1000+ Verified Reviews

Fix Glass Chips & Cracks in Just Minutes

Stop a $20 Fix From Becoming a $1,500 Bill

Seals chips, cracks & bullseyes in one application
Stops cracks before they spread
UV resin technology from auto glass shops
Repair now, skip the hidden recalibration fee later

+8K Happy Customers

In stock and ready to ship

Get 70% Discount

PROFESSIONAL-GRADE RESIN

20-MINUTE REPAIR

CRYSTAL-CLEAR FINISH

NO SKILLS NEEDED

Lasting Glass Crack Repair

30-Day Money-Back Guarantee

Lasting Glass Crack Repair

30-Day Money-Back Guarantee

Lasting Glass Crack Repair

30-Day Money-Back Guarantee

Professional Glass Repair That Fits Into Your Glovebox

The Same UV-Cure Resin Science Auto Glass Shops Rely On

Professional UV-Cured Resin

No Mixing or Tools Required

Cures in Sunlight or UV Light

Stops Cracks From Spreading

Crystal-Clear, Invisible Finish

Fixes Common Crack Types

Works on All Kinds of Glass

Long 3-Year Shelf Life

Professional UV-Cured Resin

No Mixing or Tools Required

Cures in Sunlight or UV Light

Stops Cracks From Spreading

Crystal-Clear, Invisible Finish

Fixes Common Crack Types

Works on All Kinds of Glass

Long 3-Year Shelf Life

Most Chips Don't Need a Shop – They Need Glasyx

Instantly Fix Glass Cracks and Protect From Future Damage

Stops the Damage Before It Spreads

A chip left alone keeps growing. Cold nights, potholes, every bump adds up until the crack hits the edge of the glass.

Glasyx uses Deep-Fill™ resin technology to permanently seal it while it’s still small. So there’s nothing left to spread, and nothing you’ll need to redo later.

Saves You a $1500+ Replacement

Cracks that reach the edge mean a new windshield. A standard replacement runs around $450. And on most 2018+ cars, that new windshield means recalibrating the safety camera behind it for $250-700 extra.

Fix the glass while it’s still fixable with Glasyx, and none of that applies.

GET 70% Discount

Fix It the Moment You Notice It

You don’t have to book anything, drop the car off, or sit half a day in a waiting room. Just fix it wherever the car already is.

For Every Glass Surface

The same kit repairs side windows, rear glass, and even mirrors.
Done in 20-30 Minutes

Even on a slower cure day, you’re back on the road the same afternoon.
Cures Crystal-Clear

No haze, yellow tint, or mark that gives away where the damage was.

Easiest Way to Fix Cracks Before They Turn Into a Bigger Problem

Professional-Grade Resin

Glasyx uses UV-curing acrylic resin, the same type used in professional windshield repair rigs. It flows into the crack, then hardens into solid, clear plastic once cured, becoming a permanent bond.

Fast-Acting Formula

The resin’s low viscosity lets it wick into hairline fractures within seconds of contact, reaching gaps a thicker filler couldn’t get into. It cures solid in as little as 10 minutes in direct sunlight, up to 30 in weaker light.

Zero-Gap Bond

A crack spreads because there’s an open gap for stress to travel through. Once the resin cures solid inside that gap, there’s no empty space left for a temperature change or a bump to push against.

Formulated for Every Surface

The resin doesn’t react with glass, laminate, or the reflective coating on mirrors, so the same formula works across windshields, side windows, and household glass without a different product for each.

Fix a Crack in 3 Simple Steps

Do it all yourself in your own driveway.

Apply

Drop resin onto the crack, cover with the curing film, and press out any air bubbles.

Cure

Leave in direct sunlight for 10-30 minutes, or use a UV light until solid.

Finish

Peel off the film and scrape away the excess resin.

Lasting Glass Crack Repair

30-Day Money-Back Guarantee

Lasting Glass Crack Repair

30-Day Money-Back Guarantee

Lasting Glass Crack Repair

30-Day Money-Back Guarantee

Caught the Cracks Before They Became a Bigger Job

Real situations where fixing the crack early with Glasyx meant skipping the shop entirely.

Joshua H.

Got a rock chip on the highway on a Friday. I almost just let it ride until my next oil change, but it was cold that weekend and I didn’t want to risk it turning into a crack overnight. Dropped the resin in Saturday morning, left it in the sun for twe

Ron D.

I noticed a hairline crack after the first real cold snap of the year. Just saw it one morning, starting from the bottom corner. I’d read that cracks like that spread fast once the temperature starts swinging, so I didn’t wait around. Sealed it that same day with Glasyx, and now you can’t even tell there was a crack.

Gavin M.

