---
product_id: 3435285
title: "3M 08609 Window-Weld Super Fast Urethane Windshield Adhesive, High-Strength Fast-Curing One-Part Auto Glass Sealant, 10.5 fl oz (310 mL) Cartridge, Black"
brand: "3m"
price: "€ 77.65"
currency: EUR
in_stock: true
reviews_count: 8
category: "3 M"
url: https://www.desertcart.es/products/3435285-3m-08609-window-weld-super-fast-urethane-windshield-adhesive-high
store_origin: ES
region: Spain
---

# 1-hour fast cure 1000 PSI tensile strength no-mix, one-part urethane 3M 08609 Window-Weld Super Fast Urethane Windshield Adhesive, High-Strength Fast-Curing One-Part Auto Glass Sealant, 10.5 fl oz (310 mL) Cartridge, Black

**Brand:** 3m
**Price:** € 77.65
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it fast, seal it strong — because your ride deserves the best!

## Quick Answers

- **What is this?** 3M 08609 Window-Weld Super Fast Urethane Windshield Adhesive, High-Strength Fast-Curing One-Part Auto Glass Sealant, 10.5 fl oz (310 mL) Cartridge, Black by 3m
- **How much does it cost?** € 77.65 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/3435285-3m-08609-window-weld-super-fast-urethane-windshield-adhesive-high)

## Best For

- 3m enthusiasts

## Why This Product

- Trusted 3m brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unbreakable Bond:** Professional-grade 1000 PSI tensile strength ensures your windshield stays sealed against leaks, vibrations, and extreme weather.
- • **Mess-Free Precision:** Medium viscosity formula prevents drips and sagging for clean, controlled application every time.
- • **Drive Away in 1 Hour:** Minimize downtime with ultra-fast curing adhesive that reaches safe strength in just 60 minutes.
- • **Plug & Play Application:** One-part urethane requires zero mixing—just load your caulking gun and go for consistent, reliable results.
- • **Universal Fit for All Rides:** Perfect for windshields, rear windows, and quarter glass on cars, trucks, and SUVs—versatility that pros trust.

## Overview

3M 08609 Window-Weld is a professional-grade, high-strength urethane adhesive designed for fast, permanent windshield and auto glass bonding. Featuring a super-fast 1-hour cure time and a no-mix, one-part formula, it delivers OEM-level strength and weatherproof sealing with easy, drip-free application. Trusted by auto glass pros for reliable, leak-proof results on cars, trucks, and SUVs.

## Description

Securely Set Windshields in Place: 3M Windo-Weld Super-Fast Urethane delivers a secure and permanent attachment of the replacement windshield. We use the word "weld" in the name to symbolize how strong the bond will be. A popular choice among auto glass installers, 3M Windo-Weld Super-Fast Urethane delivers reliable performance that meets customer satisfaction. When properly applied, our adhesive prevents annoying leaks where rain and water can seep into the vehicle between the windshield and auto body. Your Choice: Manual or Power Caulking Guns: 3M adhesive may be applied with either a manual or powered caulking gun.3M offers manual applicator guns with an 18:1 ratio, including the 3M Professional Caulking Gun - part number 08993. Electric, battery or air-operated caulking guns may also be used. Adhesive offers a 10 to 20 minute work time. Other Applications: Besides replacement auto glass installations, this adhesive may also be suitable for some non-structural body panel applications.

Review: This stuff really works. - Used this on my 2009 Audi A4 Convertible top glass rear window and it is holding extremely well. It has amazing sticking power, dries pretty fast. My only caution is when doing a window on a convertible top, you don't need a huge amount to do a good repair. I cut the bead line too big and I put too much material between the top and the glass window. I also used the CR Lawrence Suck and Clamps to hold down the top to the glass. So the combination of too much material and really tightening the clamps too tight, I made a mess and had a lot of material ooze out onto the glass. Also, I tightened down the clamps so tight that I must have forced some of the material up through the fabric, so that when I removed the clamps I had visible stains on the outside of the convertible top. However, my top is 9 years old, and this repair should get me another two years until I can buy a new one. Listed below are my recommendations. 1. Make sure to buy the primer that goes with this and use it. 2. Raise the top ever so slightly to take the pressure off it, then brace it so it doesn't drop down. I used rags under the back of the top and a cardboard box between the top and the front window. 3. If you have a lot to repair, consider doing it in small steps, it's much easier that way. 4. Use thin disposable gloves, have several extra on hand. If you get any material on the gloves, put on a new pair. 5. Cut a small bead line, and apply a thin coat to the sealing area between the glass and the top material. 6. Use the CR Laurence clamps, but don't tighten them too tight, only enough to get a good touch seal so the bonding material makes good contact. An alternative to the clamps could be one or two automotive inner tubes or pool toys, that you brace inside the car and then inflate to allow them to put pressure on the glass from inside the car. 7. If any material oozes out onto the glass, loosen the clamp a little and allow the material to set up for about an hour. Then you can take the clamp(s) off and very carefully cut the xtra material using a razor blade. Be very careful not to fray the top with the razor blade. At this point the material doesn't need a lot of pressure to cut off, and light pressure on the blade will easily cut it. Re-apply the clamps. 8. Starting within 30 minutes of applying the material, gradually ease the pressure off the clamps until after about 3 hours you can completely remove them. 9. I let the repair set for two days before I drove the car. 10. Take your time, it's not really hard to get a good repair.
Review: Great Product - Works great, haven’t had any issues and that’s cause I have a bass system right next to that window and it’s set good! Defined recommend

