MixByParts

3:1 epoxy mix for 1 liter

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

Exact amounts (pre-calculated)

Embed this calculator
  • Resin750 mL by volume
  • Hardener250 mL by volume

Add 750 mL Resin and 250 mL Hardener to make 1 L.

How to mix 3:1 in 1 liter

This calculator treats 3:1 as resin-to-hardener by volume and divides the 1 liter total accordingly. Use the manufacturer’s separate by-weight ratio when it provides one.

  1. Confirm that the exact product specifies 3:1 resin:hardener by volume. A ratio by weight can be different.
  2. Measure the displayed component amounts separately: 0.75 L Resin, 0.25 L Hardener.
  3. Combine and mix using the manufacturer’s timing, temperature, and safety instructions.

Accuracy tips

Resin and hardener densities can differ, so a volume ratio must not be assumed to be the same numeric ratio by weight. Use the exact product technical data.

Other containers for 3:1
500 mL16 oz24 oz32 oz1 gallon250 mL750 mL5 liters15 liters
Other ratios for 1 liter
4:11:12:15:1

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.