Pre-gelatinized starch powder putty putty film can enhance, improve the adhesion of the putty with the grass roots, to improve the workability phase putty for exterior wall putty, interior wall putty performance requirements to be much lower. In terms of physical properties, generally as long as there is adequate bond strength and good resistance Scraping, sanding sex can be. However, the actual construction, Scraping large interior putty, Scraping and sanding are the two very important indicator. Both poor performance directly affects the use of putty. Scraping and sanding of the CMC and the binder is aquasorb pre-gelatinized starch (α- starch) plus the amount of the appropriateness of the decision, CMC plus a small amount of bad Scraping, plus large, good Scraping, but may cause dry slowly, grinding affects the next step; α- starch plus a small amount of bond is not enough, out of the powder, plus a large amount of powder can not afford, but well polished. Off the powder and good sanding is a contradiction, so use putty powder production sample test done before pre-gelatinized starch, with a manufacturer's product, a suitable proportion of experimental dosage, both to meet the performance requirements of putty powder and do not waste raw material cost savings. Pre-gelatinized starch in flour mainly from the adhesive putty role in preventing the powder out, because it's raw starch, so it is an environmentally friendly and economical adhesive use outlook is getting better.