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Epoxy comparison

35 epoxies from 21 brands. Numbers come from the data sheet where the maker publishes one; otherwise from the maker's product page or FAQ, as labeled under each product. Where a product page and its data sheet disagree, we say so.

Each “View at” link goes to the maker's page. Some may become affiliate links, which can earn EpoxyPlan a commission at no cost to you; that never changes the numbers. Disclosure

Product	Type	Max per pour	Mix ratio	Working time	Full cure
EcoPoxy FlowCast River tables and deep casting Technical data sheet checked Oct 5, 2026: Technical data sheet · Product page	Deep pour	1 1/2 in 1/2–1 1/2 in (13–38 mm) per layer	2:1 by volume 2.3:1 by weight	8–12 h in the mold	7–14 days	View at EcoPoxy
Recoat window Pour the next layer while the previous one is still tacky. If it is no longer tacky, wait about 72 h and sand first. Demold / handle Demold in 3 days; ready to finish in 7 days Temperature 68–77 °F (20–25 °C); ideal 72 °F (22 °C) Sizes 6 L, 12 L, 30 L, 60 L, 600 L
EcoPoxy FlowCast SPR Small deep pours: trays, coasters Product page checked Oct 5, 2026: Product page	Deep pour	1 in 1/4–1 in (6–25 mm) for pours up to 3 L	2:1 by volume 2.5:1 by weight	4–5 h	3 days	View at EcoPoxy
Demold / handle Demold in 24 h; ready to finish in 1 day (25 mm pour) Temperature 68–77 °F (20–25 °C) Sizes 750 mL, 1.5 L, 3 L, 6 L, 12 L, 30 L
EcoPoxy UVPoxy Tabletops, coatings and seal coats Product page checked Oct 5, 2026: Product page	Tabletop & coating	1/8 in Up to 1/8 in (3.2 mm) per coat	1:1 by volume 1.2:1 by weight	30–40 min	48 h	View at EcoPoxy
Tacky Tacky in 4–10 h Temperature 68–77 °F (20–25 °C) Sizes 500 mL, 1 L, 2 L, 4 L, 8 L, 20 L, 40 L
TotalBoat Fathom Deep Pour River tables, slabs and mold casting Technical data sheet checked Oct 5, 2026: Technical data sheet (Feb 12, 2025) · Product page	Deep pour	2 / 3 in 2 in per layer for river tables and slabs; 3 in for mold castings of up to 1 mixed gallon per pour. At least 1 in deep.	2:1 by volume 100:44 by weight	4–6 h	5–7 days after the last layer	View at TotalBoat
Recoat window Safest: wait at least 36 h. 24 h is OK once the center is below 85 °F and firm. Demold / handle 48 h for large, deep castings; 72 h for smaller ones Temperature 60–80 °F and 0–80% relative humidity; 70 °F is best for thick pours. Do not use above 80 °F. Seal coat Don't seal with Fathom: the data sheet says it cures too slowly for a seal coat. Seal with a faster epoxy (TotalBoat names its High Performance Epoxy) and let it cure until firm before pouring Fathom. Liquid density Part A 9.22, Part B 8.2 lb/gal Sizes 1.5 gal, 3 gal, 6 gal
TotalBoat TableTop Epoxy Tabletops, coatings, small castings Technical data sheet checked Oct 5, 2026: Technical data sheet (Feb 20, 2025) · Product page	Tabletop & coating	1/4 / 1 in 1/4 in per coat; small castings up to 1 in with 6 fl oz or less mixed	1:1 by volume 1.2:1 by weight	40 min at 70 °F (pot life about 20 min)	5–7 days	View at TotalBoat
Recoat window At least 3 h between 1/4 in layers Demold / handle Tack-free 6 h; sandable 24 h; light use 48 h (1/4 in at 70 °F) Temperature 65–80 °F, 0–60% humidity; 70 °F is best Liquid density Part A 1.15, Part B 0.95 g/cm³ Sizes 2 qt, 1 gal, 2 gal, 4 gal
TotalBoat ThickSet Cast + Coat Thin river layers, coatings, small molds Data sheet vs. ad copy: The product page headline says up to 2 in deep. The data sheet limits river-table and large-pour layers to 1/2 in, and EpoxyPlan uses that. Technical data sheet checked Oct 5, 2026: Technical data sheet · Product page	Deep pour	1/2 / 2 in 1/2 in per layer for river tables and large pours; small molds up to 2 in with 10 fl oz or less mixed	1:1 by volume 1.11:1 by weight	30 min at 70 °F (pot life about 10 min)	3–5 days	View at TotalBoat
