Back Window Defogger Electrically Conductive, Silver Epoxy Adhesive Repair Kit 2.5 Grams

Product arrived as shown in picture, a small see-through, rectangular pouch with two compartments. One side was a clear liquid, the other a silver powder. They were separated by a sealed barrier. I prepped the work area with my tools: fine grit sandpaper, acetone for glass prep, paramedic scissors, a small piece of paper to mix it on and a heat gun. I sanded the copper traces and cleaned the area with acetone. Then I squeezed the pouch, piercing the internal barrier. I kneaded the liquid into the powder with my fingers. I worked the mixture until it was a slow moving paste. The previous tab had been ripped off by a bad tinting job, so there was copper missing from the rear glass. To solve this, I purchased a thin copper shim from the internet. The shim was twice the surface area of the missing glass copper. So, prior to the defroster repair, I soldered a small wire(the same diameter as the power supply wire)to the shim. I then applied the paste to the bottom of the copper shim in a heavy bead. I pushed the tab against the window and held it up with a small wooden dowel. With the other hand, I focused hot air with a heat gun directly on the copper shim. I held it there for approx. 5 to 7 minutes. I removed the heat, then continued to hold the copper shim against the glass. I placed some duct tape over the shim and wire and left it overnight. I came out the next day and removed the duct tape. The epoxy had hardened to the consistency of concrete. I placed the wire tab into the connection of the power wire and turned on the defroster. Success!!!

Terrible. Followed all instructions correctly. The product did harden, but didn't keep the tab in place. (Even though I used a tape to do so). It just fell off. And there isn't enough of the Epoxy to try it again.A waste of money...

easy to use

Used in my Subaru Outback and it actually works! I was able to apply it during the winter, but you need to use heat.Here's what I did...Lightly sanded the area to reinstall the defroster tab with 220 grit sandpaper. After this, I wiped it all down with isopropyl alcohol. Upon drying I followed mixing instructions that were on the package, then GENEROUSLY applied it on the tabs - then I used some folded up cardboard (see pics) to sort of wedge the defroster appliance between the window frame and the window (again, see pics). Afterwards I smeared even more product on. Then, I propped up my radiant heater and aimed it at the spot where the tab was reinstalled and left it there for a full 24 hours. At this time the product was hardened, so I plugged it in and it still held great. A few days later it snowed and I was able to test it out - AND IT WORKS!!! Wooh!!!Highly recommend this product.

Reattached the (originally) soldered on connector to rear window defogger glass. Not used to trying to mix epoxy within a sealed package, but it seemed to work ok, just too early to tell after 1 week. The amount provided seems insufficient to complete even the smallest projects.

I used this epoxy in early summer for a rear defroster connection that had broken off when a replacement rear glass support came loose and took the connector out. Some reviewers have had issues with this product, but I made sure to do the prep work to try to avoid issues. I made sure to clean all the contact surfaces down to bare metal with sandpaper, used rubbing alcohol to get off any sanding residue, and made sure to bend the tabs back so it would sit flat and make good contact. I also gave it over 24 hours curing time before even moving my car. The trickiest thing was keeping it in line while using masking tape to hold it in place until it cured.Today my rear window is defrosting just fine with a connection that appears just as secure as before, and I have now had several good cold October nights/mornings to really test it. I can easily see that if you don't clean the contacts well, position it just right, and give it plenty of time to cure in the right temperature conditions you could have issues. But if you do the prep work it should work fine for you too.

Soldered my button to the window but it’s a cold weld and doesn’t last. My mistake was not cleaning off the solder on the terminal and that will make epoxy a weak bond. Make sure you clean all solder off and the connection will last. Lastly it’s a good idea to use a heat gun to cure it quickly just don’t pour water or let rain hit the glass. I used a tarp.

Used this in 75 degree weather, reattached my tab and waited for 2 days. Reattached the wire and it pulled right off. Lost my money on this stuff