System Three T88
System Three System Three epoxy
  • System Three T88

System Three T88 Structural Adhesive

System Three T88 epoxy is a high performance structural adhesive resin for wood, metal, concrete, marble and most rigid surfaces. This waterproof, non-brittle, two-part epoxy adhesive is designed to provide superior results under adverse conditions.

T88 may be used without modification in normally fitted joints, and will cure in any thickness without shrinkage. It is a clear amber and becomes virtually invisible when varnished. This epoxy exhibits outstanding adhesion and permanence on a wide variety of materials, and is endorsed by leading designers, builders, and organizations.

Working time is one hour, Tack-free in 4-6 hours. Tensile strength 7,000 psi. T88 is often used as a very strong woodworking glue.

 
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Tech Spec Product Info User Generated Content
    T-88 TECHNICAL SPECIFICATIONS
    Resin Properties:
  • Viscosity at 77 deg F: 9000-11000 cps
  • Specific Gravity: 1.10-1.12
  • Color: Clear
      Hardener Properties:
  • Viscosity at 77 deg F: 8000-10000 cps
  • Specific Gravity: 0.95-0.97
  • Color: Amber
    • Mixed System Properties:
  • Mix ratio by weight resin/hardener: 100/83
  • Mix ratio by volume resin/hardener: 100/100
  • Pot Life at 77 deg F: 40-60 minutes
  • Full Cure at 77 deg F: 4-6 hours
  • Coverage: 80 square ft/gal
  • Maximum Service Temperature: 160 deg F
    • Typical Cured Properties:
  • Tensile Strength, psi: 7000
  • Tensile Elongation at break: 7.5 percent
  • Flexural Strength, psi: 11,500
  • Flexural Modulus, psi: 375,000
    • Lap Sheer Strength:
  • Polyester Laminate: 2800 psi
  • Concrete: 1100 psi
  • Wood: 1800 psi
  • Aluminum: 2000
  • Galvanized Steel: 1800 psi
  • Copper: 1650 psi
  • Use protective gloves when working with epoxy. Use soap and water or white vinegar to clean off of your hands. Use Denatured Alcohol to clean off your tools.

    BRAND: System Three
    Material: Epoxy
    Number Of Parts: Two Part
    Rate Of Cure: Medium
    Strength: Strong
    Type: Epoxy Adhesive
    4.5 13

    REVIEW SNAPSHOT®

    by PowerReviews
    System Three T88 Structural Adhesive
     
    4.5

    (based on 13 reviews)

    Ratings Distribution

    • 5 Stars

       

      (9)

    • 4 Stars

       

      (3)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (1)

    92%

    of respondents would recommend this to a friend.

    Pros

    • Easy to use (7)
    • Weather proof (7)
    • Visually pleasing (4)
    • Protects well (3)

    Cons

    • Messy (6)

    Best Uses

    • Outdoors (7)
    • Indoor (4)
    • Wood trim (3)
      • Reviewer Profile:
      • Casual/ recreational (4), Recreational (4), Advanced (3)
      • Was this a gift?:
      • No (7)

    Most Liked Positive Review

     

    Testing Proof To Myself

    While planning my 21 ft Dory I ran some destructive test using Pine 2x4s and 1/2" Plywood. I tried 3 different glues:
    1. T-88 Epoxy
    2. Gorilla ...Read complete review

    While planning my 21 ft Dory I ran some destructive test using Pine 2x4s and 1/2" Plywood. I tried 3 different glues:
    1. T-88 Epoxy
    2. Gorilla Glue
    3. Yellow Water Proof Wood Glue

    The 1st test was with the 2 x 4 on edge with 4" of glue and held with 2 screws to the plywood. All three samples were precoated so as not to have dry joints and recoated after 5 minutes. After 24 hours the samples were broken.
    1. The T-88 Epoxy Sample took wood from both the plywood and 2 x 4s. But only about 1/8" deep.
    2. The Gorilla Glue also took some wood but less then the Epoxy.
    3. The Yellow Wood Glue had only minor amounts of wood where broken.

    The 2nd test was made only with T-88 Epoxy as it was the clear winner of test #1. With this 2nd test I once again made samples using 2 x 4s and 1/2" plywood.
    1. Tight joint as in Test #1 with T-88.
    2. Loose joint with one end touching and the other end 1/8" loose but fully filled with glue.
    3. The 3rd sample was also loose in the same way but I added some 1/32" chopped fiberglass to the epoxy. ( 3 TBS for ¼ cup of epoxy) Sorry for the cooking measurements.
    4. The 4th sample was also made with the glass filled epoxy, but the joint was tight.

