Pigment Loadings

Cement is a binder that must be covered with pigment particles to shift the cement color in various directions. It is that simple. The more we cover up the cement binder surface color with pigment particles, whether grey or white cement, the more saturated the color becomes.

Look at the color of the pigment powder itself. In general, this shows what a maximum loading will look like. Some pigments can be added at loadings up to 8% to reach this saturation stage. Other pigments, like the Part B Micro Color pigments, can be added at loadings as low as 1.0% saturation.

BlueMacro11L747

Blue Macro 11L747

The key parameter is the desired final target color - this determines which combination of pigments are required.

The following tips will save you time and effort when working with pigments. The difference in color between a 1% loading and a 2% loading is greater than the difference between a 5% loading and a 6% loading. Why? Because you are adding 100% more pigment particles between a 1% and 2% loading and only adding 20% more pigment particles between a 5% and 6% loading. It is very difficult to notice the color difference in a piece of concrete comparing a 5% and 6% loading, however the 1% and 2% will appear quite different.

To really push the color saturation boundary, two types of pigments must be used. The Macro Core Part A Pigments should be added at a fairly high loading level. The smaller Part B Micro Color pigments can then fill the gaps to further cover the cement binder.

An example: Cobalt Blue 11L636 is a very nice shade of Blue when added at a high loading of 7%. But if a deeper Blue shade is desired, Part B Micro Blue RS should be incorporated into the formula. Scale back the Cobalt Blue to 5.5% loading and then add 0.30% Micro Blue RS as a Part B. This will deepen the Blue color. A final step to push color boundary would be to also add Cinder/Micro Black 2311 as a Part B at 0.2 - 0.40% loading. This base formula can now be fine tuned in many different subtle Blue directions.

For other shades of Blue, switch out Cobalt Blue 11L636/11L747 with Cobalt Teal 535/11L848 at 5.50% loading and then add Micro Blue GS at 0.30 % loading. Subtle shading can be achieved with low loadings of Brown as we have described in other sections.

Additional deeper shades of pigment combinations can be achieved with:

Brick Red at 4% loading plus Micro Red/Micro Magenta at loadings up to 0.5%.
Spruce Green at 5% loading plus Micro Green at 0.3% (and then even Cinder/Micro Black 2311 at 0.2%).
Beige at 5% loading plus Cinder/Micro Black 2311 at loadings up to 0.5%.

The color combinations are truly endless.