How to Use the Resin Craft Calculator
Accurate measurement is the single most important factor in resin crafting โ wrong ratios cause sticky, uncured results. Enter your mold's shape and dimensions, the number of pieces, and your mixing ratio to instantly see how much resin and hardener to prepare. Add 10โ15% to the calculated amount to account for mixing residue and any inclusions like dried flowers or glitter.
Mixing Ratio Guide
| Ratio | Characteristics | Common Brands |
|---|---|---|
| 1:1 | Easy to measure, beginner-friendly | Most UV resins, ArtResin |
| 2:1 | Harder cure, saves hardener | Casting Craft, Pro Epoxy |
| 3:1 | Maximum hardness, thick pours | Commercial-grade epoxy |
Frequently Asked Questions
My mold will have inclusions โ do I need less resin?
If you're embedding flowers, charms, or other objects, they displace resin. Subtract an estimated 10โ20% from the calculated total depending on how much the inclusions fill the mold.
UV resin vs. epoxy โ which formula applies?
This calculator works for both. UV resin cures in minutes under UV light; epoxy requires mixing Part A + Part B and cures over 24โ48 hours. Both follow the same volume calculations.