MixByParts

2:1 paint mix for 1 gallon

Precise mix and dilution math, with optional density-derived gram targets and copy-to-label tools.

Exact amounts (pre-calculated)

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  • Paint85.3 fl oz by volume
  • Activator42.7 fl oz by volume

Add 85.3 fl oz Paint and 42.7 fl oz Activator to make 1 US gal.

How to mix 2:1 in 1 gallon

This calculator preloads a 2:1 dilution for a total batch of 1 gallon. Confirm the total volume, then follow the component amounts surfaced above. Optional gram targets are derived from these volumes after you enter the exact product densities.

  1. Confirm that the exact paint system specifies 2:1 paint:activator by volume.
  2. Measure each displayed component separately: 0.6667 US gal Paint, 0.3333 US gal Activator.
  3. Combine the paint and activator only as directed by the exact product technical sheet. Do not top up with water or extra solvent to reach a fill line.

Accuracy tips

Need to batch multiple containers? Duplicate this preset, change the container size, and use the copyable mix line for fast relabelling. Only use gram targets after entering densities from the exact product data.

Other containers for 2:1
1 liter250 mL16 oz24 oz32 oz500 mL750 mL5 liters15 liters
Other ratios for 1 gallon
4:1:13:1:13:2:15:1:11.3:1

How this is calculated

For a ratio of a:b, each part is a/(a+b) and b/(a+b) of the total. PPM mode uses 1 ppm ≈ 1 mg/L for aqueous solutions. Show gram targets to convert those calculated volumes using the densities you provide; the ratio itself remains volume-based.