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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 289 Reviews

July 22, 2024

I would buy this product again
By Steve from Kalama, WA

Verified Purchase

Have used it for knifemaking. Perfect working time & seems like it is going to hold up well! Only thing I would like is a smaller pump set, as I don't need very much to glue up a couple of knives.


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June 25, 2024

I would buy again
By jerry from SC

Verified Purchase

easy to use, works well.

Bottom Line Yes, I would recommend to a friend

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June 20, 2024

A product I have used before and will use again
By Ehutch from Plainfield VT

Verified Purchase

I have used Total Boat 5;1 several times before and it does exactly what I expect it to do. It is a great epoxy to use to lay up fibreglass cloth. This time I was using it to apply a fibreglass exterior to a wooden door made to cover a bulkhead entrance. The door is an insulated layer of very thin plywood with a 1 1/2" foam core and 2x2 perimeter. It needed to be lightweight enough for me to lift, but weather-proof and strong enough to stand on. I am satisfied that I git the results I wanted.

Bottom Line Yes, I would recommend to a friend

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June 16, 2024

Another Issue with Total Boat Products
By TimO from Hanover, PA

No matter how much I sand and wipe with solvent, I cannot get this product to apply smoothly. I tried this product over one that I have been using for 50 years because it is less expensive. I've never had an issue with the other product and will be going back to that. I guess you get what you pay for. I use the Total Boat penetrating epoxy and I think that is a great product. I included an image of a typical application result for this product.

Bottom Line No, I would not recommend to a friend

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June 14, 2024

Rear RV fiberglass bonding.
By Kreg from Plattsburgh

Verified Purchase

I had to rebuild a back RV wall and used this slow cure resin to adhere the fiberglass to two sheets (side x side)of exterior plywood and glazed the exposed side of the plywood 2 days after the fiberglass bonded. Worked great

Bottom Line Yes, I would recommend to a friend

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June 13, 2024

I would buy again
By JD. from SC

Verified Purchase

worked great on my boat project.

Bottom Line Yes, I would recommend to a friend

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May 23, 2024

My favorite epoxy
By Making Luna whole again from Vermont

Verified Purchase

I have done a fair bit of epoxy work on boats over the years and TotalBoat is such a reliable product. The kit includes everything you need for a quick project. The cure time was perfect for my needs. The finished product is solid. I used it to wet out several different weights of cloth with ease. No odor to speak of. I will definitely stick with TotalBoat for all my future projects.

Core replacement with TotalBoat epoxy and balsa from Jamestown Distributors.
Bottom Line Yes, I would recommend to a friend

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March 26, 2024

I would buy it again.
By Jimmysattic from Kalispell, Mt.

Verified Purchase

Wood came out great.

Bottom Line Yes, I would recommend to a friend

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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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