G/flex 650 is a new epoxy introduced by WEST SYSTEM in mid-June 2007. A toughened, versatile, liquid epoxy for permanent waterproof bonding of fiberglass, ceramics, metals, plastics, damp and difficult-to-bond woods. G/flex offers these important features:
Kit Contains Epoxy
Filler and More
|Cure Time||7 to 10 Hours (Working time: 45 Minutes)|
|Type||Two-Part Epoxy Resin|
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Reviewed by 1 customer
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Comments about West System G/Flex 650-K Aluminum Boat Repair Kit:
I have beat my boat so bad on Lake Erie that I had five cracks on the corner break where the hull bends down to the transom two days before the first spring walleye tournament. I bought the G/flex 650k hoping to fix the cracks that I had that were starting to cause my bilge to run nearly continuously because there was no way I could get it welded with tournament season just getting ready to start. After hours of trial and error trying to patch the bottom side of the boat, I found that I had to mix in enough hardener to make a very, very thick paste as I mixed this product. After several unsuccessful attempts to keep it from dripping down on me as it set up even as paste-like as it was, I found that I had to let the mixed up epoxy sit in the mixing bowl for roughly a half hour before applying it. Also temperature control of 60 to 70 degrees in my garage seems to work best. I have run my boat as hard as ever since early spring when I first patched those holes with no further issues arising where I had patched it. In the final tournament this fall, I also cracked the main weld on the keel of the boat roughly 14" in length and that was a severe crack that almost sunk us before we made it back to the ramp. I also patched that crack with the same kit of G/Flex 650k and have had the boat airborne in 3 to 4 footers for long runs a few times since to test it out and it seems to be holding up just as well as the smaller cracks in the panels have all season long. This stuff is very messy and hard to work with but it really is a cheap alternative versus having someone disassemble the boat to weld it up from the inside behind the foam. I have considered coating the whole hull of my boat with this stuff as it seems to be more durable than the .100" thick panels are.