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G/flex 650-K Epoxy Repair Kit

Item: 50200.01 | Product Description »

$26.75

  (8) | Write a Review | Ask a Question | 2 Questions

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Liquid G/flex® Epoxy Adhesive in kit form. Two 4 oz. bottles of resin and hardener, complete instructions and application supplies. Waterproof, flexible repairs on plastics, fiberglass, wood, etc.
  • Note: The packaging now refers to this product as Aluminum Boat Repair Kit. Please be aware that this is still the same great adhesive that works on a wide range of materials.
  • The 650-K kit contains 4 oz. each of viscous liquid G/flex 650 resin and hardener. Mixing ratio is 1:1. It also includes two reusable mixing sticks/applicators, two 12-cc syringes, four grams adhesive filler (colloidal silica), four mixing cups, one pair disposable gloves, four alcohol cleaning pads and complete handling and repair instructions.
  • Mixed G/flex 650 is of a heavy "syrup" consistency. It will run off a vertical surface. The adhesive filler that comes with the kit can be used to thicken it to your desired consistency. Complete mixing instructions are included.
  • G/flex is a product of West System, a division of Gougeon Brother's, Inc. The Gougeon brothers have been using epoxy resins in boat building and repair for some 50 years.
  • It makes structural bonds that can absorb the stresses of expansion, contraction, shock and vibration.
  • G/flex works very well to bond hypalon to hypalon or wood.
  • In addition to its superior bonding to many different materials and its ability to bond dissimilar materials, G/flex is much more flexible than other epoxies. This is an excellent property for boat building and repair.
  • Polyethylene (HDPE) is a common kayak and canoe material. Its molecular structure resists gluing by most adhesives. G/flex solves the problem; it bonds well to polyethylene and ABS plastics.
  • Many boats are made from aluminum, G/flex works well for repair seams on aluminum boats and for adhering patches.
  • At 72 degrees F pot life is 45 minutes. Working time is 75 minutes. It cures to a solid in three hours and cures to its full strength in one to two days. It cures faster in warmer temperatures and slower in colder ones.
  • Clean up is simple. Wipe up spills with absorbent materials. Clean residue before it cures, with alcohol or acetone.
  • G/flex adheres tenaciously to difficult-to-glue hardwoods, both tropical and domestic varieties.
  • It has the ability to glue damp woods. It can be used on wet surfaces, even underwater when applied with specific techniques.
  • G/flex does indeed belong in every boater's repair kit. The more you use it, the more uses you'll find for it - with your boating gear and other sporting and household items. It's easy to mix and use. The instructions that come with the kit are top notch.

All sales of flammable items are final.

Product Reviews

  (8)

Related Videos

  • video: G/flex Epoxy Kayak Challenge Video
    G/flex Epoxy Kayak Challenge Video
    Length:2:55
  • video: How To: Inflatable Repair Adhesives Guide
    How To: Inflatable Repair Adhesives Guide
    Length:4:16
Includes:
  • 4 ounces each of thickened G/flex® 650 resin and hardener
  • 2 reusable mixing sticks/applicators
  • 2 12-cc syringes
  • 4 grams adhesive filler (colloidal silica)
  • 4 mixing cups
  • 1 pair disposable gloves
  • 4 alcohol cleaning pads
  • Complete handling and repair instructions
Features:
  • Mixing ratio of 1:1
  • Pot life: 45 minutes at 72 degrees F
  • Working time: 75 minutes at 72 degrees F
  • Cures to a solid at 72 degrees F
  • Reaches full strength in 1-2 days

video: G/flex Epoxy Kayak Challenge Video

G/flex Epoxy Kayak Challenge Video (2:55)

G/flex Epoxy Adhesive belongs in every boater's repair kit. Get a waterproof, flexible bond on plastic, fiberglass, aluminum, etc.

video: How To: Inflatable Repair Adhesives Guide

How To: Inflatable Repair Adhesives Guide (4:16)

When repairing your Hypalon, PVC or urethane inflatable, or your plastic or composite kayak, it's vital that you choose the right adhesive and solvent for the job. Using the wrong materials will result in a poor repair and wasted effort. In this video, Josh from NRS Repairs shares an inflatable repair adhesives guide to help you understand when to use such glues as Clifton Hypalon, Shore, Stabond, Clifton Urethane, Vynabond and G/flex Epoxy. Solvents for repair prep are important too; you'll also learn when you can use toluene, MEK, acetone and alcohol.

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2 Questions | 8 Answers
Displaying questions 1-2
  • G/flex Epoxy Repair Kit - 650-K

    Q:

    What is the shelf life of the product once the containers are open? Not pot life or open time of the mixed product.
    Asked on 5/17/2014 by Bruce from Colorado

    1 answer

    • Staff Reviewer

      A:

      Bruce, I think it's fairly indefinite, as long as they're capped and kept in moderate conditions. I'm still using a couple of the 655 tubes (the thickened version) after 4-5 years.

      Answered on 5/17/2014 by Clyde from NRS
  • G/flex Epoxy Repair Kit - 650-K

    Q:

    My royalex canoe has some pretty good dings and scratches that I would like to at least fill in and smooth out. Color isn't important.

