In neutral putty formulations, pregelatinized starch is mainly used to improve the wet-mix state, including thickening, assisting water retention, enhancing early-stage tack, and adjusting application feel. In the case of ordinary pregelatinized starch, cassava pregelatinized starch and corn ...
Common problems with neutral putty in summer include insufficient water retention, peeling and curling, delamination during sanding, honeycombing, and pinholes. Although these problems appear different on the surface, their root causes are all related to moisture migration, particle packing, ...
After neutral wall putty is troweled onto a wall, yellowish-brown, reddish-brown, or dark-brown spots may appear on the surface. These spots are often directly judged as “rusting of the putty powder.” This judgment is not accurate. Putty itself is not a metallic material and does not corrode ...
“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 ...
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