System Three epoxy resin is their mainstay offering, and fits well into over 90% of all epoxy applications. It is a solvent-free unfilled medium-modulus system formulated for use with any of three hardeners (slow, medium, and fast used depending on pot life, set time, and temperature).
Mixed at a 2:1 ratio, System Three epoxy has excellent pot life and cure-time control. It is frequently used for new wooden boat construction and repair, gel coat blister repair, general fiberglass boat repair, coating, and general fiberglass work.
Combine this versatile resin with different fillers to create excellent adhesive, filleting and fairing compounds. Available in quart, gallon, 5 gallon, and 55 gallon quantities.
$413.28
$32.85
$90.44
$3,372.12
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Resin Technical Specs
Mix ratio by Volume: 100:50
Mix ratio by Weight: 100:44
Total Solids: 100 Percent
Mixed Viscosity: 950 cps
Mixed Color: Light Amber
Tensile Strength: 6000 psi
Tensile Elongation: 11 percent
Flexural Strength: 12,500 psi
Flexural Modulus: 350,000 psi
Compressive Strength: 12,000 psi at yield
Coverage: 150 square Ft/Gal at 10 mils
Maximum Service Temperature: 160 degrees F
System Three Cure Schedule
Pot Life at 77 degrees F
Set Time at 77 degrees F
Cure Time at 77 degrees F
1 Fast Hardener
15 Min
2 Hours
3-5 Days
2 Medium Hardener
30 Min
4 Hours
3-5 Days
3 Slow Hardener
70 Min
9 Hours
3-5 Days
Use protective gloves when working with epoxy. Use soap and water or white vinegar to get it off of your hands. Use Denatured Alcohol to clean off your tools.
BRAND:
System Three
Material:
Epoxy
Questions & Answers about System Three Epoxy Resin:
2013-05-20DAVE K asked: Is this a boat finish or do I need to coat it to prevent water from whitening it?
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2013-05-20WALTER MATTSON: Sorry I am unable to help you. I used this product for an indoor rocking chair.
2013-05-20ADAM OKEN: After you apply the systems III epoxy you will need to apply 3-5 coats of a marine quality varnish. I used a brand called systems III spar urethane varnish. It will turn whitish after enough sun time if you don't apply the varnish.
2013-05-20WILLIAM BROWN: Epoxy must be protected from UV rays. I use 2 or 3 coats of resin then 2 of clear coat then finish with varnish with UV protection. Bill
2013-05-20DAVID GAMMONS: Epoxy resins are not UV resistant and must be overcoated to protect against deterioration when exposed to sunlight.
2013-05-21KENNETH SOUCY: Dave; You can use this epoxy to cover bare wood, with or without fiberglass cloth, but it needs to be top coated with either paint or varnish to protect from ultraviolet light. The ultraviolet light will degrade the epoxy if it is not coated with an ultraviolet inhibitor.
2013-05-21Dave K: Thanks
2012-08-21RALPH MAXTON asked: I have a home made plywood boat with a polyurethane gloss painted finish. I need to seal the joints at the keel and chines and would like to use a fiberglass tape and epoxy paint. Will the expoxy adhere to the polyurethane painted surface and which epoxy product ahould I use? Thanks
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2012-09-12KENNETH SOUCY: Ralph;
2012-09-12KENNETH SOUCY: Ralph I would not try adhering the epoxy to a polyurethane finish. You should sand down to bare wood to get the best adhesion. Then you will need to apply some type of coating with ultraviolet protection to protect the epoxy. I have used both system 3 and MAS epoxy and have been pleased with the results of both. Ken
2012-09-12EILEEN HERRMANN: We applied System Three epoxy, mixed two of part A to one of part B, to a polyester resin canoe with a foam roller. We used eight ounces of part A and four ounces of part B and the resulting 12 ounces was just right for the canoe as web ad very little left and it was beginning to set up just after we finished. It looks good however we want to put another coat on and then paint with marine paint.
