Mixed Resin Needed
11.5 fl oz
Resin Part
5.7 oz
Batch Cost
$13.21
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Result
Round coaster volume comes from the circular area and the pour depth, then a waste factor is layered on for cup and stir-stick losses.
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Result
Changing from 1:1 to 2:1 does not change the total mixed volume, but it does change how much of each bottle you need to pour.
Start with mold area times pour depth to get cubic inches, then convert to fluid ounces. The calculator does that automatically and adds waste so mixing cups and drips are covered too.
Around 5 to 10% is a sensible default for coasters. Use the high end if you flood the edges, tint heavily, or pour decorative inclusions that increase cleanup losses.
The total mixed volume stays the same, but the split changes. A 1:1 resin uses equal parts, while a 2:1 system uses roughly two-thirds resin and one-third hardener by volume.
Many coaster molds sit around 1/8 to 3/8 inch for standard pours, though thicker decorative pours can go deeper. Always follow the mold and resin manufacturer limits for safe curing.
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This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.