I used this kit recently to repair a crack in my windshield about 1/2 inch long. The instructions are pretty simple to follow.

One trick they tell you in the instructions is to heat the windshield from the inside with a hair dryer in order to get the resin to flow into the crack better. That helped a lot. Once you can see the crack is totally filled in, you remove the tool, put one drop on the hole, place a clear plastic piece over it and put your car in the sun for 15 minutes (or 1 hour if it’s overcast) and the UV light will cure the resin. Finally remove the plastic and scrape away the excess from your windshield using the enclosed razor blade.

My crack was tiny and I almost can’t even see it any longer. This kit really does the job and can be used multiple times until you run out of the resin solution.

Amazing product! I don’t think I’m ever going to Safelite Autoglass again for chip repair! The product does need about 10minutes in FULL SUN to cure (i.e., harden) the product and form the permanent bond to the glass. I fixed 2 star chips, and further patched another 3 “pock marks” in the windshield Hints: * Warm the glass by turning on you defogger on heat * use the razor, or tip of a small file to pick out the compacted glass at the center of the impact * Product needs time to diffuse into the crack under pressure * make sure there are no air bubbles when you apply the curing strip * Give a full 10min (or more) before you try to scrape the product off * when scraping, use a “squeegee” motion with the razor at 90-degrees to the windshield. It should take multiple passes to scrape the product down to a finished level (multiple, like several dozen passes scraping) GOOD LUCK!

My windshield had been hit by a rock going around 85mph. It left a small chip that ended up turning into a crack that ran for about half an inch either way from the chip. That meant I had a small crack (approximately 1″ long) and a small chip to boot. I read the reviews on this product and I was scared that I would either screw it up or it wouldn’t be perfect. Honestly, I couldn’t have asked for better results. The crack is invisible now, unless you REALLY try to find it, and the chip is completely gone. I did as the instructions said, applied the product in the shade and moved my car into the sun. It took me about 5 minutes of real work and about half an hour of not paying attention to make my windshield crack disappear.
I’d recommend this product to anyone who has small cracks. It yielded unbelievable results.

This simple kit saved me purchasing a replacement windshield. As usual a stone kicked up from a vehicle in front of me, causing a small star-shaped cavity in my windshield. It did not however result in crack lines extending beyond the center of the impact. After about 1/2 hour of effort (most of it just waiting) my windshield is much improved, good enough that I basically don’t see the “dit” unless I stare right at it. The little impact zone has the appearance of a tiny circular smudge on the outside of the glass, the internal spider of broken material is now visually gone. The process is easy and works well if you follow the clear instructions. I’m saving my insurance for the really big events (no hurry on that one!).

Cracked screen in my Lexus, very expensive to replace so thought I would try this.
It worked!
Some of the crack could still be seen after the repair, but over a week this has actually dissapeared, so looks like it keeps working for a couple of days after use.
Very pleased with the results.

I cracked the back of my iPhone 8, there was a network white cracks like a spider-web on about 75% of the back. I used the “Crack Repair” method in the instructions and was able to fill everything. The cracks are still visible in a ghost-like way but it sealed every shard in and diminished the white crack look significantly. I am happy with the results. I recommend doing a couple of passes (three for me) and curing it in the sun for a while. I also used the rest of bottle on a cracked iPad screen, was able to smooth it over as well and the touch screen still works as intended. I didn’t scrape off the excess with the razor given, I simply removed with my fingers as a safer alternative.

I had never used this, I regret that now, I am 95% happy with my repair, 100% with the product, follow the good instructions, thirty minutes tops and your damage is virtually invisible, I had a rock chip smaller than a dime, by the time I completed my trip it was slightly larger than a quarter star pattern, it is only visible to me because I know where it is, the center could take a bit more resin and I may not find it, the visible area is about the size of a dull pencil head, by the way, no measuring necessary. Five stars is right.

The cracks look much better after the repair. At first I wondered why the apparatus was necessary and it looked complicated. It's not too bad and I realize why it is necessary now. One crack is hardly visible. This is way cheaper than taking it to a windshield glass repair place. I suspect it should hold up fine, but will update my review if not.

I live in Washington State, the roads are really bad, rocks chip windshields left and right, from motorists who don’t have mud flaps. At first, I didn’t think this would work but……….Let me show you with images, and no I am not being paid by anyone to do this. I stand by a product when it works. Took 3 times, make sure that you find the pin hole of the crack. My case was “bullseye” effect.

Good product for small cracks or dents in the windshield.

I successfully repaired a small chip on my windshield with this repair kit. The instructions were easy to follow and the kit includes everything that you need. The end result was really good, as if the chip never happened. I am not sure if I had a big crack whether this product would work as good. I’d recommend it to anyone that is willing to undertake a do-it-yourself small project and can follow simple directions.

The product was very easy to use. I bought it for a unique application just to see if it would work on repairing some cracks in my stain glass on my front door and it really works!

This always fixes the little cracks and dings on my windshield. I've found that you want to keep an eye on them after 9-12 months. Had to refill one of mine that started cracking after a year. It's very easy to use and usually you won't use a full tube in one go.

A fix it glass place said they couldn’t fix my cracked windshield but this product worked better than I thought, so no need to buy a new glass

Works ok. No miracles, only glued the small scratches.

I’ve used this product multiple times always with great success. I just fixed a star ding that was almost 1 inch wide. See attached picture of before and after. You can barely see it after using this to fix it! Buy one or two to have on hand when you need it.

The repair liquid fixed my windshield and I am satisfied.

I didn’t think it would work this great! I’ve had this bullseye for about year thinking the only way to fix it was by replacing the windshield altogether. The only issue I had with this kit was the suction cup thing, it kept lifting while the resin chamber was screwed in.

Very easy to use and works good

Didnt work that well. I've had the phone screen glass damaged - but that resin just got under the protective screen and on the phone display. Guess you can't use it directly on electronics.