Resin Ratio Calculator

BrandTypeRatioResinHardenerTotal
USComposites Slow 2:1
USComposites Medium 3:1
USComposites Fast 4:1
Venom Carbon Fast 3.65:1
Upol Primer Normal 4:0.584
Finish1 Clearcoat Slow 4:1
Custom Any :
• Resin always corresponds to the first number in the ratio. Hardener is the second number.
• Enter either Resin or Total in any row; the other fields update automatically.

PERCENTAGE CALCULATOR

% of ?
Quick helper for “X% of Y”.

MEKP Calculator

• Calculation matches your previous tool (g → oz → mL). Enter resin grams and desired % to get MEKP in cc (mL).