The proportion of components mixed together to achieve desired properties is called?

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Mixing ratios describe how much of each component to combine to get the desired coating properties. In automotive refinishing, you blend a resin or color with a hardener and often a reducer or activator in a specific proportion so the chemical reaction cures properly and the film achieves the right hardness, adhesion, gloss, and solvent resistance. Examples like 4:2:1 or 4:1:1 show how many parts of each component to mix, and following these exact proportions is essential because any deviation can lead to under- or over-cure, soft or brittle film, or adhesion problems.

Density ratio and viscosity ratio talk about physical properties of liquids, not how much of each component to mix, so they don’t convey the correct idea for preparation. Cure ratio isn’t a standard term for mixing components to achieve a proper cure.