Sewing & crafts
Resin casting material budget
Estimate mixed volume and component masses from supplied product data.
A clear answer. Here’s how.
Calculates rectangular or circular volume in cubic mm, converts to mL, adds waste and uses your mixed density to estimate mass. Splits mass using your manufacturer-supplied A:B ratio by mass. Ratios by volume must not be substituted. Does not prescribe a resin formulation, maximum pour thickness, cure temperature or handling procedure.
See a worked example
Worked example
A fixed demonstration, separate from the values you enter above.
- Mould footprint
- Rectangle
- Width / diameter (mm)
- 100
- Rectangle length (mm)
- 150
- Fill depth (mm)
- 5
- Mixed density (g/mL)
- 1.1
- Extra mixed volume (%)
- 10
- Component A mass ratio parts
- 2
- Component B mass ratio parts
- 1
Example result
- Mixed volume including waste (mL)
- 82.5
- Mixed mass from supplied density (g)
- 90.75
- Component A mass (g)
- 60.5
- Component B mass (g)
- 30.25
Dimensions in mm, density in g/mL. A:B is a manufacturer-supplied ratio by mass, not volume. This is a material budget; resin cure conditions and product handling depend on the manufacturer.