Resin Mixing Calculator
Calculate exact Part A and Part B amounts, pigment load, and mixing instructions for any mold.
1 Mold Volume
Volume Unit
Mold Shape
2 Resin Type
Part A: β + Part B: β
3 Pigment / Dye (optional)
Typical range: 0.5β3%
Pot Time Reference
| Resin Type | Pot Time | Full Cure | Notes |
|---|---|---|---|
| Epoxy (2:1) | ~30 min | 24β72 hours | Best for deep pours up to 2" |
| Epoxy (1:1) | ~20β45 min | 12β48 hours | Common casting resin |
| UV Resin | Immediate | 1β5 min (UV lamp) | Thin layers only (<3mm) |
| Polyester | ~15 min | 2β4 hours | Strong fumes; use outdoors |
Volume Formulas
Rectangle: V = L Γ W Γ H Β· Cylinder: V = Ο Γ rΒ² Γ H Β· Half-sphere: V = (2/3) Γ Ο Γ rΒ³
These are interior mold volumes. For silicone molds, measure the actual mold capacity by filling with water and weighing β 1 ml of water weighs 1 gram and equals approximately 0.034 fl oz.