What's The Best Car Glass Windscreen Coating | RainX, Stoner, Nextzett, Gyeon, Carpro, Nv Nova! 

It's always a treat to escape to the detailing discovery channel.... 👍👍

Yes! Sandro is back!!!!! I have rain x and just purchased a neat 3 door Volkswagen up and plan on giving her the works when my 1 inch da polisher arrives for the A pillers and tougher spots which is where I get to work with CarPro Ceri Glass. This hobby keeps me seriously sane as I dont have much else to ease my ocd and feel great.

I love rain x. Very little fuss when applying and i think I’ve used one bottle from 10 years of detailing family and friend’s cars (and probably spilled more than I’ve used). I’d say thats pretty much bang on for MY expectations of a glass product.

Nova products are going to be even harder to get if you keep putting out these killer videos. I had to wait about 2-3 months before their waitlist opened up. They’re the new and improved CarPro, now.

Honestly based on results I’ll save $50 and get Rain X every time. But what sells me on sealants is durability and how long they last! I want 5 year glass coatings :(

Not sure what you were looking Sandro, but to my eye RainX is clearly the most hydrophobic (at least at the start), followed very closely by NV, Nextzett and Gyeon. Honestly can't judge Carpro from the small video that was at the bottom so won't say where that one fits in. Stoners was very clearly the least hydrophobic. Maybe things looked different in person, but that's just how I see it in this vid.

Hi Sandro, thanks for the time it has taken to do this testing on glass coatings. I was looking at applying a glass coating on my 2019 Tucson which is outside 24/7, but I found the combination of Turtle Ice Seal N Shine (new formula) with Rain-X Washer additive work great together. I only just added some Rain-X to washer bottle yesterday, whilst Seal N Shine was applied almost 2 months ago and still going strong on All the glass surfaces I applied it to. Even during that week of the heavy rain down the East Coast it worked fantastically. Thanks again for another intuitive video. Cheers, Ozz

Such a thorough, well thought out experiment / comparison test - thanks mate, great job.

Thank you for your time Sandro!

Rain-X has one other great attribute: it will cause no trouble on surfaces with imbedded signal panels (e.g. side view mirrors). These cannot be prepared the same way windows can be, or so I've been told. So, I use Rain-X for mirrors.

Really Loved this comparison. I have used NV glass on 2 vehicles now and can't agree more with your findings. Great work Sandro.

I am so impressed you reviewed Rainx as well as these boutique products. It shows your curiosity and integrity in testing a range of products. I still have a bottle of Rainx that I was going to relegate to coating my shower doors since that has been ideal for reducing the soap scum deposits. But I’m impressed with Nuevo. Here in N. California we have such hard water....we’d have to polish the glass every time we need to apply these glass coatings. I’m not sure I want to repeatedly polish the windows to apply Rainx.

Nv just make some flat out top notch products! Thanks for the hard work/review! 👍🏼

Sandro, I can’t thank you enough for these videos. Your ability to produce educational videos that on the surface (good pun) seem mundane in nature…enables someone to get the ‘why’ on what others end with ‘what’. The demonstrated information in your library not only shows how to do great work, but what is necessary to make reproducible quality work. I’d love to see another wax shootout when it makes sense for you to assemble.

Thanks for doing this review Sandro. Much appreciated.

Rain X roughly 9 euros in Europe. Nextzett i can get for around 9-11 euros for 200ml. Looks like a killer value. I actually have a bottle of rain X around. But when it finishes i will defenitly get the Nextzett. Many thanks Sandro. Your videos are so great. I'm really gratefull for your videos. They really helped me to get products and techniques to detail my own car and to my friends and family ones as well.

Thank you for making this great review video Sandro. Bless you.

Thanks for creating this informative video Sandro! I will need to re-watch it when I am ready to apply Carpro Flyby Forte on my car. Your last video on applying a ceramic coating came a week after I applied Gyeon Q2 View to my parents car. I followed the video by Gyeon Ambassador Yves Heylen and followed the 15 minute wait times between applications but I found the buffing off process very labor intensive. Despite preparing the glass washing, clay baring, cleaning and applying the polish product supplied manually I was not able to achieve the squeaky sound that is a good sign that the glass is prepared properly when applying the protective coating. Anyway my parents report the water is beading off the glass however I am not sure how long it will last. I am awaiting for the Max Shine 3" polisher to arrive through WaxIT. Thanks for listing all the items / products you use coupled with informative content is a real help that is allowing me to develop better habits in my passion for car detailing.

