In the paint formulation design, in addition to selecting the appropriate titanium dioxide grade, another key issue is how to determine the optimal use of titanium dioxide. This depends on the need for coating opacity but is also marketed by other factors such as PVC, wetting and dispersing, film thickness, solids content and the presence of other coloring pigments. For room temperature curing solvent-based white coatings, the titanium dioxide content can be selected from 350kg/1000L for high-quality coatings to 240kg/1000L for economical coatings when the PVC is 17.5% or the ratio of 0.75:1. The solid dosage is 70%~50%; for decorative latex paint, when PVC CPVC, the amount of titanium dioxide can be further reduced with the increase of dry hiding power. In some economical coating formulations, the amount of titanium dioxide can be reduced to 20kg/1000L. In high-rise building exterior wall coatings, the content of titanium dioxide can be reduced to a certain proportion, and the adhesion of the coating film can also be increased.
Powder coating formulation table reference (part by mass)
The data provided is based on lab reserach for your reference only, to the real pratical application please adjust accordingly.
|Promotes dicyandiamide and substituted dicyandiamide cured epoxy powder coatings formulation|
|Material||Promote dicyandiamide||Substituting dicyandiamide|
|Epoxy resin E-12||60||60|
|Precipitated barium sulfate||19.7||18.7|
|Acrylic resin cured epoxy powder coating formulation|
|Material||Formulation 1||Formulation 2||Formulation 3|
|Epon2102 Epoxy (Epoxy value 0.185)||346||99|
|Epon2042 Epoxy (Epoxy value 0.138)||297|
|KSS2681 Epoxy (Epoxy value 0.1)||495|
|SCX-817 Acrylic (60)||654||604||505|
|Modaflow Powder Ⅲ||15||15||15|