Aqueous Coatings are Complex Blends Aqueous coatings are complex blends of materials with a typical formula consisting of a mixture of aqueous emulsions, blended with additives to improve properties and performance. These additives are commonly, small quantities of an amine, a plasticizer, waxes, a surfactant, coalescent aids, and anti-foam agents.
Understanding and Testing of Viscosity in Coatings Viscosity tells us how thick or thin a liquid is. Coating viscosity is the property of a fluid that causes it not to flow easily because of the resistance of its molecules. When we use coatings, we need to understand viscosity, because it is key to accurate application, […]
Viscosity Overview Viscosity is a measure of a fluid’s resistance to flow. It describes the internal friction of a moving fluid due to its molecular makeup. A high viscosity (thick) fluid resists motion because of high internal friction, while a low viscosity (thin) fluid flows readily because of low internal friction. Viscosity is measured because […]
Opening Aqueous Coatings Aqueous coatings may be thermoplastic or thermoset, emulsion or solution polymer blends. The major volatile component is water along with small percentages of other volatile items. Some of these, such as ammonia or amine can evaporate and accumulate in the headspace of a sealed container, therefore opening is best done in a […]