Craft & Design
Resin Project Cost
Epoxy resin volume, Part A/B split, and total cost — with deep-pour exotherm warning for 1:1 mixes over 2 inches.
Resin Project Cost
Inputs
20-25% typical — cups, sticks, drips, test pours
Each layer re-pours the full volume
Results
Total resin needed
23.9 oz · 678 g (with waste)
590 ml
Part A
339 g
295 ml
Part B
339 g
295 ml
Finished volume
Before waste factor
492 ml
Ratio
1 : 1 (most art resins)
Resin cost
$10.13
Pigment / inclusions
$3.00
Total project cost
$13.13
Minimum cure time
Before sanding or de-molding
~24 hours
How to use this
Resin wastage is real — mixing cups keep 5-10 ml each, sticks and brushes soak up more, test pours, drips off the edge, and failed pours. 20-25% buffer is standard; 30% for first-timers.
Volume math: 1 cubic inch ≈ 16.4 ml. A 12×10 slab poured 1/4 in deep is 30 cu in = 492 ml before waste.
Density: cured epoxy ≈ 1.15 g/ml, so total grams ≈ total ml × 1.15. Ratios are by volume (or by weight using the same density) so 1:1 art resin means half Part A, half Part B.
Deep-pour exotherm: thick mixes generate heat as they cure. Above ~2 in depth with standard 1:1 resin, the center overheats and yellows or cracks. Deep-pour 2:1 epoxies are formulated for thicker layers.
Costs exclude mold, mixing supplies, and release agent. Add those as overhead in the True Product COGS calculator.
Formula
volume_ml = L × W × D × 16.387 (rectangle)
total_with_waste = volume × layers × (1 + waste_%)
part_A = total × ratio_a_share
Related calculators
Wastage Buffer Reference
Industry-standard waste percentages for 20 common maker materials — feed into the True Product COGS calc for honest pricing.
True Product COGS (No-BS)
The real cost to make and sell one unit — materials with wastage, packaging, labor with burden, overhead, payment + platform fees, shipping absorbed, income + self-employment taxes. All in.
Packaging Cost Per Unit
Sum the real packaging stack — box, label, stickers, tissue, mailer, void fill, tape, ship label — into a single per-unit cost.
Formula
volume_ml = L × W × D × 16.387; total = volume × layers × (1 + waste%)