Building Materials and Architectural Coatings
Jan 20,2026
HPMC
In putty, mortar, and self leveling materials, HPMC delays water evaporation through an efficient water locking mechanism, ensuring sufficient hydration of cement and improving bond strength and crack resistance. Its thermo reversible gel property (gel point 50 – 90 ℃) requires high gel temperature models in summer construction to avoid sudden thickening of the slurry. The dosage is usually 0.1% -0.5%, and excessive dosage can reduce the compressive strength of the hardened body.
HEC
As a non-ionic thickener, HEC can adjust the rheological properties in architectural coatings, prevent pigment settling, and improve coating uniformity and adhesion. Its temperature resistance is superior to CMC, suitable for wide temperature range construction environments, and its viscosity is stable within the pH range of 2-12, making it an ideal additive for high-performance interior wall paint.
Printing paste (synthetic thickener)
Although mainly used for textile printing and dyeing, some anionic synthetic thickeners (such as polyacrylic acid) have been extended to architectural coating systems to enhance the thixotropy and anti sagging properties of colorants. It can achieve the "shear thinning" behavior in coatings: the viscosity decreases during construction for easy brushing, and after standing, it recovers high viscosity to prevent dripping, while enhancing the clarity of the printed contour.
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Building Materials and Architectural Coatings
Oil drilling shale hydration expansion
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