## Features

- PROFESSIONAL AUTO GLASS BOND: High-strength urethane adhesive bonds windshields securely to vehicle frames for a permanent, weatherproof seal. Helps prevent leaks and withstands road vibrations and extreme temperatures.
- SUPER FAST 1-HOUR CURE: Advanced moisture-curing formula sets quickly with a 10-15 minute work time and achieves safe drive-away strength in as little as one hour (at 73°F). Ideal for professionals to minimize vehicle downtime.
- EASY, NO-MESS APPLICATION: Medium viscosity, non-sag formula won't drip for controlled application on vertical or overhead surfaces. Use any standard 10.5 oz cartridge caulking gun (manual or powered) for precise adhesive placement.
- ONE-PART URETHANE, NO MIXING: Ready-to-use single-component polyurethane adhesive requires no mixing or special equipment. Simplifies windshield replacement with consistent bonding performance and no guesswork.
- VERSATILE & UNIVERSAL USE: Designed for replacing bonded auto glass, including windshields, rear windows, and quarter glass. Also suitable for some non-structural panel bonding applications. Universal fit for cars, trucks, and SUVs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000FW61EW |
| Best Sellers Rank | #3,375 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #12 in Urethane Adhesives |
| Brand | 3M |
| Brand Name | 3M |
| Color | Black |
| Compatible Material | Glass |
| Container Type | Cartridge |
| Customer Reviews | 4.6 out of 5 stars 4,339 Reviews |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00051135086094 |
| Included Components | Window-Weld |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Type Name | Urethane Super Fast Cartidge |
| Item Weight | 0.9 Pounds |
| Manufacturer | 3M |
| Material | Urethane |
| Material Type | Urethane |
| Model | 08609 |
| Other Special Features of the Product | 1.Professional Auto Glass Bond 2.Easy, No-Mess Application 3.Super fast 1-Hour cure 4.Easy caulking 5.OEM Strength |
| Special Feature | 1.Professional Auto Glass Bond 2.Easy, No-Mess Application 3.Super fast 1-Hour cure 4.Easy caulking 5.OEM Strength Special Feature 1.Professional Auto Glass Bond 2.Easy, No-Mess Application 3.Super fast 1-Hour cure 4.Easy caulking 5.OEM Strength See more |
| Specific Uses For Product | 1.Windshield Replacement 2.Back/Side Glass |
| Tensile Strength | 1000 Pounds Per Square Inch |
| UPC | 051135086094 |
| Unit Count | 10.5 Fluid Ounces |
| Viscosity | Medium |
| Volume | 10.5 Fluid Ounces |
| Warranty Description | New out of box defects |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** 3M
- **Item Form:** Strip
- **Material:** Urethane
- **Specific Uses For Product:** 1.Windshield Replacement 2.Back/Side Glass

## Images

![3M 08609 Window-Weld Super Fast Urethane Windshield Adhesive, High-Strength Fast-Curing One-Part Auto Glass Sealant, 10.5 fl oz (310 mL) Cartridge, Black - Image 1](https://m.media-amazon.com/images/I/71fX-7A7eVL.jpg)
![3M 08609 Window-Weld Super Fast Urethane Windshield Adhesive, High-Strength Fast-Curing One-Part Auto Glass Sealant, 10.5 fl oz (310 mL) Cartridge, Black - Image 2](https://m.media-amazon.com/images/I/61ADUc2CQGL.jpg)
![3M 08609 Window-Weld Super Fast Urethane Windshield Adhesive, High-Strength Fast-Curing One-Part Auto Glass Sealant, 10.5 fl oz (310 mL) Cartridge, Black - Image 3](https://m.media-amazon.com/images/I/61UQc2iDdWL.jpg)
![3M 08609 Window-Weld Super Fast Urethane Windshield Adhesive, High-Strength Fast-Curing One-Part Auto Glass Sealant, 10.5 fl oz (310 mL) Cartridge, Black - Image 4](https://m.media-amazon.com/images/I/710qdDNDibL.jpg)
![3M 08609 Window-Weld Super Fast Urethane Windshield Adhesive, High-Strength Fast-Curing One-Part Auto Glass Sealant, 10.5 fl oz (310 mL) Cartridge, Black - Image 5](https://m.media-amazon.com/images/I/71VxBEG9lUL.jpg)

## Available Options

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

## Questions & Answers

**Q: So do you have to be dead on perfect the moment you set the glass, or can minute adjustments be made once it's down?**
A: It takes 48 hours to cure. You have 5 to 10 min before you can't adjust window anymore.  Side note. Urathan will stain anything it touches even your skin. So be very careful and don't use more than you need to.

