2K Paint Mix Ratio

The hardener and reducer to add and the total batch from a ratio like 4:1 or 4:1:1 and a measured base-paint volume.

Run the calculator

Example

You enter

You get

Details, formula, and sources

in fluid ounces and milliliters. Ratios are by volume.

Hardener = base x hardener parts / paint parts; reducer = base x reducer parts / paint parts; total = base + hardener + reducer; mL = oz x 29.5735295625.

Paint manufacturer technical data sheet (mix ratio by volume; by name); 29.5735295625 mL per US fluid ounce.

Mix ratios free on the product technical data sheet.

Estimate. AHJ and licensed professional govern.

Field names used by the API: paint_volume_oz, part_paint, part_hardener, part_reducer, hardener_oz, total_oz, total_ml

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