Each of my color recipes indicates at which percentage it is used relative to your total casting mass.
For example, for a 2% recipe: If the total casting mass is 140 g, consisting of 100 g powder + 40 g liquid, then the dry pigment mix would be 2.8 g.
Jesmonite® AC100 Formula
When using Jesmonite® AC100, measure the needed casting mass according to this formula:
- Measure the volume of your mold by filling it fully with water
- Divide the volume by 2 = This will be your Liquid weight
- Multiply the liquid weight by 2.5 = This will be your Powder weight
- Combine the liquid and powder to get the total Casting Mass weight
Quick Example:
- Mold volume: 100ml water
- Liquid weight: 100ml ÷ 2 = 50g liquid
- Powder weight: 50g × 2.5 = 125g powder
- Total casting mass: 50g + 125g = 175g
Other Materials
When using a different carrier (acrylic gypsum, plaster, cement, etc.), follow the instructions on the packaging to measure the materials.
⚡ Want to save tons of time measuring everything?
Download my all-inclusive Jesmonite spreadsheet!
This spreadsheet precisely calculates the amount of Jesmonite AC100 powder, liquid, filler, and pigment needed for your mold’s volume and product recipe. Simply measure the mold’s volume by filling it with water, and the sheet will handle the rest.
What the Spreadsheet Calculates:
Filler Loads:
- 0%, 5%, 10%, 15%, 20%, and 25%
What’s a filler? It’s usually your terrazzo! Alternatively, you can use sand, mother of pearl chips, or other decorative fillers.
Pigment Loads:
- 1%, 2%, 3%, and 4%
Color Recipe Integration:
- The spreadsheet is invaluable for my color recipes, as it calculates all parts based on the total pigment load in grams
Stop doing math every time you want to create something beautiful. Let the spreadsheet handle the calculations while you focus on the artistry.