Jesmonite AC100 pigment recipe calculator
Scale a tested AC100 colour recipe to your batch and get grams of each pigment.
How to use this calculator
- Choose whether your target includes pigment, then enter its mass.
- Set the combined loading and enter your tested colour proportions as mass parts.
- Calculate and weigh each colour. Use the linked AC100 tool to split the base + liquid amount.
Worked example
For 500 g base + liquid at 1.2% combined pigment, use 6 g pigment. A 3:1 yellow:red recipe needs 4.5 g yellow + 1.5 g red, giving 506 g finished mass. If 500 g instead means the finished mass, the same loading needs 500 ÷ 1.012 = 494.071… g base + liquid and 5.929… g combined pigment.
Questions about this calculation
Is the 2% cap per colour or for all colours combined?
It is the combined pigment addition relative to AC100 base + liquid mass. Three colours at 2% each would total 6% and exceed that limit. This tool first calculates the combined dose, then divides it among your colours.
Must colour recipe parts add to 100?
No. Parts are relative masses: 3:1, 75:25 and 0.75:0.25 all split the same combined pigment amount 75% and 25%. A recipe must contain at least one positive part.
Why is 2% pigment not 2% of the finished mass?
Adding 20 g pigment to 1,000 g base + liquid gives 1,020 g finished mass. The loading is 20 ÷ 1,000 = 2%, while pigment is about 1.961% of the finished mass. The target toggle changes what your target includes; it does not change the loading denominator.
Will the calculator predict a colour or scale drops?
It scales pigment mass, not colour appearance or drop count. Pigment strength and drop size vary. Reuse your tested pigment products and mass recipe, and make a sample when changing materials or scale.
Sources and measurement basis
Use the exact current instructions for your product, version and market. Review date: 16 October 2026.