    After 24 hours I broke the parts.
    1. The tight joint with T-88 took a small amount of wood and was about the same as the first test results.
    2. The 2nd sample took a little more wood.
    3. The 3rd sample took wood about 1" deep in the 2 x 4 and ripped the plywood.
    4. The 4th sample also took wood but about ½ as much as sample #3.

    OK, so the clear winner was a loose joint with glass filled T-88. (So much for wood class and making a good tight glue joint. Lol)

    My boat plans called for face to face gluing of 2 x 4s and so I glued some samples using 18" long boards glued at one end forming a 90 deg part. I made 2 samples of each.
    1. Sample #1 was glued using glass filled T-88 and held with two 3" deck screws.
    2. Sample #2 was the same except I drilled a hole 3/8" diameter 1/4" inch deep at each screw. (Glue Faces) I filled these holes with glass filled epoxy and reclamped with the screws.

    After 24 hours I removed the screws and broke the samples using a hyd press. All 4 samples were very strong but the samples with the filled 3/8" holes took a lot more force to break. Also these 2 samples failed by breaking deep into the board.

    After getting these results I have started my boat and made all of my joints with glass filled T-88. I now have it ready to apply the plywood.

    Bottom line is, I trust T-88 Epoxy. No I don't work for System Three.

    VS

    Most Liked Negative Review

     

    poor produce

    Product runs when applied in a vertical position. Very runny. I expected a much thicker working consistency. Dries hard but is not feasible for use in vertical construction applications.

    Product runs when applied in a vertical position. Very runny. I expected a much thicker working consistency. Dries hard but is not feasible for use in vertical construction applications.

    Reviewed by 13 customers

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    Displaying reviews 1-10

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    5.0

    Like a Rock

    By sean

    from Boston, MA

    About Me Casual/ Recreational

    Verified Reviewer

    Pros

    • Easy to Use
    • Ultra Strong

    Cons

    • Takes A Day To Cure

    Best Uses

    • To Permanently Bond Items

    Comments about System Three T88 Structural Adhesive:

    Use this product to turn 3" hardwood flooring into stair treads. kind of an unconventional idea but this product helped bring it to life. The look great.

    • Was this a gift?:
    • No
     
    5.0

    T 88

    By Moke

    from Indiana

    About Me Advanced

    Verified Reviewer

    Pros

      Cons

        Best Uses

          Comments about System Three T88 Structural Adhesive:

          Very strong & good working time

          • Was this a gift?:
          • No
           
          5.0

          Great Glue

          By jbdhere

          from Southern Indiana

          About Me Casual/ Recreational

          Verified Reviewer

          Pros

          • Easy to Use

          Cons

          • None

          Best Uses

            Comments about System Three T88 Structural Adhesive:

            Bottom Line for me is, the wood breaks before the glue joint. I also find a loose joint works the best for me using T-88.

            • Was this a gift?:
            • No
             
            5.0

            Testing Proof To Myself

            By jbdhere

            from Indiana

            About Me Casual/ Recreational

            Verified Reviewer

            Pros

              Cons

                Best Uses

                • Indoor
                • Outdoor
                • Quick Fix

                Comments about System Three T88 Structural Adhesive:

                While planning my 21 ft Dory I ran some destructive test using Pine 2x4s and 1/2" Plywood. I tried 3 different glues:
                1. T-88 Epoxy
                2. Gorilla Glue
                3. Yellow Water Proof Wood Glue

                The 1st test was with the 2 x 4 on edge with 4" of glue and held with 2 screws to the plywood. All three samples were precoated so as not to have dry joints and recoated after 5 minutes. After 24 hours the samples were broken.
                1. The T-88 Epoxy Sample took wood from both the plywood and 2 x 4s. But only about 1/8" deep.
                2. The Gorilla Glue also took some wood but less then the Epoxy.
                3. The Yellow Wood Glue had only minor amounts of wood where broken.

                The 2nd test was made only with T-88 Epoxy as it was the clear winner of test #1. With this 2nd test I once again made samples using 2 x 4s and 1/2" plywood.
                1. Tight joint as in Test #1 with T-88.
                2. Loose joint with one end touching and the other end 1/8" loose but fully filled with glue.
                3. The 3rd sample was also loose in the same way but I added some 1/32" chopped fiberglass to the epoxy. ( 3 TBS for ¼ cup of epoxy) Sorry for the cooking measurements.
                4. The 4th sample was also made with the glass filled epoxy, but the joint was tight.