    Would this product work for that or do you have a different recommendation?
    Asked on 9/19/2012 by gary

    7 answers

    • VERIFIED BUYER

      A:

      Hello Frieds,
      I used this product but for a plastic kayak restoration, not aluminum. I
      tried two other epoxy options before but this is the one. I have used my
      kayak many times after the repair and the restored zone is in pretty
      condition; this epoxy is very resistent. I do recommend it for you.
      regards

      Answered on 9/19/2012 by Anonymous
    • VERIFIED BUYER

      A:

      I've used G/Flex 650 to repair several fairly long (8-10 inch) cracks
      completely through the hull of a royalex canoe, and subsequently run class
      3+ rivers a number of times. The G/Flex repairs held up perfectly. I see
      no reason you couldn't use it to repair dings, dents and scratches also.

      Answered on 9/19/2012 by Anonymous
    • VERIFIED BUYER

      A:

      This repair kit will do the trick. I used it to repair some dings that and punctures that didn't go all the way through the hull. The repairs seems very strong and durable.

      Answered on 9/19/2012 by Anonymous
    • VERIFIED BUYER

      A:

      You have the right product! I've used this on my Mad River royalex (I have
      to go back and see if I can find the rocks I missed) and have proven to
      myself that I can now glue anything to anything.
      Hope this helps, Roy

      Answered on 9/19/2012 by Anonymous
    • VERIFIED BUYER

      A:

      I have talked with the folks at west systems. The do say and have
      web article evidence that this product will stick to ABS royalex.
      The method though would be to mix the epoxy and fill the cuts and
      dings but then put packing tape over the epoxy while it cures. This
      will help keep the epoxy flat and smooth. West Systems does
      recommend flamming the Royalex still to oxidize the plastic for a
      better hold.

      Answered on 9/20/2012 by Anonymous
    • VERIFIED BUYER

      A:

      I use this product on my Current Designs Kevlar / Gel Coat kayak and it
      works great. I've patch road rock gouges, cracks, and dings. Got Gel Coat
      colors online to mix in. Patch / fill with a Popsicle stick , smooth out
      with saran wrapped finger (dipped in water), buff with high grain sand
      paper & steel wool, and wax!!!

      Answered on 9/20/2012 by MH from CA
    • Staff Reviewer

      A:

      Yes, this will work for your canoe. Take a look at this article on our website - http://www.nrsweb.com/tech_talk/GflexEpoxy.asp - there's a link in it to an article on the repair of a Royalex canoe.

      Answered on 9/21/2012 by Clyde from NRS
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REVIEW SNAPSHOT®

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GFlexG/flex Epoxy Repair Kit - 650-K
 
4.6

(based on 8 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (3)

  • 3 Stars

     

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100%

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Pros

  • Easy to use (6)

Cons

    Best Uses

        • Was this a gift?:
        • No (8)

      Reviewed by 8 customers

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      4.0

      Used as an adhesive

      By clong

      from Houston, Texas

      About Me Casual/ Recreational

      Verified Buyer

      Pros

      • Can Use In Wet Environmen
      • Easy to Use
      • Flexible
      • Weather Proof

      Cons

        Best Uses

        • Adhereing Different Matl
        • Outdoor
        • Quick Fix

        Comments about G/flex Epoxy Repair Kit - 650-K:

        I glued d-ring patches and closed-cell foam pieces to an aluminimun boat. It was easy to mix the epoxy and resin. It required no measuring, simply equal parts of the epoxy and resin. The kit came with gloves, mixing cups, and mixing sticks.

        • Was this a gift?:
        • No
         
        4.0

        Worked on inflatable

        By B-rad

        from Modesto,ca

        About Me Casual/ Recreational

        Verified Buyer

        Pros

        • Worked well

        Cons

          Best Uses

            Comments about G/flex Epoxy Repair Kit - 650-K:

            Worked to seal floor on zodiac.

            • Was this a gift?:
            • No
             
            5.0

            Great for kayak repair

            By Kayak Al

            from Pendleton

            Verified Buyer

            Pros

            • Easy to Use
            • Great bonding
            • Great for wood to wood

            Cons

              Best Uses

                Comments about G/flex Epoxy Repair Kit - 650-K:

                Used to re-seal foam bulkhead to plastic kayak hull. Also used to join wood to wood for a small gate - great adhesion for both projects. Kit had everything necessary for application

                • Was this a gift?:
                • No
                 
                5.0

                This can revive a dead boat

                By Skook

                from Schuylkill County, PA

                Verified Buyer

                Pros

                • Durable
                • Easy to Use

                Cons

                • Pricey

                Best Uses

                • Cracks
                • Deep gouges
                • Holes

                Comments about G/flex Epoxy Repair Kit - 650-K:

                Works great on most PE boats and can get you a few more seasons out of a cracked boat.

                • Was this a gift?:
                • No
                 
                5.0

                Great Product

                By X-Ray Tech

                from Tylertown, Ms

                Verified Buyer

                Pros

                • Easy to Use
                • Simple to mix

                Cons

                  Best Uses

                  • Aluminum Boat
                  • Bathtub Cracks

                  Comments about G/flex Epoxy Repair Kit - 650-K:

                  Bought this product to repair my aluminum boat leaks, but in the meantime my daughter's bathtub got a six inch crack in it that every time she got in the tub the crack would open to about a 1/4 inch. Decided to try G/flex on the tub and it worked like a charm. No more leaks and I don't have to worry about buying a new bath tub!!!!!

                  • Was this a gift?:
                  • No

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