EpoxyPlan
Project
Epoxy resin planner

Pour with a plan, not a guess.

Work out exactly how much epoxy your river table, mold or tabletop needs, how to split Part A and Part B, and when each layer can go down. Built on each maker's data sheet where one is published, otherwise its product page or FAQ, labeled under every product.

River table calculator Plan a deep pour
  • Free, no account needed
  • 35 products from 21 brands
  • Inches or metric
Calculators

Every number you need before you mix

All calculators are free and work on your phone in the shop. Your inputs stay on your device.

River & live-edge table

Measure the river width at stations along its length for a true volume, not a rough average.

Open calculator

Mold & casting

Rectangular, round or known-volume molds, minus wood blanks and objects you embed.

Open calculator

Tabletop flood coat

Area times thickness for each coat, with an optional seal coat and edges.

Open calculator

Mix ratio

Part A and Part B by volume and by weight, using each product's published ratio.

Open calculator

Staged deep-pour planner

Split a deep pour into safe layers with dates and times for each pour.

Plan your pours

Product specs

Compare max pour depth, ratios and cure times for 35 epoxies side by side.

Compare products
Data sheet first

The label and the data sheet don't always agree

Some product pages promise more than their own technical documents allow. Where a maker publishes a data sheet, EpoxyPlan uses its number, so your plan stays inside the manufacturer's limits. Where there is no data sheet, we use the maker's product page or FAQ and say so under the product.

TotalBoat ThickSet
2 in1/2 in

Headline says up to 2 in deep. The data sheet allows 1/2 in per layer for river tables.

MAS Deep Pour X
36 h5–7 days

Product page lists a 36 h cure. The instructions give 5–7 days to full cure.

Upstart Deep Pour
2 in1 1/2 in

Headline says 2 in pours. The FAQ says to limit larger projects to 1 1/2 in at a time.

Why it's different

Built around how epoxy actually fails

Most bad pours come down to process: the wrong ratio, too deep a layer, or the wrong temperature. EpoxyPlan checks for those.

  • Weight ratios per product2:1 by volume is not 2:1 by weight. EcoPoxy FlowCast is 2.3:1 by weight and FlowCast SPR is 2.5:1, though both are 2:1 by volume.
  • Real recoat windowsFathom wants at least 36 h between layers. Stone Coat Ultra Deep goes on at gel stage, 17–22 h. Your plan uses the right one.
  • River sections, not averagesEnter the width every 6, 10 or 12 in. We integrate the true shape and flag the widest point.
  • Batch and heat warningsPer-layer caps, minimum pours and pot life by batch size, from each maker. Pour bigger than a depth allows and the plan switches to the maker's large-pour limit.
Free unlock

Keep your projects and print your pour plan

Every calculator, every spec and your current plan are free to use. Sign up with your email and first name to unlock the extras. Marketing email is optional.

  • Save multiple projects
  • Printable pour plan sheets
  • Calendar file with pour times
  • Pour-day reminders and data-sheet change alerts by email (coming soon)

Takes 20 seconds. We never sell your email.

First pour?

Four things to get right before you mix

  • Match the temperatureKeep the shop, the wood and the epoxy in the product's range. Warm shops cure faster and hotter.
  • Seal the formSheathing or Tyvek tape on melamine, every seam sealed. A pinhole can drain a pour.
  • Measure the ratio exactlyNever adjust the ratio to change cure time. Use the product's own volume or weight ratio.
  • Gloves and eye protectionEven low-odor hardeners can cause skin allergies. Wear nitrile gloves and safety glasses every time.

Read the first pour checklist