Bought this months ago and just left it in the glovebox. Then a chip showed up out of nowhere on a road trip, and I remembered I had it. Fixed it in a gas station parking lot while everyone else went in for snacks. Didn’t need to find a shop or change plans, and the glass looks great!

Same Fix, Without the Appointment or the Bill

Glasyx vs. Repair Shop

Comparing Glasyx To Getting a Shop Repair

Shop Repair

Fixes the crack before it spreads

Done in 20-30 minutes

Skips the ADAS recalibration fee

You can do it at home

Costs less than $50

Full kit covers multiple repairs

No risk of a shop upselling a full replacement

Thousands of Happy Glasyx Users

Check out these reviews from happy Glasyx customers around the world!

4.8

1,887 reviews

735

1,134

97% of reviewers would recommend this product to a friend

Results

Quality

Satisfaction

Marcus T.

Verified customer

2 days ago

I recommend this product

2 days ago

Can’t even tell where the crack was

I was tailing a truck on the highway and heard the ping, saw the chip in my mirror. Did the repair that same evening in my driveway, cured it under my porch light with a uv flashlight since it was already dark out. Can barely see where it was now

Was this review helpful?

Conrad S.

Verified customer

3 days ago

I recommend this product

3 days ago

Fixed a bigger crack all fine

Had a small crack for like a week, and it definitely got bigger before I finally did anything about it. Glasyx still worked though, filled in fine and stopped spreading. Wish I’d done it day one instead of waiting.

Was this review helpful?

Richard P.

Verified customer

4 days ago

I recommend this product

4 days ago

Used it on my side mirror without issue

I was a bit skeptical that this would work on anything besides a windshield but the page didn’t lie. Fixed the crack in my side mirror in just 15 minutes.

Was this review helpful?

Colin B.

Verified customer

5 days ago

I recommend this product

5 days ago

Saved me an actual appointment!

I had a chip that was right in my line of sight and I kept putting off calling a shop because I just know that they would hike up the bill. So fixed it myself on a sunday morning instead with this and it looks great! Took maybe 25 min total including cure time and I didn’t have to spend $200+ on any repairs or call anyone or anything!

Was this review helpful?

Alicia N.

Verified customer

6 days ago

I recommend this product

6 days ago

Works great on the rear window too

My back windshield cracked, I don’t even know when or how. Didn’t think a kit like this would work on the back glass but it did. Cured clear, no cloudy spot or anything.

Was this review helpful?

Trevor H.

Verified customer

6 days ago

I recommend this product

6 days ago

Stopped a crack from spreading in the cold

I noticed a small crack after a cold night and didn’t want to risk it getting worse before I could deal with it properly. Did the repair the next morning, cured fine in the sun even though it wasn’t that warm out yet!

Was this review helpful?

Jesse B.

Verified customer

7 days ago

I recommend this product

7 days ago

Filled a pretty deep bullseye crack

This one was a bigger bullseye than i expected, almost didn’t think a kit would handle it. Took the full 30 min to cure but it filled in solid. There were no bubbles once i scraped the extra off and you can barely notice anything on the glass

Was this review helpful?

Owen D.

Verified customer

9 days ago

I recommend this product

9 days ago

Didn't leave a cloudy mark

I was worried this would leave some kind of visible patch like the shop repairs I’ve seen before. I basically worried for nothing because it cured totally clear. You’d have to know exactly where to look to even find it now.

Was this review helpful?

More Happy Customers

See what our customers are saying!

Should've done this the day it happened

Had a chip on my windshield for almost a month because I kept telling myself I’d deal with it eventually. It never seemed to get worse so I let it slide. Finally ordered Glasyx, did the repair on a Sunday afternoon, and the whole thing took maybe 20 minutes including cleanup. Kind of annoyed at myself for waiting so long when it was this easy.

Davis L.

Verified customer

Spared me from getting a replacement

Called a shop to get a quote and they started talking about replacement and recalibration before I even asked about just repairing it. Decided to try Glasyx first since it was a fraction of the cost. Filled in clean, cured clear, and it’s held up fine since!

Edward V.

Verified customer

Actually fixes cracks!

I figured a DIY kit would just be a temporary patch at best. Used it on a small crack near the edge of my vision and it filled in solid, no bubbles, no cloudy spot. It’s been a couple months and nothing’s changed. And I just know that I would’ve paid a lot more for the same result at a shop.

Clay L.

Verified customer

So easy even my mom managed to use it

She mentioned a chip on her drive to work and I remembered seeing this online, so I picked one up for her instead of letting her deal with calling a shop. She did the repair herself in her driveway one weekend and said it was easier than she expected haha

Shawn A.

Verified customer

Much better than going to the auto shop

Had a bad experience last time I brought my car in for something unrelated and they tried to tack on extra “recommended” services. When I got a chip in my windshield I didn’t want to go through that again, so I fixed it myself with Glasyx instead. Took less than half an hour and nobody tried to sell me anything I didn’t need.