Love your videos so much man. Much love from England

Yes i love your videos, love from the US!!

I have used Rain-X since my first car in 1979. And now the new products to their range are in use on my latest car.

From my experience the problem with any hydrophobic coating is the hazing that occurs temporarily after each wipe of the wiper blade. This is inevitable as the wiper creates a thin coating of water on the screen that then breaks up into tiny droplets due to the hydrophobic nature of the coating. The effect only lasts briefly but is annoying. It is true that at higher speeds the wipers might not be needed ( or can be put on intermittent) as the wind speed clears the rain droplets away by itself - but at lower speeds the wipers will still be needed. So you get this hazing effect.

I love these videos, thanks!

Brooo the intro is FIRE 🔥🔥

Awesome video as always 👌 I do love the gTechniq G1/2 glass coating, very good durability.

Well done Sandro...I have got the same issues using Carpro Forte many times...I think it's very dependent on the type of glass.

It's such a joy to express my satisfaction with the videos you produce. As a professional detailer, finding others that have tested the road prior to me is a real asset. And when it comes to the quality of producing one of these videos and being the number one detail that I trust, well obviously it's you. Terrific! And this test just save me a ton of time and future issues and I totally agree with you. Thanks again

Fantastic video, great content and wow the amount of detail and work you put in. Bummer on the CarPro not working out, but glad you didn't scrap the video.

thank you so much for explaining flash 😊

Thanks for this video, I've never used a glass coating before so this was perfect. Due to an accident the machine polishing is now out for me so will try NV Glass Lite a try. Cheers Sandro.

Hey Sandro! What a surprise and funny situation! Rainy day here in Sweden, big windows from the floor to the ceiling coated by CarPro Reload (yes, don’t laugh please), my wife and I are enjoying windows water repellency and watching your video about almost the same! ))))) Let me add some little extra info maybe will be useful for you or for you Guys who are reading comments - I have applied CarPro Forte and CarPro Flyby 30 many times to my vehicles with different technics and the result was always approx. the same - working, but not as good as other cheaper water repellents on the market. And I got a possibility to talk to one of the CarPro Guys who has connection to chemical lab and he described me everything I need to know - as CarPro is manufactured in Korea and need to be imported to other countries (sorry, talking about the EU now) they need to have all the chemical certificates that they are “Earth Friendly”, etc and he told me exactly the thing inside chemical formalus which making the major effect of water repellency is not okay for certification, so they need to create their products without it. That’s why they are continuously working on the formula to achieve best result and that’s why the user guide looks like a mass. And as a result even this Guy advised me to use one of the EU product that don’t need to have import certificates and have “not Earth Friendly” chemicals inside. I have choose the one I was able to find out and it was rain repellent from Max Protect from UK (yes, before Brexit) and I have been surprised it is working like it should and much better of CarPro’s. Application experience was approx. the same as CarPro, three layers to windscreen, one to all other glasses. Experience and daily driving for 8 months - still working fine. Another thing to add Sandro - I have used rain repellent from Turtle Wax many years and I am love it still as I believe it’s working the best (as you have seen on the RainX on your video, I believe the product from Turtle Wax is from the same league). The one disappointment from the Turtle Wax product is need to be reapplied after one month. Nova is not available in Sweden, so need to continue with CarPro products which are the best I believe now and here) Sorry for such a long comment. Love your video and music! P.S: CarPro Reload is doing great on the house windows for 3 years now, washing them twice a year only 😊

Having NV Glass installed this weekend. 👍

Very Informative! Thank You!!

Well, another Nova product I'm going to have to try.

I have bought rainx few years ago, still running on same bottle. Takes 3 minutes to apply, Cheap...winner in my eyes

I like the music you chose for this video compared to others! Nice work on the editing too!

Thank you for the information 👍👍

great shots from underneath - another classy vid

i love your videos!!! keep it up!

This is a really really cool video!

Great sound track Sandro

Glass is my least favorite part of detailing. It is great to know what is easy to work with and how it performs. Now I can make an informed decision. Thanks Sandro!

Amazing as always. Some of the products I can not get in the UK but I was very interested in the rainX and think for £4 I will give that ago I do have some old Gtec but this is well over 2 years old now so may not risk it. James

Fantastic video! I’ve been waiting forever for a comparison video like this!

wow, just great content from you!

