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Resin Volume For Mould Calculator

Work out resin volume for mould instantly with clear inputs, formula shown and shareable results.

About Resin Volume For Mould Calculator

Cavity volume in cubic centimetres equals millilitres, and the two parts are split by the mixing ratio so that A plus B equals the total. Epoxy ratios are chemically exact, so mixing by eye leaves an under-cured tacky surface that cannot be fixed after the fact.

Formulas

Cavity volume

ml = length x width x depth in centimetres

Part split

hardener = total / (ratio + 1); resin = total - hardener

Worked example

With the default values below, Resin Volume For Mould Calculator returns Total mixed volume needed of 100.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Mould cavity lengthminimum 0.1 cm
10 cm
Mould cavity widthminimum 0.1 cm
5 cm
Pour depthminimum 0.1 cm
2 cm
Parts of resin per part of hardenerminimum 0.1
2

Results

Total mixed volume needed
100.00 ml
Resin (part A)
66.67 ml
Hardener (part B)
33.33 ml
Approximate mixed weight
110.00 g

Step by step

  1. 1Values used
  2. 2Cavity volume
  3. 3Part split
  4. 4Total mixed volume needed= 100.00 ml
  5. 5Resin (part A)= 66.67 ml
  6. 6Hardener (part B)= 33.33 ml
  7. 7Approximate mixed weight= 110.00 g

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Resin Volume For Mould figure worked out?

ml = length x width x depth in centimetres. Cavity volume in cubic centimetres equals millilitres, and the two parts are split by the mixing ratio so that A plus B equals the total.

Why does this matter?

Epoxy ratios are chemically exact, so mixing by eye leaves an under-cured tacky surface that cannot be fixed after the fact.

What do I need to enter?

Enter mould cavity length, mould cavity width, pour depth, parts of resin per part of hardener. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.

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