Recoat window At least 4 h between layers Demold / handle Tack-free 6–8 h; sandable 24 h; light use 48 h (1/2 in at 70 °F) Temperature 65–75 °F Liquid density Part A 1.15, Part B 1.03 g/cm³ Sizes 2 qt, 1 gal, 2 gal, 4 gal
MAS Epoxies Deep Pour X Deep pours and casting Data sheet vs. ad copy: The product page lists a 12 h working time and a 36 h cure. The instructions say about 1 h to mix and pour and 5–7 days to full cure. EpoxyPlan uses the instructions. Instructions for use checked Oct 5, 2026: Instructions for use · Product page	Deep pour	3 in 2–3 in per pour. Over 3 in risks yellowing and cracking; under 2 in takes 48–72 h to cure.	2:1 by volume 100:43 by weight	Up to about 1 h to mix and pour (5 gal or less); gel 22 h (150 g at 77 °F)	5–7 days	View at MAS Epoxies
Recoat window Typically 24–48 h, once the layer has cooled to 70–80 °F. Scuff-sand with 180 grit. Demold / handle Tack-free about 12 h; sandable 24 h (2–3 in at 77 °F) Temperature 60–80 °F, held steady Sizes 1.5 gal, 3 gal, 6 gal
MAS Epoxies Deep Pour (original) 1/2–1 in deep pours Product page checked Oct 5, 2026: Product page	Deep pour	1 in 1 in for a 1/2 gal pour; 1/2 in for a 1 gal pour	3:1 by volume	3 h		View at MAS Epoxies
Cure time (not full cure) Cure time 24–36 h at 70 °F. MAS does not publish a full-cure time for this product. Temperature 60–75 °F; do not use above 75 °F Sizes 1.3 qt, 1.3 gal, 4 gal
MAS Epoxies Table Top Pro Tabletops and coatings Data sheet vs. ad copy: The product page lists a 30 min working time. The instructions explain that is the 150 g gel time and that 10–15 min is realistic. Instructions for use checked Oct 5, 2026: Instructions for use · Product page	Tabletop & coating	1/4 in 1/8–1/4 in per coat	1:1 by volume 100:83 by weight	About 10–15 min in practice (30 min gel for 150 g at 77 °F)	5–7 days before service	View at MAS Epoxies
Recoat window Pour the next layer once the previous one has cooled to room temperature (70–80 °F). Demold / handle Tack-free about 4 h; sandable 8 h (1/8 in at 77 °F) Temperature 70–80 °F Sizes 2 qt, 1 gal, 2 gal, 4 gal
Stone Coat Woodshop Epoxy Ultra Deep Deep pours and casting Product page checked Oct 5, 2026: Product page	Deep pour	3 in Up to 3 in per pour, at least 1 1/2 in per layer. Small molds can be step-poured at gel stage to 8 in total.	2:1 by volume	12 h at 60–80 °F	5–7 days	View at Stone Coat
Recoat window Next layer at gel stage (firm but tacky): 17–22 h depending on mass Temperature 60–80 °F Sizes 1.5 gal, 3 gal
Stone Coat Woodshop Epoxy Classic Deep Layered pours up to 2 in Product page checked Oct 5, 2026: Product page	Deep pour	1/2 in 1/2 in layers, up to 2 in deep in total	2:1 by volume	80–120 min at 65–75 °F	7–10 days	View at Stone Coat
Recoat window Next layer at gel stage (firm but tacky): 4–6 h Temperature 65–75 °F Sizes 1.5 gal, 3 gal
Stone Coat Woodshop Epoxy Flood Coat Flood coats and top coats Product page checked Oct 5, 2026: Product page	Tabletop & coating	1/4 in Up to 1/4 in per layer	1:1 by volume	45–55 min at 65–75 °F	7 days	View at Stone Coat
Recoat window Add coats at gel stage (14–24 h). If fully cured, sand with 220 grit first. Temperature 65–75 °F Sizes 1 gal, 2 gal
Stone Coat Countertop Epoxy Countertops and tabletops Product page checked Oct 5, 2026: Product page	Tabletop & coating		1:1 by volume	45 min	30 days	View at Stone Coat
Demold / handle Sand or top-coat after 24 h; light use after 24 h Temperature 68–75 °F, 55–65% humidity Sizes 1/2 gal (covers 10 sq ft), 1 gal (covers 20 sq ft), 2 gal, 4 gal
Superclear Liquid Glass Deep Pour River tables and deep casting Product page and FAQ checked Oct 5, 2026: Product page and FAQ	Deep pour	2 / 4 in 2–4 in in a single pass, depending on temperature and mass. Superclear: the 4-inch ceiling is not a universal default; it needs 70–84 °F, an appropriate total mass and good heat dissipation, larger or heavier castings should stay toward the conservative end, and cooler temperatures allow deeper pours than warm ones. EpoxyPlan plans river tables at 2 in.	2:1 by volume 100:44 by weight	About 30–45 min; gels in about 10–12 h (FAQ) or 14–16 h (product text)	About 30 days	View at Superclear