Thank you so much Sandro

I feel you on "not bonding as it should" for a long time I've used spray waxes on my windshield as a rain repellent. They more or less worked really well but with ceramics basically nothing (spray ceramics) would bond, and if it did it was extremely hit or miss. Turtle Wax Hybrid Ceramic causes my older cars windshield to head very well, does nothing on my new car, it just doesn't seem to cure to the surface. Mother's CMX seems to bond to both which is what has become my go to as I'm not a big fan of it's longevity in my climate on paint so sacrificing it for the windshield is some use for it.

Great video Sandro, I used Rain X years ago and could not stand the wiper chatter never been game to use a windscreen coating since. Nv Nova Glass looks good but not sure how application would go here in tropical Queensland. Thanks for taking the time to do this comparison video Cheers.

I've always just used Rain-X and to this day, still do. It's cheap, it's easy to use and it performs amazingly (the water bead contact angles to me seem to be well in excess of 120 degrees). With that said, I always polish the glass with CarPro CeriGlass (and an old polishing pad, at the moment it's a lake country white foam pad) as I feel it's the only thing that truly gets the glass completely bare. You can tell it's completely bare when you wash it and rinse and the water is just completely flat. Even waxes bond to it and bead up when it's that clean. I know it's a bit overkill, as not every car needs it, specially not new ones, but since most cars in Puerto Rico have hard water-spots on them, that's just my preferred method. As for the Gyeon instructions, I think I understand what you mean and I agree. It seems to me they're just mystifying the process to make it appear more sophisticated than it is. I've never used it, but I bet their "primer polish" is just a regular cerium oxide based glass polish like CarPro's CeriGlass. Sandro, I've never felt the need to try anything else, as Rain-X has always pleased me with its results, but after watching this video, now I wanna give the Nextzett coating a try! It seemed to be the most hydrophobic out of the pack (even more so than the Nova coating) at least from the video, and at least before all that chemical torture. I understand it likely looks much different in person, but either way, the Nextzett is much cheaper than Nova, so I'll just try that one out! Thank you for always providing value in your videos Sandro, your effort to do testing and documenting/presenting it in such a nice and easy to digest manner and sharing your results with the world does not go by unnoticed and unappreciated. Oh and one more thing we agree on, Stoner makes an incredibly good glass cleaner! It's effective, it's cheap, and it also doubles as a panel-wipe. I use that instead of the much more expensive options like Gyeon Prep or CarPro Eraser when prepping the paint for a coating/sealant application.

That’s a very thorough test but people don’t use these products on glass panels in their yard, they use them on actual car windscreens. The problem I’ve always had with these products is wiper smear/hazing. It would have been really useful to know which product was the best or worst for this.

First off, the song that starts around 10:30 is smokin'... sounds sort of like a male Dua Lipa... that said, this was a great video. For someone like me, the rain x seems like the call. I'd rather have to apply it more often but have it be relatively idiot-proof. "Easy and good enough" is what I'm looking for. Great video, thanks.

Yep rain x for price and just how easy it is to apply and keep it updated as well, so much better, not saying others are better ,but cost and ease of application rain x is the best, used it way back more than 30 years ago?

In practice, rain x does the job for me and i don’t think i’m missing out on anything. i’m also the type of DIYer that polishes the glass once every 2 months where i put in more effort than most

Another great video Sandro mate never let us down ! Can you please do a test on Australian retail products in stores that remove TAR. For example turtle wax big and tar and autoglym tar remover and also the bowdens tatatar 🤟 thanks dude

Love your work Sandro!! Would you recommend topping NV Glass with a sealant or ceramic spray?

I see you have the alpha on ramp. Where you giving it a maintenances wash. Great video, keep them coming.

If you ever do a new one, please include Aqualpel. I have been using this for years. Ow yeah. I normally never reply to you video's but I do watch them al. Great Job!!

Hey Sandro, thank you for the amazing info!! I’ve used multiple rain-x and soft99 branded glass sealant. Great behaviour and long lasting! Only issue i’ve had with em is streaking when the windshield wipers are (rarely) needed. Any ideas on that? Is it a mistakr on my side or is it the nature of glass sealants? Love you work and your content, keep up the fantastic videos!!

im using glaco roll on large on my panoramic roof and windscreen and rear glass and its still working after over a year

Shocked by the flyby. Used it recently and I was impressed thinking I had the best one out there. But seeing better products at a lower price is a shocker.

