In the process of removing tint from the rear windshield I removed the rear pillar covers and then the connectors to the rear defogger. Well on the left side the male connector came off when I went to remove the female connector. I checked the continuity from the tabs of the broken connector on the left to the connector on the right and got a signal, this told me that the rear defogger grid was intact and would work if I could get the male connector reattached so I ordered this product because it was recommended. I reattached the left male connector using this product and the rear defogger no longer works so I am looking at shelling out over $300 on a new rear windshield in order to fix the issue as this product did not work. Also found it a bit difficult to work with as the product itself was far to runny and not nearly thick enough like regular epoxy is to work with so in all my years of working on cars I can't say I was terribly impressed in fact it was a bit frustrating to work with.

This is the second time I have attempted a repair with this product. I followed the video instructions to a tee as recommended by other reviewers. In spite of my impeccable preparation, I was not able to achieve electrical continuity. The glue successfully reattached the tab to the window, but no current gets through. I was able to wedge some copper wire strands between the 2 cement points on the tab to obtain continuity. There was space here in my application (Honda Civic) to get wire between the grid and tab after cementing. So, I give this product 2 stars since I was able to rig it to get it to work. Otherwise, one star. The adhesive does work but don't expect it to conduct electricity.

So far so good - seems to work great! I repaired the connection about a week ago, and made sure to watch a video so I followed the right procedure. At this point it's holding and everything seems great. If that changes I'll update this review.

Followed the advice of other reviews and carefully followed and prepped according to the instructions and video (someone posted a link). Since the installation I've used the rear defogger twice and boy does it work! I think it actually works better than prior to it falling off.
I'll just see how long it stays attached, but so far so good.
Update: Still have voltage but lost continuity so defogger doesn't work but tab is still attached.

I followed the G. Perrin's extensive review to the letter. It did not work. So I broke the Permatex bond and then noticed that there was no silver copper at the attach point (I bonded only to the window). When I originally cleaned the area and then bonded it, it was not bright silver but dull grey/black in color. I thought that was just aging of the copper, however what happened, when the vehicle's original soldered puck broke off, it took with it the original windows copper lining (a much bigger area than just the attach point). So I went to Ace Hardware, bought a $2 .008 inch thick tinned steel shim and cut it to follow the original window's copper line for a total length of 3-4 inches keeping the same width (about .5 inches wide) and contour. Then I soldered the puck (which is what the car electrical wire attaches to) to this .008 thick shim. Then I lightly sanded the window's copper lines for this 3-4 inch length and used the remainder of the Permatex to bond this tin steel strip to the window's copper line. Now it works fine.