Composites, Fiberglass & Advanced Materials worked example

Resin Mix Ratio with resin base amount of 250 parts: a worked example

What does the result look like when resin base amount reaches 250 parts? The full calculation is worked below with real intermediate numbers. checking resin, hardener, catalyst, or promoter proportion

The inputs for this scenario

  • Resin base amount: 250 parts (raised for this scenario; the documented default is 100)
  • Hardener, catalyst, or additive amount: 28 parts (unchanged)
  • Mix-ratio reporting conversion: 1 x (unchanged)

Working through the calculation

  • Applying the documented formula (Resin Mix Ratio = resin base weight or volume รท hardener, catalyst, or additive amount) to the inputs above produces each figure below.
  • At this operating point the engine returns 8.93 x for resin mix ratio, the number this scenario is built around.
  • At this operating point the engine returns 8.93 value for raw ratio.
  • At this operating point the engine returns 1 x for conversion factor.
  • At this operating point the engine returns 28 value for hardener, catalyst, or additive amount.

How this compares with the baseline

  • Against the tool's baseline example, where resin base amount sits at 100 parts and the headline result is 3.57 x, this scenario comes in 150% above the baseline at 8.93 x.
  • A figure at this level is achievable when resin base amount is genuinely sustained, not just peaked for a shift. It is a proportion only; it does not validate that the data-sheet ratio is by weight versus by volume, and using the wrong basis will produce a correctly computed but wrong mix.

Results at a glance

  • resin mix ratio: 8.93 x (headline result)
  • Raw ratio: 8.93 value
  • Conversion factor: 1 x
  • hardener, catalyst, or additive amount: 28 value

Run it with your numbers

  • Every input above is editable in the live Resin Mix Ratio calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.