G/flex Thickened Epoxy Adhesive Resin and Hardener has a thickening agent, and is a toughened, versatile epoxy for permanent waterproof bonding of fiberglass, ceramics, 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.
Choose from 4 different sizes of resin/hardener: 8 oz. kit, 2 Quart kit, 2 Gallon kit, 4.75 Gallon resin only, and 4.75 Gallon hardener only.
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G/flex is a tough, resilient epoxy engineered for a superior grip to metals, plastics, glass, masonry, fiberglass, and wet and difficult-to bond woods.
It is currently available in two versions: G/flex 650 Epoxy (sold separately, a two-part (resin and hardener) liquid epoxy, and G/flex 655 Thickened Epoxy Adhesive with a thickening agent already added.
G/flex is easy to use with a simple 1:1 mix ratio. It has a 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.
WSY-655-8: 8 oz. of mixed epoxy (one 4 oz. resin and one 4 oz. hardener).
WSY-655-2QT: 2 qts. of mixed epoxy (one quart of resin and one quart of hardener).
WSY-655-2G: 2 gallons of mixed epoxy (one gallon of resin and one gallon of hardener).
WSY-655-CR: 4.75 gallons of RESIN ONLY
WSY-655-CH: 4.75 gallons of HARDENER ONLY
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.
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will this seal a leaking hot tub PVC manifold that has 4 flexible PVC hoses in it. Does it stick to flexible PVC if I make a form and pour it in.
Generally speaking this product won't really "pour", it "shmears". I don't think it will stick well to pvc.
This product is not recommended for your application. It does have some adhesion to PVC, but under pressure and that type of flexibility, this product should not be used for your application.
JD Tech Associate
Is the thickened G-Flex 655 thick like a putty or peanut butter after it is mixed or would I need to mix in some 404 high density filler? I need to fill some gaps around a polyethylene water pipe. Also does this epoxy have a shelf life?
Hi Ken,G-flex has some thickness to it but not as thick as peanut butter. I use G-flex in applications where I would like "flex". Like filling core that I intend to screw into etc.Adding filler would counter act the flexibility I was looking for. Something like microlight might be OK depending on what you are doing. If epoxy has a shelf life it is many years.Jeff
For what you are using it for,l would mix in a little thickener.Keep it in the refrigerator,it will last longer
Its great for filling gaps. It will slump if your get too wide...put a little 200 mesh silica sand in the mix. Ive had mine a couple years and its still fine.
do i need to mix epoxy resin with epoxy hardener to get a best result?
Yes. I have followed the manufacturer's instructions mixing equal parts of the resin and hardener. I have had excellent results every time.
yes you do. That is how epoxy works.It won't harden otherwise.
They must be mixed together in equal portions. Its a two part epoxy. Wear gloves it is very sticky.
My curved helmsman seat (Baltic 38 DP) was built with two layers of 0f 1/4" thick teak. The top layer is gone but the bottom layer is quite good and still well adhered to the fiberglass seat. I need to replace the top 1/4" layer of teak and need advice as to which epoxy product to use. the Top layer was originally glued to the bottom layer with what appears to be a black two part epoxy adhesive. I assume a G-Flex type material ?? Please advise James P. ( Phil ) Scalise
James P. Scalise
Gflex would work well for teak.
Will be using two carbon fiber rods to repair a surfboard that was broken in half. The rods would need to be secured into the epoxy (EPS) foam board via some sort of glue or resin. Would like that resin/glue to be somewhat flexible to it can give a bit with the natural flex of the repaired surfboard. Do you think that your product (WEST System G/flex Thickened Epoxy Adhesive Resin & Hardener Kit) would work for this application?
It depends on the geometry of the various parts. I would advise that you contact the West Epoxy tech line.Take some photos of the parts first then call them. They have helped me every time I called.They have fixed everything at least once.Good Luck.J.Peter
I have used the G-Flex on a hard ridden canoe bashing rocks and broaching in shoals. this stuff is great and bonds to about anything. what I like is that it doesn't melt the underlying material but adheres to most anything. I've seen canoes cut in half and held together with G-Flex. Good stuff... FOLLOW THE DIRECTIONS.........
Jerry C;Has anyone used this epoxy to glue white oak? Will it hold up? If not, what glue or brand of epoxy would work?Thanks
I bought this epoxy specifically to fashion a recoil suppressor in the fiberglass (hollow) stock of a big caliber rifle I own. A major part of the "filler" - the part the cylindrical suppressor fits into - is a piece of quarter sawn white oak which I liberally coated with the glue, inserted into the stock, let it sit overnight and was then able to assemble all parts the next day. It works great. So well in fact, I sent a package of the epoxy to an excellent gunsmith I know, and he is entirely pleased with his results as well.Good luck.
