How to create a "minimalist" architectural coating formulation?

Interior coatings have the largest market share in the construction coatings market, especially economical interior coatings. These coatings are the most closely watched and competitive in the market and are the most cost- and price-sensitive products. How to continuously optimize formulations, especially in pursuit of optimal performance and cost balance, is the biggest challenge for chemists

. The "thin" formula, which uses multi-functional or composite components instead of the long list of raw materials in the original formula, is one of the most popular solutions.
the benefits of this scheme:
is like buying a bed with both storage functions, not only from the space to simple, carefully calculated is to save money and effort.
Today you are introduced to a product dedicated to creating a "minimalist" solution: a two-in-one wetting dispersant for building interior paint formulations - TEGO® Dispers 747 W, which combines dispersant and surfactant functionality.
01
two-in-one wetting dispersant introduction: TEGO® Dispers 747 W
TEGO® Dispers 747 W is an anion-type wetting dispersant, chemical composition is a co-concentration of high pigment affinity groups. Its stable way of pigment is the inductive resistance type, that is, combined with electrostectrulation rejection stability and spatial resistance stability, can provide long-lasting stability for the dispersion of pigment fillers in architectural coatings.
's formulation with TEGO® Dispers 747 W single additives, compared to common pyrethlor dispersants, saves surfactants from traditional formulations, while its efficient dispersion efficiency allows for lower additions than conventional dispersants, simplifying and obtaining comparable or even better coating performance.
we conducted targeted coating tests to evaluate the performance differences between simplified and commonly used formulations following the introduction of the 2-in-1 TEGO® Dispers 747 W.
02
Simplified Formula vs Common PVC Dispersant Formula
80% PVC PHEN latex paint formula is a common economical interior wall coating formula, in which the dispersant is added 0.45%, using TEGO ® Dispers 747 W is formulated without additional surfactants, while the formulation of common polycarbonate dispersants on the market, usually with 0.20% surfactants, we selected two polycarbonate dispersants common on the market for comparison testing.
testing formula
test results show that the introduction of two-in-one wetting dispersant simplified formula, the paint performance compared to the common formula:
1. Brush-resistant performance significantly improved
2. Thermal storage stability and freeze-thaw stability is equivalent
color acceptance performance is equivalent
taking into account the simplification of surfactant ingredients, the possibility of reduced emulsion dosage due to improved brushing performance, the possibility of reduced additions due to high dispersion efficiency, the use of
two-in-one wetting dispersants will show an advantage in the overall cost.
03
Paint Performance Test Comparison
1. Brush resistance
The use of surfactants in coating formulations using TEGO® Dispersion 747 W dispersants reduces the sensitivity of paint film to water and significantly improves paint film wash resistance. Compared to using TEGO® Dispers 747 W dispersants alone, the combination of common pyrate dispersants and surfactants is only about 60% resistant to washing.
left: TEGO® Dispersion 747 W
Right: Dispersant 1
s low HLB surfactant
Left: TEGO® Dispers 747 W
Right: Dispersant 1
s high HLB surfactant
Leo: TEGO® Dispers 747 W
right: Dispersant 2
plus high HLB surfactant
2. Thermal storage stability and freeze-thaw stability
tank coating experimental data show that: the use of TEGO® Dispers 747 W paint alone, compared with the use of the market with pyrethloride dispersants with surfactant paint, to obtain considerable coating performance, especially thermal storage stability and thawing stability.
test data for coatings in the tank
3. Paint color acceptance
add 3% carbon black, iron red and turquoise color paste to white paint for color acceptance assessment, using TEGO® Dispers 747 W paint, compared with the use of the market acetate dispersant with surfactant paint, to obtain considerable color acceptance performance.
03
Conclusion
Using TEGO® Dispers 747 W 2-in-1 dispersants, there is no need to add surfactants to the formulation, not only simplifying the coating formulation, reducing overall costs, but also reducing the sensitivity of the paint film to water, greatly improving the paint coating film wash resistance, is the best choice to improve coating performance and cost optimization.