Our goal was to stop the cracks from spreading and both kits worked in this regard, but we thought the Permatex kit maybe has a slight edge over the Rain-X kit

Did a pretty good job sealing crack

Did not work as advertised, my crack looks just like before I applied the product

Has it limitations, did a classic rock/bullseye crack on a 05 subaru outback and then a much larger, linear hairline crack on a 04 mazda MPV.

This will work as long as you don’t have a deep crack in your windshield.

The crack is invisible now, unless you REALLY try to find it, and the chip is completely gone

I've never used anything like this before and the instructions were clear and easy to follow and the crack is sealed and invisible unless the sun shines just right.

Works well and as advertised, but 1 month later after repair, the cracks became more visible again

For anything with an actual crack, make sure you clean the crack as well as possible (scrape it out with a razor blade and a needle, then clean with rubbing alcohol)

If it's a small enough crack, it gets the job done

In my case, I missed a tiny star on the other side of the windshield and a huge crack later the same week.

Great for small repairs, it makes less noticeable the cracks

Still worth it though, the crack now just looks like a dirt speck on the windshield.

The cracks all around were completely clear, but the point of impact had a matte finish unlike the glossiness of the windshield

The cracks are completely invisible now and the remnant of the chip is so small, you would not notice it if you did not know about it.

The result isn't perfect, but it's better then live a crack on the windshield

I think a fresh crack would repair better than an older one, since dirt, wax from the car wash, ect

You can barely notice the cracks, and no water is freezing in there this winter

This product *improved* the star-crack in my windshield due to a rock hitting it.

First of all, I did this repair (bulls-eye that became a shallow, vertical, crack across my windshield) at night because it slipped my mind during the

I used it on "bullseye" chips as well as long cracks and it adhered beautifully every time

Rain-X repaired watch on, and as far as I can tell, it sealed the crack well and is still completely waterproof

If your crack is smooth it may work much better.3

Product works well, however the crack did not completely dissapear.

Had a very shallow stress crack, It diminished the

Not sure how it works so well for others but 3 days later it's not dry and the crack looks like before I used it but with a wet stuff around it

My main concern was the crack getting bigger and spreading to the edge when a crack can be dangerous

Cleared the crack in my window right up!

used it on two different repairs (one had been there for a while) and I was amazed at how invisible the crack became

It also repaired the cracks well enough to pass the yearly state inspection

Did not work as advertised, my crack looks just like before I applied the product

Another about a year old (medium long crack but shallow) and the third (largest, deep and oval shaped) happened within a week and was directly in my line of sight, thus prompting my attempt at a repair

realized the resin doesnt go into cracks very well

Just what I needed to keep an annoying crack at bay

but as soon as I install with 4 legs as directed chip got worse as shown... severe cracks

I had one crack near the edge of a windshield and it just couldn't work on that one

They provide you with 10 curing strips so that is like a dollar a crack

Like most buyers, I had a crack in my windshield, which I managed to identify as a "bullseye" using the manual

It looked like a chip half inch in diameter, but the only real damage was a very tiny crack and the bubble was right at the drivers eye-level

I had a nice crack, and this miracle product virtually erased the crack

The kit does an excellent job of repairing pits and cracks in the windshield, actually too good

I had a nice crack, and this miracle product virtually erased the crack

The good news, it fills in the star cracks and bull's eye cracks very well

seems to fill in the crack pretty well

I sealed up the crack and it worked perfect

it was messy and crack is still visible.

Sealed the crack well on the outside

It did make cracks a lot less noticeable, easy to use

So i'm giving it 4 stars because i think it would've worked if my crack was fresh and small...

I did 1 large shattered star and 4 other small cracks and chips

This repair kit is easy to use and the results are just as good as when you went to a garage for a windshield repair

Disappointing as I have 3 windshields that need repair.

Worked just as well as when I paid a company to come to my house and do the repair for $120

Doesn't work as it says

so it didn't work well for me as I expected