---
product_id: 2406497
title: "81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz."
brand: "permatex"
price: "€ 15.93"
currency: EUR
in_stock: true
reviews_count: 13
category: "Permatex"
url: https://www.desertcart.es/products/2406497-81730-flowable-silicone-windshield-and-glass-sealer-1-5-oz
store_origin: ES
region: Spain
---

# Waterproof seal Flows into tight spots Extreme temp resistant 81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz.

**Brand:** permatex
**Price:** € 15.93
**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?** € 15.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/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

- • **Temperature Warrior:** Operates flawlessly from -80°F to 450°F—ready for any climate challenge.
- • **Precision Leak Seeker:** Flowable silicone wicks into hidden cracks and hard-to-reach areas for total leak defense.
- • **Weatherproof Confidence:** Withstands brutal weather, shocks, and vibrations so your windshield stays flawless.
- • **Trusted Pro-Grade Formula:** From automotive pros to outdoor adventurers, a sealant that never quits.
- • **Invisible Armor for Your Glass:** Creates a crystal-clear, tough seal that stays invisible but fiercely protective.

## Overview

Permatex 81730 Flowable Silicone Windshield and Glass Sealer is a professional-grade, clear silicone sealant designed to flow into tight, hidden areas and form a durable, waterproof barrier. Resistant to extreme temperatures (-80°F to 450°F), weather, vibration, and chemicals, it’s ideal for automotive windshield repairs and versatile enough for outdoor gear sealing. Trusted by experts for fast, reliable leak protection.

## 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: Great for seam sealing tarps and tents - I use this flowable silicone for sealing the seams on my silnylon tents (SeekOutside Tipi, NEMO wagon top), it works great, cures within a few hours and keeps the rain out of my tent. I have also used this product to seal cook custom sewing silnylon tarps. The silicone doesn't crack and remains clear, I have had this applied on multiple tarps and tents for years with no issues or need to reapply. I assume it would be good for using with a windshield too, but my primary experience is with waterproofing outdoor gear.
Review: Handy silicone sealer for quick fixes - 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.

## 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 | #1,772 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 | 4.3 out of 5 stars 5,834 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 | Rigid Industries 46503 Fog Light Mount |
| Item Weight | 0.01 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 |
| 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:** 0.01 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)
![81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz. - Image 2](https://m.media-amazon.com/images/I/81DQWNP36QL.jpg)
![81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz. - Image 3](https://m.media-amazon.com/images/I/81QSktV6+eL.jpg)
![81730 Flowable Silicone Windshield and Glass Sealer, 1.5 oz. - Image 4](https://m.media-amazon.com/images/I/71k92rY84aL.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

### ⭐⭐⭐⭐⭐ Great for seam sealing tarps and tents
*by N***N on March 31, 2026*

I use this flowable silicone for sealing the seams on my silnylon tents (SeekOutside Tipi, NEMO wagon top), it works great, cures within a few hours and keeps the rain out of my tent. I have also used this product to seal cook custom sewing silnylon tarps. The silicone doesn't crack and remains clear, I have had this applied on multiple tarps and tents for years with no issues or need to reapply. I assume it would be good for using with a windshield too, but my primary experience is with waterproofing outdoor gear.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐ Good but oversold on capabilities
*by B***D on July 7, 2010*

From the package: "Specially formulated wicking action silicone. Flows into hidden and hard-to-reach leaks around glass..." I did not find that it really wicked at all. To me, it is just a more runny RTV silicone sealant. Because is thinner, it will flow somewhat into nooks better than you can squeeze normal silicone sealant yourself. This, overall, seems to contribute to a better seal, so it might be the best product for the application, but it is not anywhere as great as the description might lead you to believe. Also, because it is runny, it is better used on small gaps and where the application is horizontal. If at an angle or vertical, it will tend to run out and drip. You might be better off with two light applications based on this. Based on its performance to claims, I'd give it a bit under 4 stars. One problem that this product (and most Permatex products) has is that it comes with a cut-off nozzle to apply the sealant. After you are done, there is no way to seal up the tube. Unfortunately, this makes it more of a one-time-use product and not so good if you want/need to do multiple applications because you still have a leak and/or the product leaked/ran out. I sealed the tip up extremely well with electrical tape, and it barely lasted overnight. (I had to cut some more of the tube off). Some other products (GE, I think) have a replaceable, screw cap over a pointed nozzle which would be much better. This probably knocks it down to 3 stars since it is not that cheap and not widely available. Finally, it claims to be odor-free. While it is vastly better than the pungent smell of acetic acid, it is not odor-free, but not really bad at all. Very-low odor would be more accurate, although smell is lesser important to me, I round back up to 4 stars. See my customer image of some landscape lights I was trying to seal from irrigation spray (which keeps corroding/ruining them). You can see that it flows better into crevices, but that it also has a tendency to run out. Hope you find my review useful.

## 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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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-06-02*