Studying the stability of water-based architectural paint
A new study focuses on the investigation of the effect of the type of pigment/extender on the stability of high pigment volume concentration water-based architectural paint.
A new work elucidates the effect of type of pigment/extenders viz. titanium dioxide (TiO2), magnesium silicate (steatite), calcium carbonate, dolomite, precipitated sodium magnesium aluminosilicates, hydrated and calcined aluminum silicates (kaolin) when used alone or in combination in the paint dispersions on their sedimentation stability.
Test results
Test results show that the paint dispersions based on only TiO2, only hydrous kaolin and only precipitated sodium magnesium aluminosilicates are quite stable whereas the dispersions based on only magnesium silicates and only calcined kaolin are found to be unstable. Paint dispersions based on carbonate extenders show syneresis and soft settling which is easily mixable.
The study has been published in Journal of Coatings Technology and Research, Volume 19, May 2022.
