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Loctite 37438 Rear Window Defogger Tab Adhesive is a compact, electrically conductive adhesive kit designed for quick, tool-free repairs of rear window defogger tabs. This all-in-one kit includes adhesive, an applicator, and instructions, enabling drivers to restore defogger functionality efficiently and cost-effectively, ensuring clear visibility in wet or foggy conditions.





| ASIN | B0002JMLMO |
| Best Sellers Rank | #69,715 in Automotive ( See Top 100 in Automotive ) #115 in Body Repair & Restoration Adhesives |
| Brand | Loctite |
| Customer Reviews | 3.8 3.8 out of 5 stars (622) |
| Date First Available | April 10, 2009 |
| Exterior | Machined |
| Item Weight | 0.317 ounces |
| Item model number | LOC194080 |
| Manufacturer | Loctite |
| Manufacturer Part Number | 194080 |
| Model | Adhesive |
| OEM Part Number | 21351 |
| Product Dimensions | 6.5 x 3.81 x 0.4 inches |
| Special Features | Electrically conductive, rear window defogger tab bonding |
S**.
Works like a champ
Unsure what the negative reviews had happen with theirs, but I followed the instructions to the letter when attaching it and my defroster tab is once again secured to the window. I waited 2 days before rewatching the wire to it however, as I was in no rush. Nice to have it working again to take the morning fog off the window, and will be really nice this winter!
H**Y
Waste of time
I do a lot of board level electrical repair, but I wasn't familiar with the construction of the rear defrost system. I bought this adhesive thinking I'd save time. Wrong. After following the instructions to the letter, I turned on my defrost (after 48 hrs to cure). Nothing. My ohmmeter told me the truth...I had a faulty repair. So, after research, I decided to get some silver solder and repair it myself with my soldering gun. Well, this crappy glue was gooey and impossible to remove which made it impossible to repair AT ALL. So, $15 later, I am screwed! Now I can't even repair it the right way! DON'T BOTHER WITH THIS STUFF...JUST GET A SOLDERING GUN AND SOME SILVER SOLDER AND DO IT RIGHT!!!
A**N
Very easy to apply
Very easy to apply
D**L
Good repair
1 year later, Zero issues. Fixed it right the first time.
T**B
It works
I had my doubts, but after 2 years the tab has not fallen off, and the window that it's on is hinged, so it gets swung open and closed during use. Still attached....
B**N
Soldering will work better
Read all the reviews and followed the directions to a T, even as everyone else stated what to do. And it still didnt work.
C**.
Product worked almost as stated.
Needed both rear window defroster tabs put back in place. First used PermaTex. Even after following directions to knead, it was runny and had to be taped into place for 24 hrs to set. It did set up, seems to be holding fine. Not being pleased with the Permatex product, decided to try LocTite which I had to order. Again followed directions, kneading it until correct consistency. Much thicker and applied well. But again it did not adhere within 5 mins as stated on pkg. So it was also taped for 24 hours. It set up a bit faster. Both tabs appear to be staying in place, haven't had to use defroster as yet. Either product will re-set defroster tabs but take your time, expect to tape them into place for at least 24 hours. It will save an expensive trip to mechanic.
A**R
Heated backlight terminal failure.
I used this to replace an electrical tab that had snapped. This adhesive held the tab well, but only conducted enough current to clear the window a few times. Tested and found the resistance of the joint had increased. *** Instead, use an epoxy with a significant silver content. These are expensive! ***
F**C
Je recommande le produit
Fonctionne très bien pour une réparation du dégivreur dans la vitre arrière d’un véhicule. J’ai collé le fil à la vitre et c’a tient depuis déjà 1ans.
A**N
منتج فعال من لوكتايت بالرغم من غلاء السعر
اتبعت التعليمات تماما .. نجحت التجربة وتم الصاق القطعة المعدنية مرة اخرى على الزجاج مع ملاحظة اني قمت بازالة اللحام المتبقي و صنفرته ليكون سطح ناعم نوعا ما قبل تركيب القطعة المعدنية... الان مزيل الضباب يعمل والقطعة ملتصقة بشكل ممتاز منذ شهر تقريبا. عيبه الوحيد هو ارتفاع السعر النسبي لاستخدام واحد!!
K**Y
Didn't work
Purchased on advice of my window repair man. Followed directions closely and allowing drying time. Would not cure/tack and solidify to adhere to rear window.
K**1
DIY
Expensive, but if you drive in winter conditions without defrosting your windows, well you are a danger on the roads. Just my opinion as a professional driver.
T**T
Delivray
Very good
Trustpilot
1 month ago
2 weeks ago