Free Epoxy River Table Calculator
Calculate exact epoxy resin volume, Part A & Part B weights, wood absorption buffer, and maximum safe single pour depths.
📐 River Void Dimensions
🧪 Required Resin Volume & Weight
Recommended Tools & Equipment
Tested hardware and components for high reliability
Mastering Deep Pour River Table Epoxy
Curing epoxy is an exothermic chemical reaction (it generates heat as polymer cross-linking occurs). If tabletop epoxy (designed for 1/8" thin topcoats) is poured 2 inches thick, the accumulated heat cannot escape, causing the resin to boil, flash-cure, crack, and discolor yellow with smoke.
Always Seal Live Edges First
Wood is full of microscopic air pockets. When warm epoxy is poured into a mold, air expands and bubbles out of the live edge bark, ruining the clarity. Paint a thin primer coat of epoxy over the raw wood edges 6 hours prior to the main river pour to seal off all capillaries.
Weigh by Scale vs Measure by Cup
Resin Part A and Hardener Part B have different specific gravities (density). While 2:1 is typically specified by volume, weighing with a digital kitchen scale prevents measuring cup meniscus errors on large multi-gallon pours.
Frequently Asked Questions
What is the density of cured epoxy resin?
Most thermoset epoxy resins have a density between 1.10 and 1.15 g/cm³ (averaging 1.12 g/cm³, or roughly 9.35 lbs per US gallon).
How warm should the workshop room be during a deep pour?
Keep the room at a steady 20°C to 22°C (68°F to 72°F). Deep pour epoxy takes 48 to 72 hours to cure; if the ambient room is too hot (> 78°F), the risk of thermal runaway exotherm increases significantly.
How do I remove bubbles from a deep pour river table?
Deep pour epoxy has low viscosity (thin like warm syrup), allowing bubbles to naturally rise to the surface over several hours. Pass a propane torch or heat gun lightly 6 inches above the surface 30 minutes after pouring to pop surface bubbles.