**Q: Does it come with a nozzle?**
A: Mine did come with a nozzle

**Q: What durometer does this stuff cure to?**
A: Hi Travis! Thank you for your question. The 3M 08609 Window-Weld Super Fast Urethane has a 55-60 Hardness (Shore A).

**Q: Will 3m 08693 auto glass urethane secure the rear glass to a canvas convertible top? sides and bottom have separated and need to be glued.**
A: Yes. I purchased a small piece of convertible roof fabric on ebay which matched my convertible's black top and I cut it to fit the lower part below therear window with about a one inch overlap onto the window. I followed the adhesive directions and glued the new material right onto the window andthe old convertible fabric. I let it sit for 48 hours. Today, you can hardly notice it was repaired and the adhesive still adheres to the glass.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This stuff really works.
*by P***O on July 15, 2017*

Used this on my 2009 Audi A4 Convertible top glass rear window and it is holding extremely well. It has amazing sticking power, dries pretty fast. My only caution is when doing a window on a convertible top, you don't need a huge amount to do a good repair. I cut the bead line too big and I put too much material between the top and the glass window. I also used the CR Lawrence Suck and Clamps to hold down the top to the glass. So the combination of too much material and really tightening the clamps too tight, I made a mess and had a lot of material ooze out onto the glass. Also, I tightened down the clamps so tight that I must have forced some of the material up through the fabric, so that when I removed the clamps I had visible stains on the outside of the convertible top. However, my top is 9 years old, and this repair should get me another two years until I can buy a new one. Listed below are my recommendations. 1. Make sure to buy the primer that goes with this and use it. 2. Raise the top ever so slightly to take the pressure off it, then brace it so it doesn't drop down. I used rags under the back of the top and a cardboard box between the top and the front window. 3. If you have a lot to repair, consider doing it in small steps, it's much easier that way. 4. Use thin disposable gloves, have several extra on hand. If you get any material on the gloves, put on a new pair. 5. Cut a small bead line, and apply a thin coat to the sealing area between the glass and the top material. 6. Use the CR Laurence clamps, but don't tighten them too tight, only enough to get a good touch seal so the bonding material makes good contact. An alternative to the clamps could be one or two automotive inner tubes or pool toys, that you brace inside the car and then inflate to allow them to put pressure on the glass from inside the car. 7. If any material oozes out onto the glass, loosen the clamp a little and allow the material to set up for about an hour. Then you can take the clamp(s) off and very carefully cut the xtra material using a razor blade. Be very careful not to fray the top with the razor blade. At this point the material doesn't need a lot of pressure to cut off, and light pressure on the blade will easily cut it. Re-apply the clamps. 8. Starting within 30 minutes of applying the material, gradually ease the pressure off the clamps until after about 3 hours you can completely remove them. 9. I let the repair set for two days before I drove the car. 10. Take your time, it's not really hard to get a good repair.

### ⭐⭐⭐⭐⭐ Great Product
*by A***R on December 19, 2025*

Works great, haven’t had any issues and that’s cause I have a bass system right next to that window and it’s set good! Defined recommend

### ⭐⭐⭐⭐⭐ Works Great
*by J***N on August 5, 2025*

The glass in my convertible fell out because of the heat when it was parked on one of the record temperature days we just had. I bought the windo weld and the one step primer to repair it. To get the old adhesive off, I used a combination of a heat gun and acetone. I let the primer dry for about a day. I cut a v shape into the cartridge tip and used a caulking gun that had a 18 to 1 throw ratio. I had my grandson in the back seat pushing the glass out as i applied all of the suction cups. Once it was in place, I let it sit for 48 hours. At 24 hours it is 90% cured and it is fully cured after 2 days. I over applied the adhesive so I had some ooze out. Trimming the excess was pretty intensive so I would suggest being careful with that. This stuff is brutally hard when it cures. My top was old but it was in good shape. Most upholstery shops won't do this and want you to buy a new top. It was time consuming but if you are careful and follow the directions you can save yourself a lot of money. Now I just have to find somebody who needs all of these suction cups.

## Frequently Bought Together

- 3M 08609 Window-Weld Super Fast Urethane Black Cartridge - 10.5 fl oz.
- One Step Primer - Ideal for Windshield Replacement - Promotes Adhesion of Urethan Adhesive/Sealants - UV Resistant - Fast Drying, No Activator - Incl. 2 Daubers and Gloves - Black - 30 mL / 1 fl oz
- ZKTOOL 6PC Suction Cup Clamp Set, Class Clamps Kit for Car Convertible Glass Windshield Top Repair Gluing,With Sponge Pad…

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-26*