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G Flex epoxy kits Aluminum boat repair 650-K
WEST System West System epoxy
  • G Flex epoxy kits Aluminum boat repair 650-K

WEST System G/flex Liquid Epoxy Kits

West System G/Flex liquid epoxy is a toughened, versatile adhesive designed for permanent, waterproof bonds on fiberglass, ceramics, glass, masonry, metals, plastics, damp and difficult-to-bond woods. G/flex epoxy is resilient enough to bond dissimilar materials and flexible enough to absorb the stress of expansion, contraction, shock and vibration.

Available in liquid and thickened formulations, liquid G Flex 650 is a two part (resin and hardener) mixed at a 1:1 ratio. G/flex 655 is also a two part epoxy adhesive, but contains a thickening agent.

Note: 8 Ounce G Flex 650 kits are available in 2 formats: as 4 ounce resin and 4 ounce hardener kits (650-8), or with accessories that include 2 mixing sticks, 2 syringes, 4 mixing cups, 406 Colloidal Silica, 1 pair gloves and 4 alcohol pads (part number 650-K).

IN STOCK - Available for pickup 
Web only. No backorders on clearance products.
$15.93 / kt
List:  $19.91 / kt
You Save:  $3.98
$448.10 / ea
IN STOCK - Available for pickup  
$27.15 / kt
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Tech Spec Product Info User Generated Content


  • Simple 1:1 mix ratio makes G Flex easy to use
  • Long open working time of 45 minutes at room temperature.
  • G/flex reaches a working cure in 7-10 hours and a full cure in 24 hours.


West System Item Number  Description of Kit Contents 
WSY-650-8  Two 4 oz. bottles of liquid epoxy (one 4 oz. resin and one 4 oz. hardener) in a plastic bag. 
WSY-650-K   Clamshell kit containing two 4 oz. bottles of liquid epoxy (one 4 oz. resin and one 4 oz. hardener), 2 mixing sticks, 2 syringes, 4 mixing cups, 406 Colloidal Silica, 1 pair gloves and 4 alcohol pads. 
WSY-650-32  32 oz. of liquid epoxy Kit (one 16 oz. bottle of resin and one 16 oz. bottle of hardener) 

Epoxy Safety

  • Avoid skin contact with resin, hardener or mixed epoxy. Wear liquid-proof gloves and adequate protective clothing to keep the epoxy off your skin.
  • Avoid eye contact with resin, hardener or mixed epoxy. Wear protective glasses. In case of contact with eyes, flush with water for 15 minutes and consult a physician.
  • Avoid inhalation of vapors. Provide adequate ventilation. Wear a dust mask when sanding epoxy, especially epoxy that has not fully cured.
  • Read and follow safety information on resin and hardener containers.
Material: Epoxy
Number Of Parts: Two Part
Type: Flexible Epoxy
4.8 44

Will buy again


Irma took out our outside kitchen, the epoxy glued our granite top close to newaa


Chokoloskee Fl.


Epoxy Kit


I actually used it on the back of an old window I am mosaicing. Two of the windows started to crack so I am trying this product on the back to stabilize the window. So far so good!! It was very easy to apply. I think I am going to put some on the front as well when I am finished and it is grouted. It will be outside as a view barrier all year so that will help preserve it. Thanks so much! Nancy


Shoreline, Washington


Hockey Stick Fix


Fixed up a few hockey sticks with this kit. Worked great.


Grand Rapids, MI


Holds up great in a stress environment - lots of pounding


I use the product to secure stainless pins to high density MDF

Bill the builder

Paradise, CA


650 G/Flex 2 part epoxy


I used your epoxy with carbon fiber tow to repair high end composite hockey sticks. It successfully repaired blade damage, and broken shafts that have been holding up well!!!


Barnhart, MO


Great Product


This is the second time I have used the G-Flex and I love it. Great for canoe and paddle repair.


Nevada, MO


this product works great , fixed two snowboards with it


i know my use for this product is not marine use ,but all the pro snowboarders and skiers swear by this epoxy to repair delamination , and it works very well


riverside ca


Easy to use


Used G-Flex to glue together large pieces of a teak helm seat with dowels. Thicker than regular West System epoxy but plenty of work time. Use acetone to clean wood before gluing. Dries clear. Dried excess sanded off without much problem. Glue lines between pieces are barely discernible and only on close inspection.


Boston, MA


Splicing together the ends of a royalex canoe


I used G-Flex to glue together the ends of a royalex canoe that had been torn in half. I started with a 15' Bell Yellowstone that had a near complete tear amidship. I cut 5' out of the center of the boat and used G-Flex to glue the ends back together. I have not yet taken the boat through any whitewater, but I have floated it in a nearby beaver pond. The seam is strong, waterproof, and seems to retain the flex I want to have in a whitewater canoe.


Intermountain West


west system product that works as advertised


fair price for epoxy, outrageous amount for 2 day shipping ( $100.00 ) could have drove to different store cheaper.




WEST System G/flex Liquid Epoxy Kits



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