Permatex21351 Electrically Conductive Rear Window Defogger Tab Adhesive

This stuff works—just follow the instructions carefully. I lightly sanded my terminals and the two contact points on the rear glass using 400-grit sandpaper, then cleaned them with alcohol and let them dry for a minute or two. After that, I followed the step-by-step instructions on the packaging, and the glue adhered strongly to the window. The rear window heater now works perfectly.Use the accelerator pads to wipe both areas and wait five minutes before applying a drop of glue to each end of the terminal. Let it dry for at least 24 hours before turning on the rear defogger, defroster, or even applying any pressure to the area.

One of the tabs pulled off my rear window glass. Dealer said call a glass company. Glass company said we replace glass not repair it. So I went at least a year with no defroster. I decided to try this even with lack-luster reviews. I filed the tab flat, prepped it as the instructions said, found a good spot and stuck it on. I was pleasantly surprised that it worked perfectly. I got my defrosters back.

Based on feedback I took time to really clean the contact point on the wiring and glass.Followed the instructions with those cleaning instructions, kneeding the material, etc.It is very fluid, I was expecting it to have been a little thicker.No worries, I was able to dab a little on the glass point of contact and then put some on the wiring contact.Not being my first rodeo, I had a small clamp standing by which I gently clamped down until the wiring contact was firmly against the glass but not so much I would risk breaking the contact or the glass.It was mid 70's F and 40% humidity.I left the clamp in place for 7 hours, the glass in the up/open position.After I took the clamp off, the epoxy had a few weeks to cure as the temps were still warm.The first morning I had moisture buildup due to the overnight temps I tested my rear defrost, it worked and I was very happy.... until the next time I tried it.The second time, nothing. It failed.I checked the fuse (it is good) I have voltage running to the contact but nothing is happening.The contact is still firmly epoxied in place, it has not moved and will not move.Something is up with the epoxy that after the first run it seems to no longer be conducting.The TLDR; version:Took excessive steps to prep and install, worked once, now no longer works.

Works as expected. This is the second try since the first time I "cleaned" the area for re-attachment down to the gold colored layer thinking this was the conductive layer. It wasn't. Just use the attached cleaner / activator pad and you will be fine.

Bought it from the store first time for couple dollars more! For some reason or another didn’t work! Stayed on window for about a week! So far this one seems to be working good? If for some reason falls off again i will update review!

**Review: Permatex 21351 Electrically Conductive Rear Window Defogger Tab Adhesive**As an automotive enthusiast with a penchant for DIY repairs, I recently had the opportunity to test out Permatex's 21351 Electrically Conductive Rear Window Defogger Tab Adhesive. Let me tell you, this product exceeded my expectations in every way.First and foremost, the adhesive's conductivity is impressive. It forms a strong and reliable bond between the defogger tab and the rear window, ensuring optimal electrical connectivity. This means that once applied, I can trust that my rear window defogger will function flawlessly, providing clear visibility during inclement weather.Furthermore, I was impressed by the ease of application. The adhesive comes in a convenient tube with a precision applicator tip, allowing for precise and controlled dispensing. This made it easy to apply the adhesive exactly where needed, without any messy drips or spills.One of the standout features of this product is its durability. Once cured, the adhesive forms a strong and flexible bond that can withstand the rigors of everyday driving. Whether facing extreme temperatures, moisture, or vibrations, I have full confidence that the bond will remain intact, providing long-lasting performance.Additionally, I appreciated the versatility of this adhesive. While specifically designed for rear window defogger tab repair, I found that it could also be used for other electrical connections within the vehicle, such as repairing wiring harnesses or securing electrical components.In conclusion, Permatex's 21351 Electrically Conductive Rear Window Defogger Tab Adhesive is a game-changer for automotive enthusiasts and DIYers alike. With its impressive conductivity, ease of application, durability, and versatility, it's a must-have for anyone looking to tackle rear window defogger repairs with confidence. I can wholeheartedly recommend this product to anyone in need of a reliable and effective adhesive solution for their automotive electrical needs.

Didn't work for me. It did seal properly but it didn't electrically connect. Might be my car's connection? Not sure what went wrong?