---
product_id: 1783848
title: "Permatex 21351 Electrically Conductive Rear Window Defogger Tab Adhesive"
brand: "permatex"
price: "R$256"
currency: BRL
in_stock: true
reviews_count: 13
category: "Permatex"
url: https://www.desertcart.com.br/products/1783848-permatex-21351-electrically-conductive-rear-window-defogger-tab-adhesive
store_origin: BR
region: Brazil
---

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

**Brand:** permatex
**Price:** R$256
**Availability:** ✅ In Stock

## Summary

> ⚡ Fix your rear defogger like a pro—stay clear, stay connected!

## Quick Answers

- **What is this?** Permatex 21351 Electrically Conductive Rear Window Defogger Tab Adhesive by permatex
- **How much does it cost?** R$256 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-permatex-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

- • **DIY Made Effortless:** Simple step-by-step instructions ensure a flawless repair, saving time and costly dealer visits.
- • **Instant Grid Bonding:** Bonds defogger tab to rear window grid in minutes for seamless conductivity.
- • **All-in-One Repair Kit:** Includes everything needed for a fast, professional-grade fix—no extra tools required.
- • **Universal Fit for Cars:** Compatible with virtually all rear window defogger tabs—drive worry-free.
- • **Weatherproof Performance:** Engineered to withstand extreme temperatures and weather conditions without fail.

## Overview

Permatex 21351 Electrically Conductive Rear Window Defogger Tab Adhesive is a universal, weather-resistant repair kit designed to quickly restore electrical connectivity to damaged rear window defogger tabs. This easy-to-use kit includes all necessary components and instructions, enabling a durable, low-cost fix that outperforms dealer repairs and keeps your rear window crystal clear in any weather.

## 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 (4,455) |
| 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

![Permatex 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!

### ⭐ Worked once and now does not
*by J***N on October 6, 2024*

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.

## 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: 2026-03-04*