Great video as always man! Any tips on how to clean the inside of a reflector headlight?

The best 👌

I've used RainX in the past, but lately, I've had more time to wash my car (so usually weekly) and just wipe the entire car down with bowdens boss gloss, or afterglow. This will usually be more than adequate for the windscreen to getgood enough beading that you don't require the wipers if its raining or you're doing 50+km/h. And seeing as its applied every weekend (at most, two weeks) it's only got to last that long. Plus, it doesn't take much time at all, seeing as the entire car is being wiped down any ways. Lazy. I guess.

Very cool video Sandro, as always . I had been using AW H2GO until recently my wipers started squeaking and dragging. Which was a shame as the water behaviour was amazing. I removed it and went to Nextzett I am very happy with it. No chattering or dragging wipers. I tried the Gyeon previously and hated it. It was pain to remove like you said. I’d love to see an anti fog treatment if possible. I’ve tried the Gyeon Antifog and it was the biggest pain to remove.

You are absolutely right about the Carpro instruction mess Sandro. It is so important to do it the right way to get the best result so you need correct instructions but they make a complete mess of it. Unbelievable. Having (very) good products and destroying it with vague or wrong instructions. Recently I used their inside fog fight product and it became a complete mess. With sunlight or in the dark the windscreen became very dangerous and I had to remove the product. Again, wrong instructions? With the 2020 version of Flyby forte I got good results thanks to some good (right) instructions on RU-vid, not from their box.

Honestly, I use Stoner hybrid ceramic rain repellent + cleaner, to clean my windshield. Then use rain-x water repellent a few times… I pair this with my Rain-X quantum elite windshield wipers, and Rain-X windshield wiper fluid.

Love extreme solutions products. We need a distributor in the Uk

I came here searching for the next best thing beyond rain X, but as a rank amateur who used rain X from practically day one, and only cleaned with Windex, no IPA no nothing LOL, I was very impressed with its abilities. And of all things, rain X has a weird smell I really like Hahahahaha. It might not last as long but for me it's quite easy to apply so based on your evaluation, I will continue with my status quo. Thanks for the affirmation!

One coating I would have loved to see is Gtechniq G1. I have installed that coating on many cars and never had negative feedbacks. And well CarPro FlyBy Forte... a great disapointment. Cheers!

Hi Sandro great video again - I know that the wipers should also be coated to prevent chatter, but could you do multiple layers on them like you would the windscreen, or just stick to one layer and re-apply when necessary?

Excellent analysis, as always.... I've returned to using Nextzett after experimenting with more premium brands for a while and I find Nextzett as honestly being the best all rounder, and it causes absolutely zero wiper judder for me. At €9 a bottle here in Ireland, it is amazing value also... If applying any glass sealent, it is essential to (1) deep clean the wipers with a rubber cleaner or stong APC followed by a wipe with a paint prep IPA spray and (2) lift the wipers off the windscreen while the sealant is curing...... Another excellent Nextzett product is their is Kristall Klar windscreen wash. It's super powerful, yet safe on paint and rubber seals.

RainX is fantastic for what it cost but doesn’t play too well with wipers. I use it for all windows except the front windscreen. With a good application it can easily last up to 6 months with good water repelling performance.

I would never have thought to machine polish glass.

I apparently applied my Carpro Forte wrong too! Lasted only a week!

Rain X is the best all round, I've used it for years

Another great vid Sandro! Question; would it be ok to wash screen with dish detergent to fully strip it prior to coating process?

rain X is no fuss, value for money. easy to apply and works great.

I use rainx all day. Now fena try that Nv Nova

Super Job! I noticed at around the 2 min mark that you chemically and physically deconned the glass without rinsing in between. Can you do this with paint as well? It would save time.

Great review! Have you used the NV Nova long term on any vehicles? Wondering if it suffers from wiper chatter.

I’ll stick with rain-X For the price, it still performed great! I don’t mind giving it a booster coat every 2-3 months…. and that’s all it needs. Just wash your car, and give it a quick coat and buff off. Yeah, do all the prep work for the first application, after that, just touch up coats work great.

