Re: Mixing Cerakote H-series Colors?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Hired Gun</div><div class="ubbcode-body">Steve,
Why are you wanting to darken up a color? I would assume it's to match something else. Cerakote comes in so many shades I am always able to buy whatever I need to without resorting to experimenting. I gave you an accurate respectful response. If you don't agree then don't follow it. The pottery crack is out of line.
Ernie,
With respect to your experience and talent with Cerakote I gave the exact same cure schedule you did. So when you say it is correct and when I say it I am wrong? No where did I suggest going outside of recommended cure schedules.
What I stated was fact observed by me, other certified applicators and confirmed by being duplicated in house at NIC. Some of the colors will change shade depending on the currently approved cure schedules. Some darken, some lighten, some change color entirely when using the different published cure schedules. Some are stable to over 400 degrees. NIC is in the process of amending the cure schedules for certain colors.
I need consistent results. When I use the color samples people expect that to be what they get. When they don't it cost me time and money.
“Third, the H-Series is all made from the same ceramic compounds and base elements (same MSDS for all H-Series)”
If this is true please explain the difference in weight of the different colors. Have you ever wondered why not mix catalyst ratio by weight? I did, while I was there, in training and when we were in the lab where the base components are ground up and mixed it was shown to me that each color is made from totally different base elements and due to the weight differences the ratio's would not be consistent. 4 ounces of gunmetal gray are a lot less volume than 4 ounces of black. They use different amounts of each chemical to compensate to make the ratio come out by volume. Mixing them yourself undoes some of NIC's chemical engineers careful work.
As a certified applicator I am bound to stick to published and recommended NIC procedures in order to maintain my factory support. If I were to experiment it is understood I am on my own. </div></div>
Hired Gun,
There are differneces in weight between metalic and non-metalic colors, due to the elements needed for the metalic colors, but all are made from the same base compounds.
It has not been my experience that there will be perceptible color shift if baked within the guidlines in a proper curing oven, but there is clearly many variables that could account for your experinece being different than mine.
I called Brian, NIC's Preident over the weekend to double check that the facts in my post were correct and he verified that they are.
You are correct in that NIC does not as a general rule recommend applictors mix colors, but thir position is you can if you are careful and know what your doing. I also agree with you that given time to do so, it never hurts to call NIC and ask thier advice on a particular mix you were looking to do. Sometimes they may even have a color close to that which isnt on the list.
-Ernie