Sorry cannot help as not used it on White Oak.Tom Pawlak has been very helpful recently on advise I needed and well worth checking him.Good luck
I used G/flex (the thicker stuff) to laminate 70+ new white oak frames. I coated both surfaces with un-thickened resin/slow hardener then applied the G/flex. The WEST tech support folks suggest sanding with 80 grit then wiping the surfaces with alcohol to remove any dust. All indications from my work and experience from professional shipwrights show no failures. But DON'T over clamp.
Have only tried it on a plastic (polyethylene?) swimming pool staircase and it works great, even though it was submerged all last summer.
I am attaching porcelain tile to a metal table for use outdoors. The tiles had been attached with thinset and water had penetrated and rusted the metal and the tiles came off. after grinding the metal and the backs of the tiles could i completely coat the metal with Gflex(thickened or not?) to prevent rust and and adhere the tiles and then use a Latacrete epoxy grout?
I like the viscosity of the product and the (seeming) fact that a sudden jolt would not break the bondÂ’Â¢?_but my use was in a heavy art frame and has little to do with your application. Seems like it would work Â’Â¢?_.but I am guessing.
We suggest putting a layer of UNthickened GFlex on the metal, then use Thickened Gflex to adhere the tile. Be sure the surfaces are freshly sanded before putting down the GFlex. We know nothing about Latacrete....
I would think that as long as you removed all of the rust and covered the metal completely with g flex it will work. The gflex will hold the tile without question .
What would be your recommended epoxy for fixing a plastic door panel on a truck? I was thinking of using it along with fiberglass patching to add strength.
It will work well in that application
Absolutely, you can use Gflex on anything plastic or fiberglass. Recently I repaired my dogs plastic pooper scooper in 3 places. The first time it cracked, Gflex held it. It broke in 2 more places but the original Gflex never let go. IÂ’Â¢??ve also used it to repair the bumper cover on several cars. The one IÂ’Â¢??m working on now is my fatherÂ’Â¢??s Mercedes. He does not seem to notice curbs in parking lots. He ripped the bottom off the bumper. I took it off the car, stitched in place with some wire, applied the Gflex to bond the plastic, then removed the wire. It held great. That stuff is strong and so easy to use, no waste. If you have a small repair, lay down 1/2Â’Â¢?? of each. Good Luck!
it is not easy to work into a smooth surface, but it will hold well. it is thick and sticky and resists sanding with all but the most aggressive grits.
Is the thickened G/flex can be sanded smooth and painted over?Thank you
yes, it is wonderful stuff
How is the 2 quart item packaged? I realize it is 1 quart of hardener and 1 quart of resin, but how are these quarts packaged? Tubes? What? How do they dispense?Frank
they are in individual quart tins that are packaged together in a box. If my memory serves me (which often my wife claims it does not) you have to scoop the resins out of the tins. I used cheep automotive bondo applicators to go get the goop out and mix.Bill
Like large toothpaste tubes with screw tops? or some other type of tube?Frank
Easy to apply
I would probably give 5 stars but I have witnessed performance over time. I really like the thickened product which makes it easy to mix and apply and has a good working time. I repaired scratches dings and gouges in my royalex/vinyl canoe. My putty knife a over spread cleaned up well with acetone.
It does what it is to do.
Worked as Advertised
Purchased the 2 quart kit and used it to attach a polyethylene riser to a fiberglass septic tank.No fasteners were used and the epoxy formed a permanent waterproof bond below grade to prevent the intrusion of rain water. Well worth the expense. Do it right the first time and never look back.
I use the product to fill cracks and voids in natural edge slabs. The wood I use is oily. I have had no issues with bonding at all. I have been using this product for about 10 years now.
G/Flex to my rescue
I have owned a mad river royalex canoe about 30 years. At one point the gunwales were not released when I lived in Fairbanks AK. Winter hit and it resulted in 23 rather extensive cracks. G/Flex 655 was recommended to repair them and it is working wonderfully. I haven't put it back in the water yet but ots Jan in WI Highly recommend it.
very good,user friendly,good working time, good set up time.
repaired cold cracks in older royalex canoe, thick epoxy stayed in place, set well...
west central indiana
actually worked as advertised on cracked royalex canoe...
glad i bought thickened epoxy,,i don't think the standard would have worked in my application..
west central indiana
Knife makers praise g/flex
Many of us who make custom knives use this almost exclusively. Bonding many dissimilar materials can be problematic, but I bond carbon fiber to wood to steel to brass to bone to vulcanized fiber to leather to plastic in any order with consistent success. My only con is high shipping on 2 four oz. bottles!!!!
Canoe is sealed!
Directions were easy to follow!Quick fix, yet permanent!
The G/Flex is a miracle worker
Polyethelene Live well tank in a used boat was cracked. Needed to make it solid. G/Flex didthe trick. Followed the suggested "prep" tipsand the tank is watertight.