I've been using this stuff for years. It's very handy for bonding metal or plastic together or for fabricating things with it. This isn't an epoxy like in the sense of a glue or adhesive, per se, although it can be used for that in the right applications. Basically it's a plastic-like putty that you can form and shape and then it hardens in a few minutes.Here's some examples of different ways that I've used it.I got a headlight for my bicycle but the mount was too big for my handlebars. That is, it was made to mount on a bigger diameter handlebar. So I used this putty to build up a ring about a quarter inch thick and an inch wide all the way around the spot on the handlebars where I wanted to put the headlight. Using water and my hands, I shaped and molded the putty so it was even and smooth all the way around, and trimmed the edges with a razor blade. Now the handlebar has this ring around it just the right size to fit the headlight mount.The plastic knob on one of the arms of my drill press broke off. It's an obsolete item that's hard to replace. So I just molded some of this putty into a ball about the same size as the original knob, stuck it on the arm, and let it harden. Presto, a functional replacement knob in about five minutes.I lost the cap for a tube of heat sink compound so I made one out of this putty. It screws on and off and seals just as good as the the original.Say you have a plastic thingy you want to attach to a metal plate without using screws or nuts and bolts. Gob some of this putty onto the metal plate and then press the plastic thingy firmly down onto it. Use a knife to trim away any excess before the putty hardens.Once this putty sets, 5 or 10 minutes depending on room temperature, etc., it's very hard and strong. You can't really machine it like metal or plastic, so you have to shape and mold it before it sets, but once set, it's durable. It's water proof and holds up against contact with various solvents. It also is electrically non-conductive - a paper thin section of it has >100 M.Ohms resistance according to my own bench tests.It's easy to clean up off of metal or plastic using water or isopropyl alcohol... BEFORE it hardens.It is rigid and brittle, so you don't want to use for something that flexes and bends or has to move in contact against something else. This brittleness does make it easier to remove later if you need to. You can use a hammer and a flat screwdriver to easily chisel and crack it off.A dremel wheel melts right through it like butter.After you mix the putty to a even and consistent gray color you have about 5 minutes or less to shape and mold it. Before it sets, you can use water or isopropyl alcohol to help smooth and round it, and as lubricant to keep it from sticking to whatever while you mold it into shape.around some surface.Before it sets you can wash it off your fingers with soap and water. After it sets use fingernail polish remover and a green scrubby pad!I wouldn't recommend using this putty for something that needs to pull a lot of weight... like a link in chain, or for a life-dependent application like sealing a leak in your oxygen dispenser tubing. But if you want to stick a bunch of aluminum cans and or plastic bottles together at odd angles to make art, or to fill in the broken off metal or plastic piece of some appliance, then this may be just the right stuff for you.St. Patrick's pointer finger snapped off (and disappeared) when he fell over and I had to try and fix it! I was so nervous to find the right product, especially because there was very little surface area that would be bonding, it was so tiny, and it had to be able to stand up to sanding to be able to get it into the right shape. I haven't painted it to match yet, that will next! I'm SO HAPPY with how easy the putty was to work with, how permanently it bonded and how well it held up to sanding. Seems so rare that a product does everything it says it will - but this worked exactly as advertised and I couldn't be happier with the result!I had a hole in my metal railing. This did the trick ( I had to first put something into the hole to give it backing but the metal putty made it hard and paintable)I used this product to repair some painted steel patio furniture that had developed rust holes in the metal. This is pretty much like Bond-o, and you can work it with ordinary sandpaper and get good results. I used it for cosmetic repair and it has held up fine so far. Not sure if I'd use it for anything structuralMy son who works with a similar product said it took to long to harden. Threw it away.This stuff is great. Mix and apply. You can really drill it, too. I've used it for multiple repairs.The two part epoxy paste sticks to everything it touches, esp. the skin and the fingers. To mix the paste (and thus catalyze the epoxy) and still have it usable I suggest covering your fingers/hands with polyethylene plastic food storage bags and then wear fresh bags when molding the mixed epoxy putty into the places you want to use. This technique is still messy but effectively keeps your fingers and hands free and MOST IMPORTANTLY allows you to compress the epoxy (pack solidly) into any unusual shape you need to fill a void/gap that you are trying to repair.I fixed my molding/fit issues by wet sanding the cured epoxy with 220 grit wet/dry sand paper. What a difference! The cracked plastic case is now whole and smooth. I am ready to drill a new mounting hole.I will update my critique when I have additional results to report.Works well, I uses it to patch nail holes in aluminum sidingIt was great for fixing holes in my aluminum boat...employet a date éfficaceer por régler une petite fuite d essence sans pressionmuy bien todo