                After 24 hours I broke the parts.
                1. The tight joint with T-88 took a small amount of wood and was about the same as the first test results.
                2. The 2nd sample took a little more wood.
                3. The 3rd sample took wood about 1" deep in the 2 x 4 and ripped the plywood.
                4. The 4th sample also took wood but about ½ as much as sample #3.

                OK, so the clear winner was a loose joint with glass filled T-88. (So much for wood class and making a good tight glue joint. Lol)

                My boat plans called for face to face gluing of 2 x 4s and so I glued some samples using 18" long boards glued at one end forming a 90 deg part. I made 2 samples of each.
                1. Sample #1 was glued using glass filled T-88 and held with two 3" deck screws.
                2. Sample #2 was the same except I drilled a hole 3/8" diameter 1/4" inch deep at each screw. (Glue Faces) I filled these holes with glass filled epoxy and reclamped with the screws.

                After 24 hours I removed the screws and broke the samples using a hyd press. All 4 samples were very strong but the samples with the filled 3/8" holes took a lot more force to break. Also these 2 samples failed by breaking deep into the board.

                After getting these results I have started my boat and made all of my joints with glass filled T-88. I now have it ready to apply the plywood.

                Bottom line is, I trust T-88 Epoxy. No I don't work for System Three.

                • Was this a gift?:
                • No
                 
                4.0

                great for bent wood laminations

                By Frodo

                from Middletown, Ohio

                About Me Advanced

                Pros

                • Great for lamination
                • Visually Pleasing
                • Weather Proof

                Cons

                • Messy

                Best Uses

                • Indoor
                • Outdoor

                Comments about System Three T88 Structural Adhesive:

                great for glueing up laminations when bending wood using this method. no creep even after years.
                long working time is a big plus when setting laminated piece into forms.squeeze out can be a problem because of glue viscosity.

                • Was this a gift?:
                • No
                 
                5.0

                T-88

                By Flaco

                from La Porte, Texas

                About Me Casual/ Recreational

                Pros

                • Easy to Use
                • Weather Proof

                Cons

                  Best Uses

                  • Indoor
                  • Outdoor
                  • Wood Trim

                  Comments about System Three T88 Structural Adhesive:

                  I have used T-88 for years and have always been satisfied with it.

                  • Was this a gift?:
                  • No
                   
                  5.0

                  T-88 Structural Adhesive

                  By Ike

                  from New-Jersey

                  About Me Professional

                  Pros

                  • Easy to Use
                  • High Viscosity
                  • Protects Well
                  • Visually Pleasing
                  • Weather Proof

                  Cons

                  • Messy

                  Best Uses

                  • Indoor
                  • Wood Trim

                  Comments about System Three T88 Structural Adhesive:

                  I used this product in several traditional wood boat construction, specially in gluing 1/16th mohagany, on spanish cedar in control temperature.
                  It become difficult to glue when the temperature dropped below 60 degrees.

                  • Was this a gift?:
                  • No

                  (0 of 1 customers found this review helpful)

                   
                  1.0

                  poor produce

                  By epoxy 101

                  from united states

                  About Me Advanced

                  Pros

                    Cons

                    • Difficult to Use
                    • Messy

                    Best Uses

                    • Outdoor

                    Comments about System Three T88 Structural Adhesive:

                    Product runs when applied in a vertical position. Very runny. I expected a much thicker working consistency. Dries hard but is not feasible for use in vertical construction applications.

                    (1 of 1 customers found this review helpful)

                     
                    5.0

                    Bombproof adhesive!

                    By Barley

                    from Montauk, NY

                    About Me Professional

                    Verified Reviewer

                    Pros

                    • Easy to Use
                    • Good flexibility
                    • Protects Well
                    • Weather Proof

                    Cons

                      Best Uses

                      • Outdoor
                      • Shellfish growout gear
                      • Wood Trim

                      Comments about System Three T88 Structural Adhesive:

                      We use this for all wood joining in our shellfish growout gear from wooden block tops and gear boxes to 20' long growout rafts. It is a bit messy but all adhesives are, just be prepared. It dries to a slightly flexing finish which is great for the rafts as the adhesive doesn't crack when the rafts flex.

                       
                      4.0

                      System Three T-88 Structural Adhesive

                      By BobB

                      from West Greenwich, RI

                      About Me Recreational

                      Pros

                      • Weather Proof

                      Cons

                      • Messy

                      Best Uses

                      • Outdoor

                      Comments about System Three T88 Structural Adhesive:

                      I used the T88 epoxy to joint parts of adirondack chairs that I am building. They will remain out of doors once completed, and I want them to last a long time. The product is easy to work with, and the gap filling property is appreciated since the T88 is not one that flows readily.

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