Paint mixing chart
Look up a 4:1 paint and hardener mix below, or build a printable chart with your product’s ratio and optional reducer. These charts use volume, not weight.
4:1 paint mixing chart — no reducer
Example: 4 parts paint to 1 part hardener, by volume. Each row starts from a desired finished mixture. Use only if it matches your product’s technical sheet.
| Finished mix (mL) | Paint (mL) | Hardener (mL) |
|---|---|---|
| 250 | 200 | 50 |
| 500 | 400 | 100 |
| 750 | 600 | 150 |
| 1,000 | 800 | 200 |
The finished amount includes paint and hardener. Adding reducer changes these quantities; its percentage must use the basis specified by your product.
Use another ratio, add reducer or make a printable chart ↓Build your own paint chart
Worked example
Arithmetic example, not a product recipe: with 4:1 paint:hardener and reducer at 10% of paint + hardener, 550 mL of desired finished mixture needs 400 mL paint, 100 mL hardener and 50 mL reducer. If 550 mL were measured paint instead, it would need 137.5 mL hardener and 68.75 mL reducer, making about 756.25 mL total.
Questions about this calculation
Does 4:1 plus 10% reducer mean 4:1:0.1?
No. A percentage needs a stated basis. With 400 mL paint and 100 mL hardener, 10% of paint means 40 mL reducer; 10% of paint plus hardener means 50 mL reducer. Use the basis in your exact technical sheet.
Is the batch size paint or the finished mixture?
You choose this explicitly above. A desired finished mixture includes paint, hardener and any reducer. Measured paint is the paint alone, so adding the other ingredients increases the total volume.
Can I use a weight ratio or a reducer percentage of the final mixture?
This chart supports volume ratios and reducer added as a percentage of paint alone or paint plus hardener. A weight ratio needs matching weight instructions or verified ingredient densities. A reducer percentage of the final mixture uses a different formula and is not supported here.
Can I use decimal commas in the chart?
Yes. Separate batch amounts with semicolons, such as 250,5; 500,5. A comma is treated as a decimal separator, not as a separator between batches.
Sources and measurement basis
Use the exact current instructions for your product, version and market. Review date: 16 October 2026.