Deep Pour vs. Table Top Epoxy: Which One Do You Need?

Two bottles of clear epoxy can look identical on the shelf and behave nothing alike once you mix them. One is built to cast inches deep. The other is built to coat a surface in a thin, mirror-flat layer.

Pick the wrong one and you get a cracked, overheated slab or a river channel that never fills. Here is how we tell them apart.

The Short Answer

Deep pour epoxy resin is a 2:1 casting resin formulated to be poured thick — Superclear Liquid Glass Deep Pour handles 2 to 4 inches in a single pour — while table top epoxy is a 1:1 coating resin that goes on no more than a quarter inch per pour. Deep pour fills a void; table top covers a surface. That one distinction decides almost every project.

Casting vs. Coating Is the Whole Difference

The split between the two is a chemistry decision about heat, not a marketing one. Thick epoxy generates heat as it cures, so a casting resin like Liquid Glass Deep Pour is formulated to react slowly and shed that heat over a long gel time. A coating resin cures faster in a thin film, which is what you want on a table top and exactly what causes trouble if you pour it two inches deep.

That is why the mix ratios differ, and why they are not interchangeable.

A few numbers on that table deserve a note.

Deep pour asks for patience at the mixing stage. We stir for a full five minutes, transfer everything to a second clean bucket, and mix three minutes more — the double-bucket method — then pour without scraping the bucket. Scraped-in material from the sides is the most common cause of soft or tacky spots.

Table top epoxy is mass sensitive, which pulls the other way. Mix no more than a half gallon in one container, work between 70 and 84 degrees F, and spread it promptly with a squeegee, a notched trowel, or a gloved hand. The warmer your shop, the shorter your working time.

Both reach full cure and maximum hardness at 30 days. Hard to the touch in about a day is not the same as fully cured, and it is worth telling a client that before you deliver a piece.

Which One Your Project Needs

Match the resin to the depth of the void you are filling, and the choice makes itself.

• River table — Deep pour. The channel between two live-edge slabs is a deep void, and pouring a river table in one 2-inch lift instead of eight thin ones saves you a week.
• Deep mold, cast, or encapsulation — Deep pour epoxy resin. Flowers, coins, hardware, anything suspended in clear depth.
• Bar top or restaurant table — Table top. You are sealing and finishing a surface, not filling it. Our bar top epoxy guide walks through the flood coat.
• Refinishing an existing table — Table top, poured up to a quarter inch and re-coated while the first layer is still tacky.
• Charcuterie or serving board — 24 Hour Liquid Glass Deep Pour sits between the two. It is still a 2:1 casting resin, but it maxes out at 1 inch per layer and demolds in 24 to 36 hours when you need the turnaround.
• Art, photos, or a flat inlay under clear — Table top, as a coating over the work.

Every one of these cures crystal clear, zero VOC, and formulated to meet FDA guidelines for indirect food contact once fully cured — which matters most on the food-adjacent pieces.

A Lot of Projects Need Both

Most river tables use both resins, in a specific order, and skipping the first one is a classic first-timer mistake.

Before a deep pour goes into a wood channel, we seal the raw wood with a thin coat of table top epoxy. Bare wood holds air, and that air escapes into your deep pour epoxy resin as a curtain of bubbles you cannot torch out from two inches down.

Brush the seal coat on, let it get tacky, then pour your deep pour straight onto it. If the seal coat has already cured hard, scuff it with 320-grit and wipe it down with 90% isopropyl alcohol first.

Then the order reverses. Once the cast has cured and you have sanded the top flat, a flood coat of epoxy resin for table tops brings back the glass-clear gloss across wood and resin alike.

Deep pour builds the depth. Table top delivers the finish.

Frequently Asked Questions

How thick can you pour table top epoxy?

Table top epoxy pours up to a quarter inch thick per application. Going deeper traps heat in the film and risks a soft or distorted cure. If you need more thickness, pour a second layer while the first is still slightly tacky — generally 2 to 6 hours later — or move to a casting resin.

Can I use table top epoxy for a river table?

We do not recommend it. A river channel is usually 1 to 2 inches deep, well past the quarter-inch-per-pour limit of a coating resin, and building it in quarter-inch lifts would take a dozen pours and a dozen chances for dust and bubbles. Use deep pour epoxy resin for the river, then table top for the final flood coat.

How long does deep pour epoxy take to cure?

Liquid Glass Deep Pour gels in 10 to 12 hours, hardens enough to demold at 48 to 72 hours, and reaches full cure and maximum hardness at 30 days. Leave the piece undisturbed in a dust-free space for the first 72 hours. Cooler shops and smaller masses both stretch those windows.

Go Deeper

This post covers the choice between the two resins. For the full walkthrough of casting — planning your volume, mixing, degassing, temperature, and troubleshooting a pour that went sideways — see our complete guide to deep pour epoxy for woodworkers. If a coating is what you actually need, start with how to epoxy a table top, and for faster casts see the 24 Hour Liquid Glass guide.

Ready to Pour

Shop Liquid Glass Deep Pour Epoxy Casting Resin 2:1 for the castings and Superclear Table Top Epoxy 1:1 for the finish. We manufacture both in-house at FGCI in St. Petersburg, Florida, in small batches.

If you are planning a job and want a second opinion on depth or volume, call us at 888-849-0588.