J-B Weld 2100 Windshield Saver Repair Kit, 0.025 fl. oz

Couldn’t be happier. Worked like a charm on my dime sized combo chip/crack. First time using it and instructions were clear and easy to follow and did exactly as it said. I didn’t get a before and after but it’s almost concealed entirely. Would 100% use again.

Understand what these products can and can't do and you shouldn't be disappointed! You can still see where the damage was but it didn't expand or worsen in anyway. I don't even notice it any more. This worked as described. I followed the directions precisely and got a nice repair out of it for far less money (and time) than a professional ship repair. There are other products out there reportedly creating bigger problems and messes to clean up. I cancelled an order on such a product and was very glad to find an use this one. This is a single use kit, to be sure. There is extra left over, but without a spare adhesive pad you wouldn't really have a good way to use it. I saved my leftovers anyway...

I had a small star crack on my windshield from a rock and tried this product out. The instructions were straight forward until step 4, adding the resin. This is a design flaw in my opinion. At this point, we've sealed the area off with the pedestal and adhesive. The only access to the windshield crack is through the small pedestal chamber, and the chamber is filled with air at this point. The instructions say, "then add the resin". Since the chamber is filled with air, resin cannot enter the small chamber! I slightly squeezed the resin tube, and the resin pushed against the air in the pedestal chamber, couldn't go into the pedestal, understandably, but had to go somewhere. So it leaked all over the outside of the pedestal. Honestly, I barely squeezed the resin tube. The only way for resin to go in, is for air to go out. So for the people this works for, they must have an air leak somewhere. Since you're in the shade and the pedestal is opaque, you cannot confirm if resin made it into the pedestal or not. So the remaining steps of creating a low then high pressure environment with the syringe do nothing since there's no resin in the chamber when you think it is there! To make things worst, people then follow the final step of sealing the area off at the end with the resin, meaning they permanently "seal the crack in". Their crack will never be fixed until they replace the whole windshield. Read all the reviews where people say, "I followed all the steps and nothing happened". Yep! Resin never made it into the chamber because of this design and they permanently sealed their crack in. This is the same concept of when you create a small hole in a can of soup and turn it upside down. Soup doesn't fall out because air cannot go in to fill any space because the soup is blocking it.

My one bathroom scale chipped while traveling cross country so I got this as an experiment to try and fix it. Overall it works fine but I am facing an ironic challenge in using the smoothing piece of plastic: it makes the resin look smooth and like the original glass but also peels off the resin when I lift it, even when using the pin to keep the resin underneath from lifting. Maybe this is only supposed to be used on windshield glass. It is a circle shaped chip which this kit allegedly can fix. Will keep trying but might just let it cure with the resin done freestyle. At least it will look better than it did after the move and won't cut my hand.

I bought this and followed instructions. The problem is adding the liquid into the window mount. If you stick the tube of liquid into it, it creates a vacuum and nothing comes out. If you drip it in you end up wasting it and making a mess. It says to keep some for later but the tube is not see thru and you have no way to know if you have left yourself any. Once that's done the syringe pulls vacuum. Ony if it sucks any liquid into the syringe, as mine did, the liquid is exposed to the sun. Then activates rendering the syringe from being effective for the 2nd part. After all of this BS I decided to buy a 2nd kit and try again. I was able to make the process go a little smoother but it still f'd up and did nothing. The kit is not well thought out. If I ever need one again I will def buy a different brand and method.

I got two rock chips in my windshield at the same time so I tried both the JB Weld 2100 and Permatex 09103 at the same time. Even though both repairs appeared to be equally effective (maybe 80-90%), I have to say the JB Weld kit was better overall. The JB Weld disk that attaches to the windshield had two different colors on each side so you would know which side went on the windshield. Also, the epoxy tube had a functional cap while the permatex instructions mention a cap but it didn't actually come with the kit. The seal on the JB Weld kit syringe seemed to be a little better as well. As I mentioned, both kits seemed got the job done, but the JB Weld kit was a little more complete.

Multiple step process, read and follow the instructions and you'll get a perfect repair. I fixed a chip and slight crack, took about an hour from start to finish. TOP TIP - do the repair on a warm sunny day, helps cure the resin faster as the last step is, "Park the car in direct sunlight and let the resin cure 15-20 minutes." Cloudy day takes an hour, and a rainy day won't work AT ALL!!

Easy to use Good value Exactly as advertised

You cant go wrong with JB Weld. Very good quality product by JB Weld. Works like it should.

It's magic. This is my first DIY for glass repair, and the glass is almost as good as new. Took me 2 days as I didn't keep the car under the sun in the last step, so I applied another layer the next day. This product is amazing ❤️ This is a highly recommended product, amazing results 👍👌

It work perfectly

Corrigió el daño de mi cristal , aún que un poco confuso el procedimiento se corrigió el problema

I like the product and it safes money super easy to handle