a water-soluble paste group, has good toughness pasting sticky inflation performance can sink into a translucent paste in cold water Viscosity ≥300 (5% aqueous solution) PH value of 7 (2% aqueous solution) fineness of 100 Ash ≤0.4 three application areas: high-viscosity pre-gelatinized starch-based products can be used as cement, gypsum based products admixtures. Admixture with other buildings have good compatibility. And hydroxypropyl methyl cellulose ethers used in conjunction, can play a thickening effect, promoting the internal structure has better crack resistance, improve workability, can significantly reduce the amount of hydroxypropyl methylcellulose added. High viscosity pre-gelatinized starch in the building materials industry has its wide range of uses, the amount is large, can be used as a retarder, insurance agent, thickener and binder. In ordinary dry mortar, exterior insulation mortar, self-leveling mortar, dry adhesive plaster, tile adhesive dry mortar, high-performance buildings putty, interior wall putty crack, waterproof dry mortar, plaster, scratch padding agent , thin seams and other materials play an important role in their water retention stucco system, robustness, and construction of retarding have an important role. Fourth, the reference formulation interior wall putty powder formulations Flying powder putty powder formula 1: 1 Flying powder 700 kg: 1000 kg 2 white cement: 300 kg 2 pre-gelatinized starch: 5-6 kg of three pre-gelatinized starch: 5- 6 kg 3 CMC: 8-10 kg 4 HPMC: 4 公斤 43, will join powder materials and additives in proportion to the dry mix evenly, add cold water mixing evenly construction use. The above parameters are for reference only, in order to secure the construction materials should be based on local circumstances, we must first rigorous feasibility test, in order to achieve the best results. 4. If reconcile after a good, if found not open scratch in the construction, pre-gelatinized starch should be reduced and the amount of CMC added. On the contrary, it should increase the pre-gelatinized starch and CMC addition. If reconcile well after construction hold together tightly, because mixing evenly, you should also check the quality of ash calcium. If the ash calcium quality problems, but also leads to poor water resistance. Fourth, packaging, transport and storage of packaging: paper-plastic bag lined with plastic film bag, net weight 25kg. Transportation: Available all kinds of transport vehicles, keep dry, and with the rain, waterproof, anti-moisture facility; not toxic, harmful, abnormal odor mix other goods; prohibited rain, water quality and other pollution contamination. Storage: Store in a dry, ventilated, cool place. Storage period: one year.