Answer
How much epoxy do I need?
About 4 fl oz of mixed epoxy per square foot for one flood coat (ArtResin), plus 10%: 26.4 fl oz for a 24 × 36 in tabletop. For a mold or river table, multiply length × width × depth in inches and divide by 1.805 for fl oz.
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Epoxy for one coat, by size
| Size | Fl oz | Kit |
|---|---|---|
| 8 × 10 in | 2.4 | 8 fl oz |
| 11 × 14 in | 4.7 | 8 fl oz |
| 12 × 12 in | 4.4 | 8 fl oz |
| 16 × 20 in | 9.8 | 16 fl oz |
| 18 × 24 in | 13.2 | 16 fl oz |
| 24 × 36 in | 26.4 | 32 fl oz |
| 24 × 48 in | 35.2 | 64 fl oz |
| 36 × 48 in | 52.8 | 64 fl oz |
| 30 × 60 in | 55 | 64 fl oz |
| 36 × 72 in | 79.2 | 128 fl oz |
For molds, dams and river tables
Multiply length × width × depth in inches for cubic inches, then divide by 1.805 (a US gallon is 231 cubic inches and 128 fl oz). A 72 × 12 in river channel, 1½ in deep, is 1,296 cubic inches: about 718.1 fl oz, or 789.9 fl oz with 10% extra. Or fill the mold with water and measure it.
More questions
How much epoxy for a 24 × 36 table?
About 26.4 fl oz for one coat with 10% extra: 13.2 fl oz each of resin and hardener for a 1:1 product.
How much epoxy per square foot?
About 4 fl oz per coat (ArtResin). Poured to a measured depth, 10 fl oz per sq ft at 1/8 in and 79.8 fl oz at 1 in.
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