TotalBoat Fathom Deep Pour Clear Casting Epoxy
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For the deepest, clearest, single-layer epoxy pours for river tables, live edge slabs, and large molding and casting applications, choose TotalBoat Fathom. This deep pour epoxy resin system features a simple 2:1 mix ratio by volume, and long 4-6 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.
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, with high scratch, stain, and UV resistance to keep its beautiful aesthetic without yellowing or distorting. 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.
NOTE: Fathom is an advanced deep pour epoxy system. It is not compatible with TotalBoat 2:1 epoxy pumps.
TotalBoat Epoxy Type | Thickset | 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 | 4-6 hours |
Demold Time | 12-24 hours | 48-72+ hours |
Full Cure Time | 5-7 days | 5-10 days |
Mix Ratio | 3:1 | 2:1 |
Fathom Lets You Pour Deeper Single Layers Than Ever!
Just how deep can pour 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, 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 Fathom epoxies?
ThickSet and 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 deep pour formula is right for your project, please refer to the table on the Tech Specs tab.
Technical Information
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
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 44 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: 4-6 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)
- Shelf Life: At least 1 year after date of manufacture, if stored properly
Important Notes on Pouring Additional Layers of Fathom
- When pouring multiple layers, it is very important to wait until the previous layer has cooled sufficiently, to prevent yellowing, surface distortion, or other negative consequences of excess heat.
- The safest interval is to wait a minimum of 36 hours for Fathom to cure prior to applying more, regardless of pour depth and ambient temperature.
- When the shortest interval for multiple pours is important, wait at least 24 hours, and use an infrared thermometer to measure the temperature at the center of the epoxy mass.
- Wait until the previous pour has dropped below 85°F, and the previous epoxy pour has firmed up enough that it will not distort when liquid epoxy is poured on it.
- Always follow the maximum pour depth based upon the volume of Fathom.




