---
product_id: 2406497
title: "81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz."
brand: "permatex"
price: "€ 10.59"
currency: EUR
in_stock: true
reviews_count: 13
category: "Permatex"
url: https://www.desertcart.pt/products/2406497-81730-flowable-silicone-windshield-and-glass-sealer-1-5-oz
store_origin: PT
region: Portugal
---

# Waterproof seal Temp resistant -80°F to 450°F Flows into tight spots 81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz.

**Brand:** permatex
**Price:** € 10.59
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal with invisible strength!

## Quick Answers

- **What is this?** 81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz. by permatex
- **How much does it cost?** € 10.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/2406497-81730-flowable-silicone-windshield-and-glass-sealer-1-5-oz)

## 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

- • **Precision Application:** Slim nozzle design for mess-free, targeted sealing in hard-to-reach areas.
- • **Extreme Weather Warrior:** Withstands harsh temperatures, shocks, and vibrations without cracking or peeling.
- • **Invisible Leak Defender:** Creates a crystal-clear, durable seal that stays discreet and professional.
- • **Versatile Sealant Power:** Perfect for glass, vinyl, windshields, and even electrical connections.
- • **Trusted Pro-Grade Formula:** Backed by Permatex’s legacy, ensuring reliable, long-lasting performance.

## Overview

Permatex 81730 Flowable Silicone Windshield and Glass Sealer is a professional-grade, waterproof silicone sealant designed to flow into tight gaps and hard-to-reach areas. It forms a durable, clear seal resistant to extreme temperatures (-80°F to 450°F), vibration, shock, and most chemicals, making it ideal for automotive glass, vinyl, and electrical sealing applications.

## Description

Permatex Flowable Silicone Windshield and Glass Sealer flows into hidden and hard-to-reach areas while its wicking action silicone 'seeks the leak.' It forms a tough, waterproof, durable, clear seal that is resistant to weather, extreme temperatures, vibration, shock and most shop chemicals. Fills surface voids and irregularities, with a temperature range of -80 degrees Fahrenheit to 450 degrees Fahrenheit. This sealer comes from a trusted line of Permatex sealants for virtually any automotive sealing application, from windshields to vinyl tops to electrical connections. These well-known general-purpose and job specific sealants are cornerstones in the Permatex line.

Review: Handy little tube for window leaks - Easy fix for my shop’s drafty front door glass. I run a small print store and cold air was sneaking in along the top edge of the window by the counter. Customers sit right there to sign invoices, so that breeze was annoying. I cleaned the gap, ran a small bead of this Permatex, and let it sit overnight. Next morning it was clear and flexible, and the whistle from the wind was gone. I like that the tip is skinny so i can follow the trim line without making a mess. Used the leftover on a small chip around my truck’s windshield and that sealed up fine too. Reallly glad it stays clear.
Review: Tiny tube that actually stops leaks - This little tube works. I run a gym and bought it for a nagging drip at the top corner of the front door glass. Techs wanted a few hundred to “reseal everything.” I cleaned the channel, squeezed this into the tiny gap, let it flow for a minute, then parked the door open so it could cure. Next storm, zero water on the rubber floor. That alone made me glad. The nozzle is thin so I can run a clean bead without making a mess. It dries clear so members dont notice anything. Ill keep a tube in the office drawer for the next mystery drip.

## Features

- Forms A Tough, Waterproof, Durable, Clear Seal
- Resistant To Weather, Extreme Temperatures, Vibration, Shock And Most Shop Chemicals
- Flows Into Hidden And Hard-To-Reach Areas To Seal Leaks
- Fills Surface Voids And Irregularities

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BKEBO0 |
| Best Sellers Rank | #1,441 in Automotive ( See Top 100 in Automotive ) #6 in Body Repair & Restoration Adhesives |
| Brand | Permatex |
| Brand Name | Permatex |
| Color | Multicolor |
| Compatible Material | Glass, Vinyl |
| Customer Reviews | 4.4 out of 5 stars 6,247 Reviews |
| Global Trade Identification Number | 00686226817303 |
| Included Components | Other Vehicle Parts( AUTO_PART ), Performance Parts - Underhood |
| Item Dimensions | 8 x 4 x 1 inches |
| Item Form | Liquid |
| Item Type Name | Permatex 81730 1.5 Oz Flowable Silicone Windshield & Glass Sealer |
| Item Weight | 1.5 ounces |
| Item dimensions L x W x H | 8 x 4 x 1 inches |
| Manufacturer | PERMTX-LOCKT |
| Material | Silicone |
| Material Type | Silicone |
| Model | 81730 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 81730 |
| Style | Medium Strength |
| Style Name | Medium Strength |
| Surface Recommendation | Glass |
| UPC | 079340817302 686226817303 |
| Unit Count | 1.49 Fluid Ounces |
| Warranty Description | Warranty |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Permatex
- **Item Weight:** 1.5 ounces
- **Item dimensions L x W x H:** 8 x 4 x 1 inches
- **Material:** Silicone
- **Style:** Medium Strength

