dyes and tints
Miller states that using
a chemical stain should also involve using dyes and
tints, because the two work hand in hand. Dyes and
tints provide color variations not available in chemical
stains, can be used to treat areas that did not stain
well, or can lighten the stain color.
Dyes are not chemically reactive with concrete, and
their appearance is translucent. They can be organic
or inorganic and diluted with either water or solvents.
Stain colors are more intense if stain is applied
soon after concrete has been placed. Jones says dyes
are azo-chromium coloring agents fine enough to penetrate
concrete surfaces, and they can create bright colors
not possible with stain, such as reds and yellows.
Some dyes are UV-resist-ant, but those that aren’t
can be coated with UV-resistant sealers to make them
Universal tints, often available in paint stores,
are opaque, and the colors produced can mask deficiencies
left by acid stains. Tints can also lighten the color
of the stained surface.
continue – Concrete Stain Cleanup