We cannot help with the po
2012-09-12EILEEN HERRMANN: We Cannot help with the compatibility of epoxy with polyurethane so we suggest that he acquire a small sample and test it where it would do little damage and can be easily removed if unsatisfactory.
2012-09-16WALTER MATTSON: I have only used the epoxy on bare wood, so I am unable to help you. I contacted the company's customer service with my questions and found them extremely helpful; I suggest you contact them also.
Good luck with your project.
Walter
2012-04-13RYAN EGGEN asked: Could this be used for a kiteboard and does this kit come with everything I need?
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2012-04-13Ryan L: This is only the resin. You will need to also order hardener, and any fiberglass you may need.
2011-11-23RONALD POW asked: have you ever used this for a countertop? i am doing a project my counter frame is 6'L x 32' W x 1 1/2 " thick i'm trying to figure how much i will need to fill in to make it solid.i am putting in beer caps , pictures and 6 (1/2' frames )thanks Ron P from Mi
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2011-11-23WALTER MATTSON: I
laminated some wood pieces together and only used 1 oz of epoxy.
It sounds as if you are filling in the 6' frame with 1 1/2" of the epoxy? You would have to determine the cubic inches of area.
Sorry, I can't help you further.
2012-01-19KIM APEL: If I understand your question correctly, you are proposing to use System 3 standard epoxy resin as a "tabletop" resin, i.e. a shiny, clear resin that can be poured in a deep layer and will level almost like a piece of glass. Answer: Don't do it. System 3 isn't that kind of product, and trying to use it that way won't work. Find and use "tabletop" epoxy resin. As for how much to buy, read and follow directions.
A forgiving and temperature tolerant epoxy for strip building kayaks
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No
6/15/2010
5.0
Worked for me
By Earplug
from Colorado
About Me Casual/ Recreational
Pros
Cured in the rain
Easy to Use
Cons
Dripped on my nose
Best Uses
Quick Fix
Comments about System Three Epoxy Resin:
I repaired a hole in the hull while it was on the trailer. Did about eight layers of glass. Good instructions and lots of information on how to fix stuff.
12/12/2009
(2 of 2 customers found this review helpful)
5.0
This is great stuff
By Clement
from Milton, Delaware
About Me Casual/ Recreational
Pros
Easy to Use
Protects Well
Visually Pleasing
Weather Proof
Cons
Best Uses
Quick Fix
Wood Trim
Comments about System Three Epoxy Resin:
I use the med and it was just right for working in the shop @ 63 degrees
7/24/2009
(1 of 1 customers found this review helpful)
4.0
Very good product
By ccdiver
from on / or in the water
Comments about System Three Epoxy Resin:
Not as hard as West System when cured, though this may be desirable in some applications where some flexibility is desired.
4/20/2009
(1 of 1 customers found this review helpful)
5.0
Great Resin
By Roger
from Bloomington, IN
Comments about System Three Epoxy Resin:
I've used System Three products for years with never a disappointment. I've used S3 to repair canoes, kayaks and small wood boats, house trim, antique newel post and a variety of woodworking projects. I weigh the resin and hardener with a postage scale and mix it in cheap paper bowels from the grocery store. I mix thoroughly for sixty seconds. Mix resin the same way every time and you'll have consistent results.
3/27/2009
(3 of 4 customers found this review helpful)
5.0
Reliable epoxy resin
By RebelStreet
from WI
About Me Recreational
Pros
Easy to Use
Flexible
Protects Well
Cons
Best Uses
Laminating
Sheathing
Comments about System Three Epoxy Resin:
I'm using System Three Epoxy to re-sheath an old plywood trimaran. I've used it with the fast and the medium hardener. In both cases it has provided a reliable layup - the working times quoted for the product are very accurate. Good adhesion to old wood and nice finish on the final layer. Mixed with a 50/50 mix of cabosil and microballoons makes an excellent, easily sanded filler and fairing material.
I've used West System and it is an excellent resin too. The flexibility of the System Three might be better on hulls where more flex is needed. I've used the West resin on some structural elements where a stiffer resin makes more sense (i.e. daggerboard trunk and bulkheads)
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