

🖤 Seal it like a pro — sleek, strong, and ready to drive away faster!
Dow Automotive U-418 Beta Seal is a black, primeless urethane adhesive designed for automotive glass bonding. It cures fully within 24 hours using ambient moisture, performs reliably at temperatures as low as 40˚F, and offers excellent sag resistance and minimal odor. Ideal for direct-glazed automotive applications, it delivers professional-grade strength and workability, making it a top choice for vehicle repairs and installations.
| ASIN | B0182RGDP8 |
| Best Sellers Rank | #52,781 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #108 in Silicone Adhesives |
| Brand Name | Dow Automotive |
| Color | Black |
| Compatible Material | Glass |
| Container Type | Cartridge |
| Customer Reviews | 4.5 4.5 out of 5 stars (585) |
| Full Cure Time | 24 Hours |
| Item Form | Gel |
| Item Package Quantity | 1 |
| Item Weight | 8 ounces |
| Manufacturer | Dow Automotive |
| Material Type | Urethane, Adhesive |
| Model | U-418 |
| Specific Uses For Product | Automotive |
| UPC | 364875844245 |
| Unit Count | 10.5 Fluid Ounces |
| Viscosity | Medium to high |
| Volume | 10.5 Fluid Ounces |
| Water Resistance Level | Not Water Resistant |
D**D
It works as intended.
Very good product. I submerged the tube in very very very hot water for an hour or so. To test I used the cheap blue caulking gun - the one that often gives up when used with regular caulk from Home Depot (of course I have a commercial strength one too just in case). It pushed the adhesive with no effort. Also, it is worthy to mention that this product is very tacky & I was pissed off on myself not to listen to other reviewers to wear gloves and be careful - TRUST ME THOSE HORROR STORIES ARE REAL Submerge adhesive in very hot water for an hour or so, protect the area, wear gloves, punch decent size hole, install the applicator if needed and YOU are going to be satisfied.
D**.
sticks well remember to use gloves.
performed as i expected it dries / sets up to cure in warm weather. I used it as an under hood adhesive because the reinforcement panel was loose and it was most similar to the factory glue as a vibration dampener bonded real well. a 50 year old vehicle is expected to have issues.
K**F
Mustang Convertible top repair
Used this stuff to repair my Mustang convertible top. The back window was beginning to separate out of the vinyl top in two places. I put painter's tape on the glass to protect it/for easy cleanup and used a caulking gun to fill in the gaps. I waited 48 hours for it to cure and it's still going strong five months later. Bought me time to save up to get the top replaced. Wonderful stuff, would absolutely use again.
B**G
Stuff is Sticky
Worked great, and adhered to the window as expected. DO NOT GET THIS ON YOUR HANDS, IT IS VERY HARD TO GET OFF. I found WD-40 and Goof Off work well, but small traces are left. It has finally worn off. There is a lot in the tube. The spout to push the stuff out is oversized, so it does not fit into a standard caulking gun, you will need one with an oversized end for this, or cut it out with tin snips if you have a regular one.
A**.
great product!
the product is great and worked like a charm (much better than the walmart bought products) but they didn’t send an applicator tip for the tube. and it’s not the normal size like other caulk tubes.
R**Y
Gtg!
Good quality sealant
S**S
So Far So Good
I got this to re-attach the sash clips on my daughter's car a year ago (January 2025 timeframe). So far, so good.
I**S
NO TIP INCLUDED
Didn’t come with applicator tip, thought maybe I was just unlucky and ordered a 2nd one that also didn’t come with a tip. Returning both and finding something else. Should have read more reviews first to see that this is apparently a common issue.
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