MixByParts

1:1 in 250 mL

Precise mix & dilution math. Toggle by volume/weight, edit density, copy-to-label.

Exact amounts (pre-calculated)

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  • Resin125 mL by volume136.3 g
  • Hardener125 mL by volume121.3 g

Add 125 mL Resin and 125 mL Hardener to make 250 mL.

How to mix 1:1 in 250 mL

This calculator treats 1:1 as resin-to-hardener by volume and divides a 250 mL total accordingly. Use the manufacturer’s separate by-weight ratio when it provides one.

  1. Confirm that the manufacturer specifies four parts resin to one part hardener by volume.
  2. Measure the resin and hardener amounts shown in the Exact amounts card.
  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 1:1
16 oz24 oz32 oz1 gallon500 mL750 mL1 liter5 liters15 liters
Other ratios for 250 mL
2:13:14:15:1

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. Switch to "Mix by weight" to convert those fractions into gram targets using your provided densities.

1:1 in 250 mL – MixByParts