Recoat window For pours deeper than one layer, let each layer gel before the next. The page gives about 10–12 h in its FAQ and 14–16 h in the product text; EpoxyPlan waits 14 h. Demold / handle Workable, sandable and ready to demold in 48–72 h Temperature 70–84 °F Sizes 48 fl oz, 0.75 gal, 1.5 gal, 3 gal
Upstart Epoxy Deep Pour River tables Data sheet vs. ad copy: The headline says 2 in pours. The FAQ says to limit larger projects to 1 1/2 in at a time, so EpoxyPlan uses 1 1/2 in for river tables. Product page and FAQ checked Oct 5, 2026: Product page and FAQ	Deep pour	1 1/2 / 2 in 2 in per pour; limit larger projects to 1 1/2 in at a time	2:1 by volume	6 h	72 h	View at Upstart Epoxy
Recoat window Next layer at tacky cure, about 24 h. If fully cured, sand with 220 grit first. Sizes 1.5 gal, 3 gal, 6 gal, 9 gal
Alumilite Amazing Clear Cast Casting and coating: art, bar tops Specification sheet checked Oct 5, 2026: Specification sheet · Product page and FAQ	Casting	3/8 in 3/8 in per layer	1:1 by volume	Open time 30–40 min (100 g at 75 °F)	72 h	View at Alumilite
Recoat window Pour the next layer after the previous one cures. Demold / handle 24–48 h (100 g at 75 °F) Temperature 70–80 °F; humidity under 60% Liquid density mixed 1.08 g/cm³ (specific gravity) Sizes 16 fl oz, 32 fl oz, 64 fl oz, 1 gal, 2 gal, 10 gal
Alumilite Amazing Deep Pour River and live-edge tables Product page checked Oct 5, 2026: Product page	Deep pour	2 in Up to 2 in in a single layer	2:1 by volume		5–7 days for full strength	View at Alumilite
Demold / handle Cures to the touch in 24–48 h Sizes 24 fl oz, 1.5 gal, 3 gal
ArtResin ArtResin Art coatings (1:1 doming) Product page and FAQ checked Oct 5, 2026: Product page and FAQ · How-to-apply guide	Art resin		1:1 by volume	About 45 min (about 10 min less if warmed)	72 h	View at ArtResin
Recoat window Second coat at about 8 h, while tacky Demold / handle Dry to the touch in about 12–24 h; 95% cured at 24 h Temperature Cures best at 75–85 °F, 50–80% humidity Sizes 8 fl oz, 32 fl oz, 1 gal, 2 gal, 4 gal, 10 gal
ArtResin ThickCast Deep pours and casting Product page checked Oct 5, 2026: Product page	Deep pour	3 in Up to 3 in deep	2:1 by volume	Pour within 10 min of mixing		View at ArtResin
Initial cure Initial cure 72 h Sizes 48 fl oz, 1.5 gal
Let's Resin Deep Pour River tables and floral casting Instructions checked Oct 5, 2026: Instructions · Product page	Deep pour	2 in The maker says 2–4 in in a single pour; EpoxyPlan plans at 2 in, the conservative end. Pours under 12 fl oz cure more slowly.	2:1 by volume	60–80 min	48–72 h	View at Let's Resin
Demold / handle Demold and tack-free in 8–12 h Temperature 75–85 °F is ideal Sizes 51 fl oz, 1.5 gal, 3 gal, 6 gal
Let's Resin Table Top Tabletops and coatings Product page checked Oct 5, 2026: Product page	Tabletop & coating		1:1 by volume	20 min	24 h	View at Let's Resin
Demold / handle Demold in 8 h (77–85 °F) Temperature Cures at 77–85 °F Sizes 1 gal
Promise Epoxy Deep Pour Deep pours Product page checked Oct 5, 2026: Product page	Deep pour	2 in 2 in pour depth	2:1 by volume		48 h	View at Promise Epoxy
Sizes 3 qt, 1.5 gal, 3 gal
Promise Epoxy Table Top Tabletops and coatings Product page checked Oct 5, 2026: Product page	Tabletop & coating		1:1 by volume		72 h	View at Promise Epoxy
Sizes 16 fl oz, 32 fl oz, 64 fl oz, 1 gal, 2 gal
East Coast Resin Table Top Epoxy Tabletops and bar tops Directions for use checked Oct 5, 2026: Directions for use · Product page	Tabletop & coating	3/16 in Flood coats self-level at about 1/8 in; no more than 3/16 in per flood coat. Build any depth in coats.	1:1 by volume	30–35 min		View at East Coast Resin
