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Product Details

TotalBoat 5:1 Epoxy Kits include everything you need to tackle marine epoxy repairs and fiberglass projects. The five part resin to one part hardener ratio is considered the traditional marine epoxy system of choice for projects like bonding, coating, fairing, filleting, and laminating.

Complete project-ready epoxy kits includes: TotalBoat 5:1 epoxy resin; your choice of either fast or slow TotalBoat hardener; and calibrated epoxy pumps that dispense the right ratio of resin and hardener.

System Group Sizes: A - Quart Kit; B - Gallon Kit; C - 4.5 Gallon Kit.

Note: Don't need the pumps? Gallon size kits are also available with just resin & hardener included. This 'no frills' version makes sense if you just need more epoxy.

Tech Specs
HANDLING PROPERTIES Fast Kit Slow Kit
Mix Ratio by Weight100A (Resin) : 18B (Hardener)100A (Resin) : 17B (Hardener)
Mix Ratio by Volume5A (Resin) : 1B (Hardener)5A (Resin) : 1B (Hardener)
Initial Mixed Viscosity at 75°F, cP1,000700
Pot Life at 75°F, 150g mass, min.1220
Work Life at 75°F, Thin Film, min.6090
Cure Time at 75°F, Thin Film, hrs.610
PHYSICAL PROPERTIES
Tensile Strength, psi8,0007,500
Tensile Modulus, psi410,000460,000
Tensile Elongation, %3.54.5
Heat Deflection Temperature120125
Compressive Strength, psi11,50011,500
Flexural Strength, psi14,40012,000
Flexural Modulus, psi460,000450,000
Cured Density, g/cm 3 1.181.18
Volumetric Yield in 3 /lb.23.523.5
Volumetric Shrinkage, %4.44.4
Hardness, Shore D8483
ColorAmberAmber
Should I use this for clear-coating applications?NoNo
Info & Guides
TotalBoat Traditional 5:1 Resin mixed with TotalBoat Fast or Slow Hardeners cures to an amber color, and is not suitable for clear-coating applications. It is the ideal marine epoxy system for boat building (especially fiberglass) and common composite repairs.

For clear-coating applications, or where an ultra clear cure is important, we recommend TotalBoat High Performance 2:1 Epoxy.

For extra long pot life and working time, use TotalBoat Tropical Epoxy.

Tip: Wash cured epoxy with water, scrubbing lightly with a Scotch-Brite pad to remove any amine blush prior to over=coating or painting.

Important Safety Information

Always wear protective clothing and equipment to protect your eyes, skin, and lungs when working with TotalBoat Traditional Epoxy Resin and Hardeners. Personal protective clothing should include appropriate gloves, safety glasses or goggles, a proper respirator, and a proper apron or similar protective clothing.

WARNING: The TotalBoat 5:1 Epoxy Slow Hardener can expose you to chemicals including bisphenol A, which is known to the State of California to cause female reproductive toxicity. For more information, go to www.P65Warnings.ca.gov

Reviews for TotalBoat Traditional 5:1 Epoxy Kits

10 of 281 Reviews

March 2, 2024

Great replacement to using West system
By Sailing since 1966 from FL

Verified Purchase

Switched over to this epoxy from Using West system for years. The pumps are a great addition so that people can get the correct mix. I have recently started using a scale to measure my mixes because the pumps do get messy and take up space. Using the scale with the 5:1 ratio is spot on. I will be using this epxy going forward with all of my repair projects.

Bottom Line Yes, I would recommend to a friend

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February 12, 2024

Great product but the quantities never match up.
By Mike from San Diego

Verified Purchase

So far so good, this is the third time I have ordered this kit and my only complaint would be that the hardener always runs out long before the epoxy does. And it is not by a little amount - forcing the purchase of a new kit and then making the next amount match even less. It would be nice if the dispensed quantities matched a bit better. Other than that, I love Totalboat products and they have always been very helpful.

Bottom Line Yes, I would recommend to a friend

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January 2, 2024

Such an easy and great product combo
By Juan G from VA

Verified Purchase

This is the third time I've ordered this combo from Total Boat. I don't use it on a boat, I use it for custom fiberglass work on Custom Motorcycles. It is so easy to use, easy to mix and easy to lay out. I will never use another product.

Bottom Line Yes, I would recommend to a friend

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December 7, 2023

Totalboat products overall
By Va. Sailor from Potomac River, Va.

Verified Purchase

I'm a DIY boat owner out of necessity, I couldn't afford my boat if I didn't do all repairs and upgrades myself. But I also really enjoy working on boats and have found Totalboat products to be my default "go-to" materials of choice. The quality is excellent, pricing is quite fair and their support is just great. I've used gallons of this epoxy over many years (and several boats) and have never been disappointed, I hope to keep using it for years to come!!!!!!!!!!!

Bottom Line Yes, I would recommend to a friend

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November 27, 2023

Transom Repair
By Pathfinder from Houston, TX

Verified Purchase

I purchased this product to fill in some holes in my transom. I could have used 3M 5200 as a cheap seal, but epoxy is harder and more resilient. It also works well when using a syringe to inject into the holes. The 5:1 pump mixing technique works great! It makes mixing easy and is less messy.

Bottom Line Yes, I would recommend to a friend

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November 27, 2023

Used to Adhere 2 Boards Together
By WBJE1313 from Omaha, Nebraska

Verified Purchase

I purchased this to adhere two 8" wide cypress boards together on their faces to make two boat oars. I had never used this product before and didn't know how much to mix or how it would go. My boards were 8 feet long. So I pumped enough to fill their mixing containers half full. This was based on the coverage they stated for a gallon. I stirred it and then applied it with a foam brush. When I was finished with one board, I had only used about 1/4 of the mixed resin. So I applied it to the other board too. Then I put the 2 boards together and started clamping. A lot of spill wipped upwith paper towels. I expected this stuff to get hot so I set the mixed container inside the other mixing container they provided and set it on the floor. As I was finishing cleaning up, I noticed the sides of both mixing cups bulging from the heat. I have an infared thermometer so I aimed it at the mixed surplus. It registered 233 degrees. I let the boards sit in the clamps for 7 days. I removed the clamps and cut out the oars. The joints look very good. I didn't know how to store the remaining unused surplus solution that had the pumps in it. So I just left the pumps in the bottles and set them back into the big zip loc bag. I wish they would include instructins for how to store the leftover - remove the pumps or leave them in the bottles?

The glued joint
Bottom Line Yes, I would recommend to a friend

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November 20, 2023

Great stuff!
By PJ from AR

Verified Purchase

The product worked exactly as intended and the mix was perfect thanks to the pumps specifically designed to give you the perfect mix.

Bottom Line Yes, I would recommend to a friend

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November 10, 2023

I would buy from Total Boat again.
By Chuck from Irving, TX

Verified Purchase

I have used this item to repair the floor of a boat.

Bottom Line Yes, I would recommend to a friend

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August 27, 2023

I would buy again
By Alex from Atlanta, Ga

Verified Purchase

I have never used epoxy before and I'm now deep into a boat floor repair. I don't have anything to compare to, but this product it's everything I needed.

Bottom Line Yes, I would recommend to a friend

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August 19, 2023

Great product, But the pumps are not needed
By captsam54 from Georgia

Verified Purchase

Because you can use the mix 5.1 graph on the side of the mixing cup is better.. Also does not come with the stir sticks pictured..

Bottom Line Yes, I would recommend to a friend

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