Resin Art Mixing Ratio Calculator
Calculate the right resin amounts for your art project. Get accurate mixing ratios.
Surface area to coat (L × W)
Desired resin depth (1/8" = 0.125)
What mixing ratio do I need for epoxy resin?
Most epoxy resins use 1:1 or 2:1 mixing ratio by volume. 1:1 (equal parts): Mix resin and hardener equally. 2:1: Two parts resin to one part hardener. Always check your specific resin brand - don't assume. Using wrong ratio causes soft spots, tackiness, or incomplete cure. Some resins are weight-based - use a scale for accuracy. Never guess ratios.
How much resin do I need for my project?
Calculate volume: Length × Width × Depth. For 100 sq inches at 1/4" deep: 100 × 0.25 = 25 cubic inches. Convert to fluid ounces: ÷ 1.805 = ~13.9 oz total mixed resin. Always order 10-15% extra for errors, spreading, and items in resin. A little extra prevents running short mid-pour. For deep pours, pour in layers to prevent overheating.
Why is my resin not curing properly?
Resin fails to cure due to: Incorrect ratio (most common), cold temperature (<70°F), expired hardener, incorrect mixing (not thorough enough), high humidity (>80%), or wrong type for project. Fix: warm workspace to 75-85°F, measure precisely, mix thoroughly for 3+ minutes, use fresh hardener. Soft/tacky spots mean uncleared areas - may need to scrape and re-apply. Always test on small sample first.
Can I do deep pours with epoxy resin?
Epoxy generates heat when curing thick sections - can burn, smoke, or crack. Deep pour epoxies are formulated to handle 1"+ pours safely. Pour in 1/4" to 1/2" layers for standard resin, waiting 4-6 hours between layers. Deep pour epoxy specifically states "1-3 inchpour" - check label. Never exceed maximum pour depth on datasheet. In hot weather, pour thinner layers to control exotherm. Fans help control temperature.