Resin Shop Australia

Resin Volume Calculator

How to use the Epoxy Resin Calculator

  • Quick Calc: fastest for rectangular/coating areas. Auto-picks the best resin system, waste %, and safe max pour per layer.
  • Pro Calc: adds River (with void factor) and Cylinder shapes, independent layer limits, and the same kit suggestions—use when geometry is irregular or you need precise control.

  1. Choose your project purpose

    • Auto-selects the best resin system, sensible waste %, and safe max pour per layer.
    • Examples: Surface flood coat → Low Viscosity (2:1). River table → Deep Pour (3:1). Potting → High/Mid Viscosity (2:1).

  2. What “viscosity” means (quick guide)

    • Low Viscosity (2:1): flows like warm syrup; best for flood coats, sealing, laminating, pebble/stone top-coats.
    • Mid Viscosity (2:1): honey-like body; balances flow and build—great for timber void fill, fibreglass lamination, and concrete roll/flow coats.
    • High Viscosity (2:1): thick, sag-resistant; stays where you put it—ideal for potting, fillets, bonding and structural repairs.
    • Deep Pour (3:1): thin but slow-curing for thick casts (e.g., river tables); not suited to very thin coats.

  3. Select your units

    • mm (most precise), cm, or in. You can switch anytime.

  4. Confirm resin system (optional)

    • Purpose sets this automatically—you can still change to Low/Mid/High (2:1), Deep Pour (3:1), or Art & craft coating (2:1).
    • Mix ratio boxes update automatically; this calculator works by volume.

  5. Enter dimensions

    • Length × Width × Depth/Coat thickness.
    • For irregular “river” voids, use average width (or use the Pro tab’s River shape later).

  6. Waste allowance (%)

    • Adds margin for mixing losses, edge soak, pinholes, and small voids.
    • Guidance: Flood coats 8–12%, Deep pours 12–18%, Potting 5–10%.

  7. Mix ratio (A:B) — by volume

    • Pre-filled from the selected system; only change if your label says otherwise.
    • Don’t use weight here—resin & hardener densities differ.

  8. Max pour / layer (mm)

    • Used to suggest number of layers and approx thickness per layer.
    • Always check the product TDS for safe layer depth & temperature limits.

  9. Read your results

    • Total volume (mL & L) already includes your waste allowance.
    • Layers suggested shows passes and ~thickness per layer.
    • Mix breakdown gives Part A / Part B volumes (by volume).
    • Suggested kits are clickable sizes that cover your need—choose exact or the next size up.

  10. Save it

    • Use Copy summary or Email me my result to keep your numbers.

Resin Calculator

By Resin Shop Australia
Epoxy Resin Calculator Resin Shop • AU
Quick estimates for beginners + advanced controls for pros. Choose a purpose to auto-pick the best system and defaults.

Basics

Sets sensible defaults (system, waste %, pour per layer). You can still change anything.

Results

Total volume: 0 mL (0.000 L)
Includes waste allowance.
Layers suggested: 1 × ~0 mm
Based on max pour / layer. Check TDS.
Mix breakdown (total, by volume):
Part A: 0 mL • Part B: 0 mL
Suggested kits (this system):
Email me my result
Disclaimer: Estimates only. Always check the product TDS for safe layer thickness, pot life, and cure conditions.

Advanced Inputs

Use 0.80–0.90 to allow for timber encroachment & irregular edges.

Results

Total volume: 0 mL (0.000 L)
Includes waste allowance.
Layers suggested: 1 × ~0 mm
Adjust with your TDS guidance.
Mix breakdown (total, by volume):
Part A: 0 mL • Part B: 0 mL
Suggested kits (this system):
Email me my result
© Resin Shop

What should I pick?

Project / purpose Recommended resin system Why it’s a good fit
Surface flood coat Low Viscosity (2:1) Thin, self-levelling, crystal clear; ideal for ~1–2 mm coats.
Pebble & stone flooring Low Viscosity (2:1) Excellent wet-out & penetration; smooth top-coat over aggregate.
Concrete flooring (roll/flow coat) Mid Viscosity (2:1) More body for build and fewer roller marks; great for roll/flow coats.
Timber void fill & knots Mid Viscosity (2:1) Better gap-filling than Low Viscosity with controlled flow.
Fibreglass lamination Mid Viscosity (2:1) Good wet-out without running on verticals.
Electrical potting / structural repairs High Viscosity (2:1) Thicker, sag-resistant; bonds, fillets, potting.
Boat transom rebuild High Viscosity (2:1) Structural strength with lower run-off.
River table (casting) Deep Pour (3:1, slow cure) Low exotherm for thick layers (e.g. up to ~40 mm).
Art & craft coating Low Viscosity (2:1) Ultra-clear, self-levelling finish for artwork & benchtops.
Not sure / general Coating → Low   Fill/repair → Mid/High Smooth coats → Low. Gap-fill/build → Mid. Structural/potting → High.

Why these kits?

  • Under ~15 L: we round up to the next single kit (0.75, 1.5, 3, 6, 12, 15 L) so you don’t under-buy.
  • Bigger jobs: we build with a large base pack (typically 60 L, otherwise 30 L) plus one top-up kit to cover the remainder.
  • *30 L may appear as bottles or cube pack—we’ll show an alternate link when both are available.
  • **Coverage shown already includes your waste allowance; always check the product TDS for safe layer depth and cure conditions.

Note for floors: keep moving expansion joints flexible (use a suitable joint sealant). Use epoxy mortars only for non-moving control joints or static cracks.

Important notes & disclaimer

  • This tool gives volume estimates. Always follow the product TDS for max pour per layer, pot life, cure times, and temperature limits.
  • Mixing is by volume unless your label/TDS explicitly specifies a weight ratio.

  1. Scope & responsibility

    • Results are guidance only and assume typical conditions; final project outcomes remain the user’s responsibility.
    • Quick Calc assumes rectangular/coating geometry; Pro shapes refine geometry but are still estimates.

  2. Pour limits & temperature

    • Respect your resin’s max pour per layer and ambient/substrate temperature windows from the TDS.
    • Warmer conditions accelerate reaction/exotherm; cooler conditions slow cure and may cause amine blush.

  3. Waste allowance & irregularities

    • Choose a waste % to cover mixing losses, edge soak, pinholes, and unknown voids.
    • Porous timber and “river” cavities can consume more resin—add margin if your project is critical.

  4. Mix basis & ratio accuracy

    • Use the correct basis (volume vs weight) and the exact ratio (e.g., 2:1, 3:1, 1:1).
    • Measure accurately with graduated containers; never alter ratio to “speed up” or “slow down” cure.

  5. Deep pour heat management

    • Large pours build heat. Use slow-cure systems, respect layer limits, and allow cooling time between layers.
    • Increase airflow; avoid enclosed, hot spaces that trap heat.

  6. Substrate prep & bubbles

    • Seal porous surfaces before casting to minimise bubbles and soak-in.
    • If using heat guns/torches, keep moving, low, and brief—avoid overheating or scorching.

  7. Recoats & sanding

    • Follow recoat windows. If outside the window, scuff-sand and clean to ensure adhesion.

  8. Kit suggestions

    • Suggested kits combine sizes to cover your required litres. Choose the exact match or the next size up.
    • Unopened returns/changes follow our returns policy.

  9. Safety

    • Wear gloves and eye protection; ensure ventilation. A respirator is recommended in poorly ventilated areas.
    • Keep out of reach of children and pets. Refer to the product SDS for first-aid information.

  10. Need help?

    • Unsure which system to use? Contact us with your dimensions, substrate, and project goals.