Coating weight, higher opacity is increased, but to some constant opacity values not higher than this, which is the pigment's properties. White himself.
coating weight increased to a higher opacity, but at some point one has fixed the opacity to no higher than this, the properties of the white pigment itself.
Coating weight increased. There will be opacity higher, but at some point the opacity constant is not high, more, which is the property of a pigment. White.