## Images

![81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz. - Image 1](https://m.media-amazon.com/images/I/81PiaJkLW6L.jpg)

## Available Options

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

## Questions & Answers

**Q: does it work on cell phones ?**
A: I used the permatex 81730 flowable silicone on a cracked screen on an ipad. The corner of the ipad had hit a hard surface and fractured the corner without interfering much with the rest of the screen. I thought I would try the flowable silicone and see how well it worked. I was mainly hoping to keep small pieces from slowly falling out and destabilizing the rest of the glass in the corner. The flowable silicone works as promised. When applied it flows out over the affected area much better than regular silicone. However, it doesn't permeate the crack and basically sits on top of the glass itself. In my experience it did stabilize the corner but left a raised place above the glass that obviously felt like silicone and eventually began peeling off. I eventually had to peel it off the surface of the glass and I haven't as yet replaced it. That's all the info I can share about it... but that was my experience.

**Q: can this be used to adhere the black strip to the front windshield?**
A: 100%. It gets messy on your hands but it will do its job. I did on my windshield which had a gap and the air was coming in while driving... After sealing it.... It is perfect.

**Q: Would this work on a car headlight housing to keep away moisture?**
A: Yes it would as the silicone in it would prevent any water from getting in , also depends how big your Crack is .

**Q: Will this work for a glass door that has a small crack (about 2 inches)?**
A: YES---but it will run down if not masked off.
Not perfectly clear.
Any run down or thick area can be trimmed/shaved off with razor.
The crack needs some open space for the fluid to penetrate.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Handy little tube for window leaks
*by J***S on July 22, 2026*

Easy fix for my shop’s drafty front door glass. I run a small print store and cold air was sneaking in along the top edge of the window by the counter. Customers sit right there to sign invoices, so that breeze was annoying. I cleaned the gap, ran a small bead of this Permatex, and let it sit overnight. Next morning it was clear and flexible, and the whistle from the wind was gone. I like that the tip is skinny so i can follow the trim line without making a mess. Used the leftover on a small chip around my truck’s windshield and that sealed up fine too. Reallly glad it stays clear.

### ⭐⭐⭐⭐⭐ Tiny tube that actually stops leaks
*by C***. on July 5, 2026*

This little tube works. I run a gym and bought it for a nagging drip at the top corner of the front door glass. Techs wanted a few hundred to “reseal everything.” I cleaned the channel, squeezed this into the tiny gap, let it flow for a minute, then parked the door open so it could cure. Next storm, zero water on the rubber floor. That alone made me glad. The nozzle is thin so I can run a clean bead without making a mess. It dries clear so members dont notice anything. Ill keep a tube in the office drawer for the next mystery drip.

### ⭐⭐⭐⭐⭐ Handy silicone sealer for quick fixes
*by M***R on March 19, 2026*

Being someone who often tackles small car repairs, i found this Permatex silicone sealant to be quite helpful. it works well on cracked or leaking windshield edges when i'm on the go. the flowable formula makes application easy and smooth. i appreciate having a reliable, durable option in my toolbox for those unexpected windshield situations. it’s a solid choice for anyone who needs a quick, dependable fix while traveling or in the garage.

## Frequently Bought Together

- Permatex 81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz.
- Permatex 81158 Black Silicone Adhesive Sealant, 3 oz. Tube, Pack of 1
- Permatex 80050 Clear RTV Silicone Adhesive Sealant, 3 oz

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**Shop now:** [https://www.desertcart.pt/products/2406497-81730-flowable-silicone-windshield-and-glass-sealer-1-5-oz](https://www.desertcart.pt/products/2406497-81730-flowable-silicone-windshield-and-glass-sealer-1-5-oz)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-04*