Rain X is awsome. for few bucks on a not so prepped glass it sheets and beads like crazy even in storms

I've been using Rain X for years and absolutely love it. I just spent 6 hours using Griot's Garage Clay Bar with their Speed Shine Lubricant, then polishing the windows with Griot's Garage Fine Glass Polish (Pinnacle Glass Polish is just as good) and then applied Rain X. I drove in my first rain storm today and can't believe how good Rain X is. For the money it's an outstanding buy. Rain X will last an extremely long time on the side and back windows. On the front window you will have to apply on average once a month. I don't care what Glass Coating you use when you put on your wiper blades on the coating won't last that long. I recommend Rain X & just apply it once a month on your front windshield. Please understand that you have to prepare the glass properly first by using a clay bar and then machine polishing thereafter. The results are so impressive. When I drove today for the first time in the rain the water didn't even stick to the side and rear windows.

Good testing. I would like to see them perform on snow, ice, sleet and after mud, road grime, bug slime, tree sap, oil, and other contaminants.

you should so make the section of video testing the glass, embed some pink floyd music in the background :D

Another great video from you . I always wait for such comparison in your chanel. I use Gtechniq on my cars which I found it's still best in EU market. I try 4 from your test and still G1 from Gtechniq works much better and longer. I have a lot of rainy days thrue whole year so good product makes a difference. I hope maybe next time you will use G1 from Gtechnic in your test. Anyway I'm waiting for more test from you 👍

Nice test. Though would be nice to simulate how good they hold up against wiper usage. I used Nextzett myself twice, once on clients car did crisscross application and let it sit 10 mins before buffing out, not sure how it’s holding up, 2nd time on wife’s car and buffed off right away as was recommended by nextzett official youtube channel, it was supposed to make buffing off easier, it was actually opposite, also not even month later while washing car could see how the coating is quite dead on the trails of wipers, i only did 1 layer though. Could notice poor performance while driving in rain as well. As i have read so many good things i will give it another try, will do 3 layers and circular motion on application. If you ever do another test, maybe also with physical durability test. It would be awesome to see products as: Gtechniq G1, Soft99 Ultra Glaco, Koch Chemie Nano Glass, Angelwax Exodus. Next to the champions of this test.

Nextzett looks better on hydrophobics than NV from the footage. In saying that, I use Gyeon WetCoat as a window drying aide after each wash and that's more than enough for me.

I've tried Forte, View, Rain X, and Stoner. Forte lasted me the longest even with wiper use. I've had past RainX windshield applications fail after one day and otherwise found it held more grime in general. Maybe I'm remembering wrong. I've been curious about Nextzett Glass. I'd probably use that on side and rear glass. Reminds me of Griot's Glass Sealant.

Sad that most of the detailing shops in my country won't polish the windscreen, so difficult to remove watermarks and contaminants by hand before applying windscreen coatings...

Golden Rule of Detailing "What goes on easy comes off easy"

Really nice review Sandro. Thank you for your hard work and excellent description of all these glass sealants/coatings. Do you have any experience with Polishangel RAIN 9H glass coating? I was thinking about buying a bottle the next time I make an order from them. They also have their CRISTAL glass polish as a sort of primer and they recommend before applying the coating. I was just wondering if you had ever used those before and what they might be like as far as application, performance, and durability. They are pretty pricey (as all Polishangel stuff is) but I do love using Polishangel products!

great video :) compare to ceramic coatin on the wildshield what you think ? what the best performence and with time ? :)

Can you please do a comparison with Gyeon vs 22PLE VG1, and Glassparency?

Been using Rain-X since my first car 22 years ago. In New England, it makes winter easier.

RainX wins for me, the glass cleaner spray is cheap and can be used to easily top it up. Plus you can get both the coating and the 2in1 glass cleaner spray from any shop on the road - easy.

Awesome content as always. I had been waiting on this one. :) I do have a follow up question, what is the best option to compliment these coatings for windshield cleaner? Do you have a suggestion as to what we should put in the tank to wash it while driving? thanks as always :)

Rain x number one choice but new turtle Wax spray and shine this seems to be giving a better durability but I think further testing needs to be done with this product what do you guys think

Nice review, thanks as always. So with Carpro what is the right way to apply and what did you do wrong for it to perform so poorly?

Hey Sandro! Thanks for the comparison video. I went with NV Glass over CarPro awhile back for my window coating. It worked out great for me! I must say that RainX along with Turtle Wax are Big Boys that have stood the test of time and can still hold their own. Great video once again! I have a question about the NV Evo coating...I know through your past videos you stated that Evo was created as a one layer coating but could be layered if desired. How long should I wait to add the second layer? Thanks