---
product_id: 1783848
title: "21351 Electrically Conductive Rear Window Defogger Tab Adhesive"
brand: "permatex"
price: "R$207"
currency: BRL
in_stock: true
reviews_count: 13
category: "Permatex"
url: https://www.desertcart.com.br/products/1783848-21351-electrically-conductive-rear-window-defogger-tab-adhesive
store_origin: BR
region: Brazil
---

# Electrically conductive adhesive Weather-resistant durability Complete quick repair kit 21351 Electrically Conductive Rear Window Defogger Tab Adhesive

**Brand:** permatex
**Price:** R$207
**Availability:** ✅ In Stock

## Summary

> ⚡ Fix your rear defogger like a pro—fast, flawless, and weatherproof!

## Quick Answers

- **What is this?** 21351 Electrically Conductive Rear Window Defogger Tab Adhesive by permatex
- **How much does it cost?** R$207 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/1783848-21351-electrically-conductive-rear-window-defogger-tab-adhesive)

## Best For

- permatex enthusiasts

## Why This Product

- Trusted permatex brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Reliability:** Backed by thousands of positive reviews and over 15 years of proven performance.
- • **Instant Grid Bonding:** Bonds defogger tabs to rear window grids in minutes for a seamless fix.
- • **Weatherproof Performance:** Engineered to withstand extreme temperatures and weather conditions without losing conductivity.
- • **Cost-Effective DIY Solution:** Avoid expensive dealer repairs with this affordable, professional-grade adhesive kit.
- • **Universal Fit & Easy Application:** Designed for all vehicles with a simple, step-by-step repair process anyone can follow.

## Overview

Permatex 21351 Electrically Conductive Rear Window Defogger Tab Adhesive is a universal, weather-resistant repair kit that quickly bonds defogger tabs to rear window grids. This easy-to-use, cost-effective solution ensures reliable electrical conductivity and long-lasting performance, making it the go-to fix for damaged rear window defogger tabs.

## Description

Permatex Rear Window Defogger Electrically Conductive Tab Adhesive quickly and easily bonds defogger tab to grid on rear window. Provides a low-cost, high-quality repair for damaged rear window defogger tabs. Complete kit contains everything necessary for a quick repair.

Review: It works very good if you follow given instructions - Let me start with saying that regardless of what are some bad review, it works and it worked very nice for me! Obviously you need to take care of the surface by cleaning it. Follow the simple instructions exactly as they say, and you won’t regret this product! Applied activator after having cleaned surface and the lil connector that need to be stick to rear windshield, let it dry a while (5min), apply conductive glue to part and keep it for a 1min. It worked even though in a vertical position and gravity didn’t bother glue and was perfectly stuck! After 24h it should be fine to use, I personally waited more before using the rear windshield heater. Very nice and good product! Will add some photo, and trust me some idiot before soldered that connector and that’s why it came off and I had to clean the part with a solder to clean it properly from tin soldering residue. Anyway it was easy to use as well and functional, it’s already been 2 weeks and still fine. Will post photos.
Review: Works great and easy to do - Needed to reconnect my rear window defroster ('14 Suburban). I had the other one fixed by the dealer when I bought the car and they made it sound like such a big deal and it took them weeks to get the conductive epoxy they said they needed. This came quickly and was very easy to do. It's been about two months now and my rear defroster is still working great! I love that they package the wipe in such a way that you don't have to hold the chemical prep wipe in your hands. Totally worth it!