Recoat window Flood coat at least 4 h after the seal coat; 4–10 h between flood coats Cure time (not full cure) Curing time 16–20 h (product page). Full cure is not published. Temperature Use at 72–85 °F (ideal 75–80 °F); warm the product to at least 75 °F Seal coat Flood coat at least 4 h after the seal coat. Sizes 32 fl oz, 64 fl oz, 1 gal, 2 gal, 4 gal
System Three MirrorCast Voids, cracks and narrow river sections Technical bulletin checked Oct 5, 2026: Technical bulletin · Product page	Casting	3/4–3 in Depends on void width: up to 3 in deep at 1 in wide, down to 3/4 in deep at 7–7 1/2 in wide (at least 1/2 in per pour)	2:1 by volume 100:41 by weight	1 h at 70 °F	7 days before sanding or finishing	View at System Three
Recoat window Repour at max depth after 14 h (1 in wide), 12 h (2–3 in wide) or 10 h (4–7 1/2 in wide). No sanding needed within 72 h. Temperature 70–85 °F; best at 70–80 °F Seal coat Brush on a thin coat of MirrorCast, then a second thin coat 10–15 min later. Allow an overnight cure; the seal coat stays tacky, and that is fine before filling. Liquid density Part A 9.48, Part B 7.99 lb/gal Sizes 1.5 pt, 3 qt, 1.5 gal, 15 gal
Smooth-On EpoxAcast 690 Thin clear castings Technical bulletin checked Oct 5, 2026: Technical bulletin · Product page	Casting	3/8 in 3/8 in standard; 3/4 in with fan cooling	100:30 by weight Weigh only	Pot life 5 h	Properties are measured after 7 days at 70 °F	View at Smooth-On
Recoat window Add a layer only after the previous layer has fully cured (24 h standard). Demold / handle Cures in 24 h standard (3/8 in at 70 °F); 36 h fan-cooled Temperature Pour and cure at 70 °F Sizes Trial unit, 2.6 lb, 1 gal unit, 10.4 lb, 5 gal unit, 45.5 lb
Smooth-On EpoxAcast 692 Deep Pour Deep pours and river tables Technical bulletin checked Oct 5, 2026: Technical bulletin · Product page	Deep pour	1 1/2 in 1 1/2 in standard; 2 in with fan cooling	100:40 by weight Weigh only	Pot life 12 h	Properties are measured after 21 days at 70 °F	View at Smooth-On
Recoat window Add a layer only after the previous layer has fully cured (72 h standard). Demold / handle Cures in 72 h standard (1 1/2 in at 70 °F); 7 days fan-cooled Temperature Pour and cure at 70 °F Sizes 11.2 lb unit, 56 lb unit
Entropy Resins CCR + CCS Slow Clear casting, bar tops, void fill Technical data checked Oct 5, 2026: Technical data (product page) · Casting how-to	Casting	1 in Up to 1 in per pour for large pours; castings of 16 oz or less at any depth. CCF Fast: 1/2 in max and under 1 pint.	2:1 by volume 100:42 by weight	Pot life 360 min at 77 °F (CCS)		View at Entropy Resins
Recoat window Pour the next layer while tacky (like the back of masking tape); otherwise let it harden and sand. Demold / handle Tack-free in 72 h at 95 °F (CCS) Liquid density Part A 1.13, Part B 0.95 g/cm³; mixed 1.07 g/cm³ (with CCS Slow hardener; CCR with CCF Fast is 1.09 mixed) Sizes 1.5 qt kit (86 in³), 3 qt kit (173 in³), 1.5 gal kit (346 in³), 3 gal kit (691 in³), 6 gal kit (1,342 in³), 15 gal kit (3,456 in³)
WEST SYSTEM 105 Resin + 207 Special Clear Hardener Clear coating; crack and knot filling Product page checked Oct 5, 2026: Product page · Epoxyworks (Gougeon Brothers)	Tabletop & coating		3:1 by volume	Pot life 20–26 min (100 g at 72 °F); thin-film working time 100–120 min		View at WEST SYSTEM
Recoat window Pour again 3–12 h after the previous pour (at 70–75 °F) to avoid sanding between pours. Demold / handle Solid in 10–15 h at 72 °F Temperature Minimum cure temperature 60 °F Sizes Group A, 1.33 qt, Group B, 1.3 gal, Group C, 5.8 gal
