In a putty system, fillers usually account for a high proportion of the formulation. The gel material needs to organize dispersed powder particles into a stable structure, while also ensuring smooth application, resistance to surface powdering, and sufficient internal cohesion.
“Neutral putty,” “821 putty,” and “ordinary interior wall putty” are not standard classifications within the same category. Neutral putty is more of a market term formed according to the acidity/alkalinity or cementitious system characteristics of the formulation. 821 putty is more of a market ...
危险品化学品经营许可证（带存储）