Matt D.

Verified customer

Works like a charm

Went on without any issues and cured clear in the sun. No visible cracks or chips anymore

Willie T.

Verified customer

Fixed it after dark with a UV flashlight

Noticed the crack in the evening and didn’t want to leave it overnight in case it got worse. Used a UV flashlight instead of sunlight since it was already dark out, and it cured just as solid as the repairs I’ve done during the day!

Stanley A.

Verified customer

Star crack barely visible now

Got hit by a rock from a truck ahead of me and ended up with a star-shaped crack radiating out from the impact point. Wasn’t sure the resin would fill in evenly across all the little cracks, but it did. No visible lines once it cured, and it’s held up fine since.

Frank J.

Verified customer

Rated 4.8 – Showing our 4 & 5 star reviews.

“Glasyx Was Rated As The Best Glass Crack Repair Kit Of 2026.”

Meet the Expert

Auto Glass Repair Technician

The resin in the Glasyx kit isn’t a watered-down version of what we use professionally – it’s the same UV-cure chemistry. What impressed me is that it actually cures hard enough to stop a crack from spreading, not just fill it in cosmetically. If the crack is small enough to qualify for repair, this will do the job. I’d keep one in my own car.

- Arthur Jackson

Frequently Asked Questions

Will this actually stop the crack from spreading, or just hide it?

It seals the crack, not just cosmetically covers it. The resin cures into a hard, permanently bonded fill inside the crack itself, which is what removes the gap a crack needs to keep spreading under pressure or temperature change.

What size or type of cracks does this work on?

Bullseye, star, spider/crescent, linear, and combination cracks up to about 20cm (8 inches). It’s built for damage that hasn’t reached the edge of the glass and doesn’t go through both layers of the windshield.

Is the repair actually permanent, or will I need to redo it later?

It’s a permanent fill. Once cured, the resin doesn’t soften, shrink, or need reapplication. “Permanent” means the crack stays sealed and stops spreading; it doesn’t restore the glass to the same strength as glass that was never damaged in the first place.

Is it safe to drive on a repaired windshield?

Yes, once the resin has fully cured. A properly cured repair restores structural integrity to the damaged area. Avoid driving on it until curing is complete.

What if my crack is too big or doesn't qualify for repair?

If a crack has reached the edge of the glass or goes through both layers, no kit – professional or DIY – can repair it. That damage requires full replacement. Check the crack against the size limit before applying.

Can I use this in cold weather, or does it need to be warm out?

The resin itself isn’t temperature-sensitive to apply, but curing depends on UV exposure, not heat. Direct sunlight works even on a cold, clear day. Without strong sun, a UV lamp is the more reliable option.

What if it rains, or the crack is wet, right before I want to apply it?

The area needs to be clean and dry before application because moisture in the crack can prevent the resin from bonding properly. Wipe the area dry first if it’s been exposed to rain or condensation.

Does this void my insurance claim or affect a future inspection?

This isn’t insurance or legal advice, and policies vary. Many insurers cover professional chip repairs at low or no cost, so it’s worth checking with your provider before choosing DIY if cost isn’t the deciding factor. For inspections, a properly sealed, structurally sound repair typically passes standard visual checks, but requirements vary by region.

Will there be a visible mark after it cures?

The resin cures optically clear with no residue. Very fine surface marks from the original chip may still be faintly visible up close, but the crack itself is filled and sealed.

Can I use this on something other than car glass?

Yes. The same resin works on any glass surface, including mirrors, tabletops, and household glass. For phone screens specifically, check that the crack is on the glass layer and not affecting the display underneath.

How long does the kit last if I don't use it right away?

3-year shelf life unopened, so it’s fine to keep in the glovebox until it’s actually needed.

What's included, and is that enough for more than one repair?

0,7 fl oz of resin, 5 curing films, and one application blade. Resin only cures when exposed to UV light, so the bottle stays usable between repairs – just keep it capped and out of direct sunlight when not in use. 0,7 fl oz covers multiple small chips, not just one.

How is this different from taking it to a shop?

Same core resin technology, applied by you instead of a technician, with no appointment and a fraction of the shop’s $80-160 charge. The tradeoff is your own time and care in application versus paying for someone else to do it.

What is ADAS recalibration, and why does it matter here?

Most 2018+ vehicles have a forward-facing camera mounted near the windshield for lane-keep assist and automatic braking. Any time the windshield is replaced, that camera legally has to be recalibrated at a separate cost of $250-700 (up to $1,000 at a dealer) that’s frequently left off the initial replacement quote. Repairing instead of replacing means this cost never applies.