## Features

- Quickly and easily bonds defogger tab to grid on rear window
- Provides a low-cost, high-quality repair for damaged rear window defogger tabs
- Complete kit for a quick repair
- Resistant to extreme weather conditions
- Suggested Applications: Rear window defogger tabs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000HBGKWE |
| Automotive Fit Type | Universal Fit |
| Batteries | 1 Unknown batteries required. |
| Customer Reviews | 3.9 3.9 out of 5 stars (4,426) |
| Date First Available | July 7, 2004 |
| EU Spare Part Availability Duration | 5 Years |
| Exterior | Machined |
| Global Trade Identification Number | 00686226213518 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.48 ounces |
| Item model number | 21351 |
| Manufacturer | Permatex |
| Manufacturer Part Number | 21351 |
| Model | Window Defogger Tab Adhesive |
| OEM Part Number | 21351 |
| Product Dimensions | 4.61 x 3.52 x 0.16 inches |
| UPC | 686226213518 |
| Vehicle Service Type | Car |

## Product Details

- **Brand:** Permatex
- **Color:** clear
- **Item Thickness:** 5 Inches
- **Material:** Glass
- **Orientation:** Rear

## Images

![21351 Electrically Conductive Rear Window Defogger Tab Adhesive - Image 1](https://m.media-amazon.com/images/I/914W6fYjSZL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: It says "Apply activator to lead attachment area on window and tab", but then says to not use the activator on the tab. Which is it?**
A: Clean lead attachment than apply activator hold tab on it for awhile until it is holding.don’t plug in cable wire to it for 24 hours.

**Q: Just received this kit and adhesive seems watery, is this normal? I thought it would knead into a putty like adhesive.**
A: I don't recall that it ever got to a paste-like consistency.   The adhesive is sufficiently liquid that it could be mixed up and worked into a consistent color all the while being in the original shipping packet.  I was able to get the tab to attach tightly by coating both the tab and the metal grid with the adhesive liquid.

**Q: Do I re-glue the tab to the same spot as before, or to a different spot in the contact area?**
A: the instructions are with the package, you glue it to a spot where there is conductive material.

**Q: where can i buy defroster tab for my car**
A: They sell them here on Amazon.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works very good if you follow given instructions
*by S***E on January 25, 2026*

Let me start with saying that regardless of what are some bad review, it works and it worked very nice for me! Obviously you need to take care of the surface by cleaning it. Follow the simple instructions exactly as they say, and you won’t regret this product! Applied activator after having cleaned surface and the lil connector that need to be stick to rear windshield, let it dry a while (5min), apply conductive glue to part and keep it for a 1min. It worked even though in a vertical position and gravity didn’t bother glue and was perfectly stuck! After 24h it should be fine to use, I personally waited more before using the rear windshield heater. Very nice and good product! Will add some photo, and trust me some idiot before soldered that connector and that’s why it came off and I had to clean the part with a solder to clean it properly from tin soldering residue. Anyway it was easy to use as well and functional, it’s already been 2 weeks and still fine. Will post photos.

### ⭐⭐⭐⭐⭐ Works great and easy to do
*by M***O on December 31, 2025*

Needed to reconnect my rear window defroster ('14 Suburban). I had the other one fixed by the dealer when I bought the car and they made it sound like such a big deal and it took them weeks to get the conductive epoxy they said they needed. This came quickly and was very easy to do. It's been about two months now and my rear defroster is still working great! I love that they package the wipe in such a way that you don't have to hold the chemical prep wipe in your hands. Totally worth it!

### ⭐ One of 5 kits worked. Junk.
*by S***I on November 30, 2025*

Only 1 out of 5 kits worked. I initially bought 2 kits for my 2 tabs. One bonded but the other would not and I followed instructions exactly. I ended up buying 3 more kits until I finally got the second one bonded only to find out as confirmed with my multi meter that the first one was not conducting electricity and I had checked for continuity before I glued it on and it was in a good spot. I have continuity all around the tab but it is as if the glue is not conducting. So now I have a glued tab and no defroster. This stuff is junk.

## Frequently Bought Together

- Permatex 21351 Electrically Conductive Rear Window Defogger Tab Adhesive
- 2 Pcs Rear Window Defroster Replacement Tab,Compatible with Ford, Chrysler, Chevrolet
- Permatex 09117 Complete Rear Window Defogger Repair Kit, Single Unit (Packaging may vary)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-05*