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Product Details

For the deepest, clearest, single-layer epoxy pours for river tables, live edge slabs, and large molding and casting applications, choose TotalBoat ThickSet Fathom. This deep pour epoxy resin system features a simple 2:1 mix ratio by volume, and long 2-4 hour working time that make it easy to use, especially for large or complex pours that involve tinting and encapsulations. The extremely slow cure time lets you pour deeper layers, and deeper layers mean fewer pours. Pour single layers of resin up to 3 inches deep for large casting applications, and up to 2 inches deep for slab pours and river tables.

ThickSet Fathom is easy to tint with epoxy-safe coloring agents, including mica powder, pigment paste dispersions, liquid epoxy pigments, alcohol inks and universal tints. Once cured, it can be sanded and turned on a lathe. Cured surface is BPA-free, making it safer for surfaces coming into contact with food.

Available in 1.5 Gallon, 3 Gallon, and 6 Gallon Kits.

PLEASE NOTE: ThickSet Fathom is an advanced deep pour epoxy system. It is not compatible with TotalBoat 2:1 epoxy pumps.

Tech Specs
TotalBoat Epoxy TypeThicksetThickSet Fathom
Best For Smaller scale castings and pours; ideal for castings using less than 16 fl. oz. of mixed epoxy per pour Larger scale projects and castings using 1/2 to 1 gallon of mixed epoxy per pour
Advantages Shorter recoat time, shorter demold time Deepest pour depth per layer, longer working time, fewer pours, easier mix ratio
Maximum Pour Depth 1'' for smaller castings using less than 16 fl. oz. of epoxy; 1/2'' for river tables, slab pours, live edge tables 3'' for larger castings, and up to 2'' deep for river tables, slab pours, and live edge tables
Working Time 10-30 minutes 2-4 hours
Demold Time 12-24 hours 48-72+ hours
Full Cure Time 5-7 days 5-10 days
Mix Ratio 3:1 2:1
Info & Guides

ThickSet Fathom Lets You Pour Deeper Single Layers Than Ever!

Just how deep can pour ThickSet Fathom? When we say deep, we mean deep! Pour single layers of resin up to 3 inches deep for large casting applications, and up to 2 inches deep for slab pours and river tables. That's up to three times deeper than traditional epoxy systems. Because of the depth, ThickSet Fathom takes longer to cure, but it'll be worth the wait because the layers will be seamless, and the finish will be extremely smooth, water-clear, durable and waterproof.

What's the difference between TotalBoat ThickSet and ThickSet Fathom epoxies?

ThickSet and ThickSet Fathom are both crystal clear epoxy kits that allow you to pour deeper single layers than traditional epoxy systems, and both systems require strict attention to application and curing conditions, but that's where the similarities end. To help you you understand the advantages of each epoxy system and decide which ThickSet formula is right for your project, please refer to the table on the Tech Specs tab.

Technical Information

ThickSet Fathom Features

  • Clear epoxy with the deepest pour depth per layer
  • Pour large castings up to 3'' deep, and river tables or slab pours up to 2'' deep
  • Simple 2:1 mix ratio by volume makes it easy to measure and ensure a proper cure
  • Easy to tint with mica powder, pigment dispersions, alcohol inks and other epoxy-safe colorants
  • Extra long working time gives you more time for tinting and encapsulations
  • Cures to an ultra-clear, high-gloss, durable waterproof finish that is BPA-free
  • Cured resin can be sanded, machined or turned, once cured
  • Low VOC and low-odor formula makes it ideal for indoor or studio use

ThickSet Fathom Specifications

  • Application Temperature / Humidity: 60°F-80°F / 0-80% relative humidity
  • Mix Ratio by Volume: 2:1 (2 parts Part A Resin to 1 part Part B Hardener)
  • Mix Ratio by Weight: 100 parts Part A Resin to 43 parts Part B Hardener
  • Maximum Pour Depth Per Layer: 2'' for river pours and slab pours; 3'' for larger castings containing less than 1 gallon of mixed epoxy
  • Working Time: 2-4 hours (depending on the mass of mixed epoxy)
  • Demold Time: 48-72+ hours
  • Full Cure Time: 5-10 days (depending on the mass of mixed epoxy)

Reviews for TotalBoat ThickSet Fathom Deep Pour Clear Casting Epoxy

3 of 3 Reviews

September 20, 2021

Definitely will be using it again
By DP.Woodworks from Miami, Fl

Verified Purchase

I used this product for my 2" thick pour amd turned out absolutely flawless! Highly recommend it for thicker pours. I was able to remove the project out of the form in apx 4 days

Although recommended for thicker than 1" pour, this product worked great on 1" pour as well
15" dia 1.5 thickness (after flattening)
Bottom Line Yes, I would recommend to a friend

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September 4, 2021

Excellent deep pour resin
By Dan Preece from Utah

Verified Purchase

This new resin allowed me to do a 3 inch pour in one setting. Fantastic! See my project at: https://www.artforour.org https://youtube.com/c/artforour

Bottom Line Yes, I would recommend to a friend

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August 31, 2021

Perfect Casting Resin
By Ella from State College, PA

Verified Purchase

I mainly preserve flowers and do resin art and the Thickset Fathom was really clear. It's perfect for deep pours and the 2:1 ratio is easy to use.

Bottom Line Yes, I would recommend to a friend

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