Advanced Epoxy Calculator
Formula Used
The calculator first finds project area from the selected shape.
Base volume in liters = Area m² × Depth m × 1000 × Coats
Adjusted volume = Base volume × (1 - Displacement percent ÷ 100)
Edge volume = Perimeter m × Edge height m × Edge thickness m × 1000 × Coats
Total epoxy = (Adjusted volume + Edge volume) × (1 + Waste percent ÷ 100)
Part A = Total epoxy × Part A ratio ÷ Total ratio
Part B = Total epoxy × Part B ratio ÷ Total ratio
Weight = Total epoxy liters × Mixed density
Cost = Total epoxy liters × Price per liter
How to Use This Calculator
- Select the shape that best matches your project.
- Enter the main dimensions using one length unit.
- Enter pour depth and choose the correct depth unit.
- Add the number of coats planned for the surface.
- Enter waste, density, mix ratio, price, and kit size.
- Enable edge coating when resin will cover the sides.
- Press calculate and review the result below the header.
- Download the CSV or PDF for records and estimates.
Example Data Table
| Project |
Shape |
Size |
Depth |
Waste |
Approximate mixed epoxy |
| Small art panel |
Rectangle |
40 cm × 30 cm |
3 mm |
10% |
0.40 L |
| Round table top |
Circle |
90 cm diameter |
5 mm |
12% |
3.56 L |
| Counter flood coat |
Rectangle |
200 cm × 60 cm |
2 mm |
10% |
2.64 L |
| River table pour |
Custom area |
0.35 m² river area |
25 mm |
15% |
10.06 L |
Liquid Glass Epoxy Planning Guide
Liquid glass epoxy gives wood, stone, and art projects a deep clear surface. It also needs careful planning. Small measuring errors can leave dry spots, soft areas, or costly leftover resin. This calculator helps estimate resin before mixing starts. It uses area, pour depth, edge coating, waste, density, and blend ratio. You can review liters, part amounts, weight, and expected cost in one place.
Why Accurate Volume Matters
Epoxy is usually mixed by volume or weight. The ratio must be followed closely. Extra hardener does not make a pour cure faster. It may leave a brittle or sticky finish. Too little hardener can stop curing. Correct volume also protects the project budget. Deep pours use far more resin than thin flood coats. A table river, counter layer, or bar top can change quickly with a small depth increase.
Project Measurements
Measure the longest usable length and width. For round work, measure the full diameter. For oval tops, measure the major and minor widths. Custom shapes need a reliable surface area. You can trace the shape on grid paper, use design software, or split the surface into simple shapes. Add edge coating when resin will flow over sides. Include a small waste percentage for cups, drips, bubbles, and leveling loss.
Depth And Waste Choices
Depth controls the final volume. A thin seal coat may be only one or two millimeters. A flood coat may be thicker. A casting pour may be much deeper. Always check the safe pour depth from the product label. Heat can build up in large pours. Waste is also normal. Beginners may need more waste allowance. Irregular wood slabs, knots, cracks, and bark voids often need extra resin.
Using The Result
Read the total mixed liters first. Then check part A and part B amounts. These values help you measure the resin and hardener correctly. Weight is useful when a supplier lists kit sizes by kilograms. Cost helps compare kit sizes before buying. The CSV and document downloads are useful for quoting, workshop notes, or customer records. Recheck all units before ordering materials. Save one printed copy near the mixing area. It reduces confusion when several people help during a pour day.
FAQs
1. What is liquid glass epoxy?
Liquid glass epoxy is a clear resin system used for glossy coatings, casting, tables, counters, and art. It cures into a hard surface when resin and hardener are mixed in the correct ratio.
2. How much waste should I add?
A waste allowance of 10% is common for simple flat pours. Use 15% or more for rough wood, cracks, live edges, first attempts, or large projects with many mixing containers.
3. Can I use this for deep pours?
Yes, but always check the product label for maximum safe pour depth. Deep pours can create heat during curing. Some systems are made for thin coatings only.
4. What does density mean here?
Density converts liquid volume into approximate weight. Many epoxy products are near 1.1 kg per liter, but the exact value can vary. Use the value from your supplier when available.
5. How do I calculate a river table?
Use custom area for the river gap. Measure or estimate the river surface area, then enter the planned depth. Add extra waste for cracks, knots, and uneven live edges.
6. Should I include edge coating?
Include edge coating when epoxy will flow over the sides. Enter the edge height and coating thickness. This adds side volume based on the project perimeter.
7. Is part A always resin?
Most kits label part A as resin and part B as hardener. Some brands may differ. Follow your product label and enter the ratio exactly as instructed.
8. Why are my results different from the kit label?
Labels may use rounded coverage values or assume a specific thickness. This calculator uses your exact area, depth, coats, edge settings, and waste percentage, so results may differ.