GlassCast GlassCast 50 Deep casting and river tables (UK) Technical data sheet checked Oct 5, 2026: Technical data sheet (v2) · Product page	Deep pour	18–50 mm Depends on temperature and mould. Thin-walled mould under 1 kg: 50 mm at 15 °C, 40 mm at 20 °C, 30 mm at 25 °C. Into wood or over 1 kg: 25 mm at 15–20 °C, 18 mm at 25 °C.	2:1 by volume 100:43 by weight	Pot life by batch size: 500 g 60 min; 1 kg 45 min; 2 kg 25 min; 3 kg 15 min; 4 kg 10 min; 5 kg 5 min	About 7 days at room temperature	View at GlassCast
Recoat window Can be layered onto a partially cured previous layer. Demold / handle Initial cure 96 h at 15 °C, 72 h at 20 °C, 48 h at 25 °C Temperature 15–25 °C (59–77 °F); 18–20 °C recommended Liquid density Part A 1.17, Part B 0.99 g/cm³; mixed 1.11 g/cm³ Sizes 500 g, 1 kg, 5 kg, 15 kg, 30 kg
Craft Resin Arts & Crafts Epoxy Art and coatings Product page checked Oct 5, 2026: Product page	Art resin	1/4 in 1/4 in (6 mm) per layer	1:1 by volume	35 min (50 g at 25 °C)		View at Craft Resin
Demold / handle Hard cure in 24 h Sizes 2 gal
The Epoxy Resin Store Liquid Diamonds Pen blanks, inclusions, small molds A long-running favorite for pen blanks on the IAP penturners forum. Product page checked Oct 5, 2026: Product page	Casting	1 in Several 1/2–1 in pours instead of one 2 in pour	2:1 by volume		Cures within 24 h	View at The Epoxy Resin Store
Sizes 24 fl oz, 1.5 gal
Unicone Art Clear Casting Epoxy Art and casting Product page checked Oct 5, 2026: Product page	Art resin		1:1 by volume	30 min	24 h	View at Unicone Art
Sizes 1 gal set, 2 gal kit
Rust-Oleum Parks Super Glaze Table and bar top pour-on coating Technical data sheet checked Oct 5, 2026: Technical data sheet · Product page (now sold as Varathane Super Glaze, SKU 241352)	Tabletop & coating	About 1/16 in recommended Recommended thickness about 1/16 in (penny thickness) per pour; 1 qt covers about 6.2 sq ft. This is a recommendation, not a stated maximum.	1:1 by volume	20–25 min at 70 °F	72 h	View at Rust-Oleum
Recoat window Pour a thin seal coat, then the remaining 3/4 after 4–5 h Demold / handle Touch-dry in 4–5 h (70–80 °F, 50% humidity) Temperature 70–90 °F, humidity under 85% Seal coat Pour a thin seal coat, then the remaining 3/4 after 4–5 h. Sizes 1 qt kit (0.95 L)
WiseBond Deep Pour Community pick River tables Tied with Superclear 2.0 for clearest in Matt's Woodworks' unsponsored 13-brand, 2 in deep-pour test (the brands supplied the resin), and recommended on woodworking forums. No data sheet. Retail listing checked Oct 5, 2026: Retail listing (Home Depot) · Matt's Woodworks 13-brand test	Deep pour	2 in 2 in in a single pour	2:1 by volume			View at WiseBond
Sizes 1.5 gal

How these numbers were chosen

Every figure comes from the data sheet where the maker publishes one (a technical data sheet, technical bulletin or official instructions); otherwise from the maker's product page or FAQ, as labeled under each product with the date it was checked. When a product page and its data sheet disagree, the comparison uses the data sheet and notes the difference. Fields a maker doesn't publish are left blank rather than guessed.

Where a maker states a range that depends on conditions (for example “2–4 in depending on temperature and mass”), the planner uses the conservative end and shows the condition in the text. Batch-size rules (such as “2 in only with 10 fl oz or less mixed”) are applied automatically: a bigger pour is planned at the maker's large-pour limit.

Max pour depth is per layer under the maker's stated conditions. Warm shops, large volumes and narrow forms all change how much heat builds up, so treat the limit as a ceiling, not a target.

Prices aren't listed because they change often. Product links go to each manufacturer's own page.

Affiliate disclosure

Some product links may become affiliate links, which means EpoxyPlan could earn a commission at no extra cost to you. Links never change which products are listed or what the numbers say.