Frost Fighter Rear Window Defroster/Defogger Grid Repair Kit 2120

I wasted money on some cheaper brands. One of them worked for only two days, and the other didn’t work at all. Although this product is more expensive, it is very effective. I repaired my grid line by following the instructions on a −10°C day, and it has been working perfectly. Highly recommended.

This product works just fine. Follow the instructions. There is one thing that someone mentioned in a video: "The brush doesn't reach the bottom of the bottle." So if you have a lot of broken spots like I did - you will need a little bit longer brush. You can use a very small artists paint brush and cut it down. I ordered another bottle to finish the job just because I have an old car with lots of breaks. Don't put stickers on the inside of your rear window!

Worked like a charm! I can now see out of my back window again on cold mornings. The bottle had more the enough to fix multiple locations. I still have some leftover for possibly future repairs. Great product!

Spent a fair bit of time looking at the reviews of other products. Despite there not being too much out there for this one, and it being quite a bit more expensive, I just had a better feeling about this one in terms of quality, colour, and amount of repair material. I looked into ordering directly from the company, but shipping was going to cost more than the product itself. Was cheaper to order through Amazon. Very glad I went with it. If you take the time to mask the lines carefully (I evidently used much longer strips of tape than I needed), and follow the directions, you get a virtually invisible repair. I had four a hairline scratch through four of the grid lines in my vehicle. Did the repair during a Chinook in February, where the outside temperature was about 8*C, and used a hairdryer for 10 minutes, to keep the glass warm, as per the instructions. Works perfectly now and I can’t see the repair without looking carefully or feeling for the repair itself. I also have quite a bit leftover for future needs (assuming it stores well and doesn’t dry out). Very pleased!

Used this on an older car with a few inoperable lines. Definitely skip using the template provided. I used blue tape so i can control the area to be fixed. The template provided is really wide and the "paint" will overlap the line. It took me a few tries on some lines before i got results. It won't be a 100% like brand new but it will be working. What i mean by that, is on the treated line, you may see where the break in the line occurred. Both sides of the line are working , but the place of the break it has a small defrost area due to connection not being 100%. I could probably try and add more to improve, but I got a whole like to work so i'm more than content.