The Epoxy Pigment Calculator helps artisans, contractors, and DIY enthusiasts determine the precise amount of pigment needed to color an epoxy mixture. By calculating pigment weight based on total epoxy mass and desired color intensity, it ensures consistent tints without guesswork. Whether you’re creating resin art, river tables, or protective coatings, this tool streamlines your workflow and reduces waste.
Formula of Epoxy Pigment Calculator
Pigment Amount = Total Epoxy Weight × Pigment Ratio
Detailed Breakdown
Pigment Amount: The weight of pigment required (in grams or ounces)
Total Epoxy Weight: Combined weight of resin and hardener (in grams or ounces)
Pigment Ratio: Percentage of pigment by weight (expressed as decimal, e.g., 0.02 for 2%)
Common pigment ratios:
- Light tinting: 0.5–1% (0.005–0.01)
- Medium color: 2–3% (0.02–0.03)
- Opaque/intense color: 4–5% (0.04–0.05)
Adjust ratio based on pigment strength and desired opacity.
Quick Reference Table
| Pigment Ratio | Light Tint (g per 1000 g epoxy) | Medium Color (g per 1000 g) | Opaque Color (g per 1000 g) |
|---|---|---|---|
| 0.005 (0.5%) | 5 | — | — |
| 0.01 (1%) | 10 | — | — |
| 0.02 (2%) | — | 20 | — |
| 0.03 (3%) | — | 30 | — |
| 0.04 (4%) | — | — | 40 |
| 0.05 (5%) | — | — | 50 |
Use this table to quickly choose pigment weights for every kilogram of epoxy.
Example of Epoxy Pigment Calculator
If you mix 500 g of resin with 250 g of hardener (total 750 g epoxy) and want a medium color at 3%:
Pigment Amount = 750 g × 0.03 = 22.5 g
Measure 22.5 g of pigment and blend thoroughly into the mixed epoxy to achieve a consistent medium tint.
Most Common FAQs
Weight measurement ensures accuracy, since pigments and epoxy have different densities. Use a scale for best results.
Start at the lower end of the ratio range (e.g., 2%) and test. You can always add more pigment, but you cannot remove excess once mixed.
High pigment loading (>5%) can inhibit curing. Follow manufacturer guidelines and conduct small trials before full-scale mixing.