Deep Pour & River Table Calculator
Accurately estimate the exact volume of deep pour epoxy resin needed for your thick river tables, casting molds, and large art projects.
←All Resin CalculatorsTo find the total volume for a river table, multiply your project's Length × Average Width × Pour Depth in inches to get the cubic inches. Then, divide by 231 to convert to US Gallons. Pourla Deep Pour Epoxy requires a strict 2A:1B mix ratio and can be poured up to a massive 4 inches thick in a single coat.
Enter Pour Dimensions
Enter your dimensions to calculate the exact gallons and fluid ounces needed.
*Includes a 5% buffer for mixing waste and minor leaks.
Pro Guide: Casting More Than 4" Thick (Step-Pouring)
Pourla Deep Pour Epoxy is engineered to handle massive single pours up to 4 inches thick. However, if your river table or mold is deeper than 4", you must pour in multiple layers (Step-Pouring) to prevent the resin from dangerously overheating (exothermic reaction). Follow this official protocol:
- 1 Pour Layer 1: Pour your first layer up to the 4-inch maximum limit. Use a torch to pop any surface bubbles.
- 2 The 24-36 Hour "Sticky" Window: Wait 24 to 36 hours. During this window, the epoxy will be firm but slightly tacky. Pour your second layer directly on top. They will chemically bond into a seamless, crystal-clear block—no sanding required!
- 3 What if I wait too long? If more than 72 hours have passed, the first layer has cured too hard. You must lightly scuff the entire surface with 220-grit sandpaper and wipe it clean before pouring the next layer to create a proper mechanical bond.
Key Specs from Technical Data Sheet (TDS)
Pourla Deep Pour Epoxy Resin is formulated for extreme thickness, offering excellent transparency and natural defoaming properties with very low heat generation.
| Property | Specification |
|---|---|
| Mix Ratio | 2A : 1B (By Volume) |
| Max Pour Thickness | Up to 4 inches per coat |
| Working Time (Pot Life) | Approx. 6 hours @ 77°F |
| Initial Cure Time | 36-48 hours @ 77°F |
| Full Cure Time | 72 hours @ 77°F |
River Table & Deep Pour FAQ
How do I calculate the width of an irregular river table?
Since the live edges of wood are organic, your river's width will constantly change. To get an accurate average, take a width measurement every 6 to 10 inches down the length of the table. Add all those measurements together, and divide by the number of measurements you took. Enter that resulting number into the "Average Width" box.
Do I need to seal the live edges before pouring?
Yes. Wood is highly porous and contains trapped air. When working with live edge wood, applying a thin seal coat is recommended to prevent air bubbles from forming during the deep cure process. Use a thin layer of mixed epoxy (about 1 oz per square foot) and allow it to cure until solid before initiating your massive flood pour.
How thick can I pour Pourla Deep Pour Epoxy at once?
You can pour up to 4 inches thick in a single application. Our slow-curing formula (6-hour pot life) is designed to drastically reduce the exothermic heat reaction, allowing bubbles to escape naturally and preventing the resin from cracking or shrinking at extreme depths.