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🛡️ Elevate your ride’s shine and protection to legendary status!
Gtechniq Crystal Serum Light is a premium ceramic coating that chemically bonds to your vehicle’s paint, delivering a high-gloss, swirl-resistant finish with up to 5 years of durable protection. Engineered with advanced nanotechnology, it repels dirt, water, and contaminants while enhancing hydrophobic properties, making it the top choice for professional-grade automotive care worldwide.











| Asin | B07C4JRDY1 |
| Best Sellers Rank | #5,065 in Automotive (See Top 100 in Automotive) #5 in Automotive Top Coats |
| Brand | Gtechniq |
| Customer Reviews | 4.6 4.6 out of 5 stars (986) 4.6 out of 5 stars |
| Date First Available | June 18, 2018 |
| Exterior | Gloss |
| Item Model Number | CSL 0.05 |
| Item Weight | 4.6 ounces |
| Manufacturer | Gtechniq |
| Manufacturer Part Number | CSL 0.05 |
| Model | Crystal Serum |
| Product Dimensions | 2.17 x 2.17 x 4.33 inches |
| Special Features | Odour Blocking |
User
Ceramic by GTechniq
I'm one that is always trying new wars etc for cars so I can take care of this non-VOC paints they use now which pale compared to car paints of old for longevity. Prepped my car, washing, stripping, polishing, the works. Since we as nonprofessionals cannot buy the good stuff we are relegated to buying lesser products. I had gtechniqs applied professionally to wife's outback because dealer grade stuff sucked (never buy the ceramic package offered, it's not as hard and is cheaper grade and scratches easily etc. After seeing how her car looked, I wanted to do something to lessen my job caring for my own car ('17 Legacy) i bought this because reviews are generally stellar for g tech. The CSL along with EXO v5 was a simple and very easy process (outside of the prep needed to get to application point). The CSL looked great. I bought the 1oz csl and 1.7 oz EXO. I wish I had bought the larger CSL but I did not coat my front grill area because of the rock chips as I may want to refresh that first. It's hard to know how much to use but as time goes you figure it out. The dropper looks like it has peyronies and it caused me to miss the pad a couple times(the applicator is small, 2-3 fingers at most but effective especially given amount used). CSL is better than C1 from the time between finishing application to being able to apply EXO (2 hrs for CSL, 4hrs for C1).NOTE: if they have them, buy extra application pads in case you drop yours on the ground. Also buy some new and good removal rags as you will need them. I am very happy with results on my car and given that you can refresh the EXOv5 in a couple years without much trouble thus means you can save the CSL from degradation without doing all the extra work. The CSL did fill in some minor scratches but for most part you need to do well correcting.Buy a light for inspectingBuy the Panel WipeBuy at least a 12 pack of microfiber rags, the low profile (P1) rather than fuzzy ones and mark your wet removal one with a sharpie so you know which one is which.Buy large bottle of EXO to apply 2 coats.Be aware that you will spend a few hundred if you purchase window ceramic and polishes and residue remover BUT if you are detail oriented this system is hands down easy af. I am grateful the GTechniq makes a consumer grade product.I included the products I used but as of yet I have not bought the trim coating for my black rubber straps. I'll wait until full cured so I can tape off safely
User
CSL…Still One of the Best!!
Gtechniq CSL is one of the best and easiest to use consumer ceramic coatings on the market.Applying the coating is an absolute breeze allowing the installer to work around a vehicle in a relatively short amount of time.After the coating is cured the gloss is stunning. Water sheds right off making cleaning way easier.I got a 50ml bottle for a 2026 Toyota 4Runner and used just a bit more than half of the bottle. I coated all the jambs, paint, wheel faces and side glass. The windshield received a dedicated glass coating.CSL is still one of the best ceramic coatings available to the average Joe.
User
Easy to Apply and Looks Great
Bought this becuase I’m not quite ready yet for more “professional” ceramic coatings, and this is one of the few 5yr ceramics on the market that’s super easy to install (this and Ammo Reflex). I’ve applied CSL on 2 cars so far and both were incredibly easy to apply as long as you’re careful. Most important thing is paint prep which is more challenging. Make sure you have good lighting as even a smudge or hand print can be noticeable if you don’t wipe thoroughly. If you do it correctly and polish beforehand the result will be an incredibly smooth glass like surface that has zero tack or texture. Highly recommended, just keep in mind one bottle will only last one car and make sure you have a few microfiber towels on-hand.
User
Amazing
Do the prep work correctly, apply this, it’s easy and then tip coat with EXO V5 and be ready to be amazed
User
Perfect DIY ceramic coating solution!
Superb product to use after gtechniq crystal serum light. This is a great hydrophobic layer to put on after your ceramic coating. I’ve used this on a handful of vehicles and sets of wheels and it creates an unmatched level of protection and ease of cleaning. I coated this car 18 months ago.
User
Caution - Use liquid sparingly
I was tried of waxing cars, so I thought this might be worth the price. It applies very easily (Too easily for this newbie). I did the 1st 1/4 of the small car and realized I only had a 3rd left. I stretched it with both the applicator and the MF towel to "finish" the car. Car does look great, so time will tell how it lasts. Car is a 2013, so I not sure if old paint absorbs more, but 1 oz is NOT enough for a larger car based on my 1st try. Now I have to decide if I buy more for my minivan next.
User
Great Gloss and Protection
This coating gave the paint a deep, slick shine and made washing the car much easier. Application takes patience and good prep, but the end result feels worth it. Water beads nicely, and the finish looks cleaner longer.
User
Application
Ive been working with ceramic coating for over 5yrs. This is the easiest coating i have ever used. The end result is the best by far!
User
Soncar Dornbirn
Wir führen Keramikversiegelungen seit knapp 8 Jahren durch und sind mit dem Produkt sehr zufrieden. Auf jeden Fall empfehlenswert. Lg Team Soncar Autoaufbereitung Dornbirn
User
Muy buen producto....
Fácil de aplicar....rinde mucho...
User
Buon prodotto, ma stoccato male.
Prodotto ottimo, a mio avviso non c’e’ prodotto migliore sul mercato. Il tallone d’achille e’ il tempo e condizioni di stoccaggio. Ho ricevuto in due occasioni il prodotto che stava iniziando a cristallizzare. Cio’ significa che e’ rimasto sullo scaffale per troppo tempo.
User
Excelente
Maravilloso
User
Easy to apply and great results when you follow the guideline for application
Superb pro-sumer genuine ceramic coating. I am an amateur car valeter and I look after 6 to 8 family cars. I taught myself to paint correct using a DA 12mm throw machine and a selection of pads and compounds. Now when family buy a new car and the dealer does that upsell of trying to get them to spend a thousand on a ceramic coating they so no, Dad will do it for cost of materials. I have now done 5 cars with GT CSL and if your follow the rules, it is a top class ceramic coating. 1 Wash the car thoroughly and dry. 2 Claybar car to removed bonded contaminants. 3. wash and dry once more. 4 Paint correct using a DA polisher and a fine cut compound. 5 Use IPA or panel prep on each panel, I do this twice. 6 follow the instructions and apply the CSL to half a panel at a time and wait until it flashes over ( 60 secs to 90 secs). Level with one microfibre cloth then buff a wider area with second microfibre cloth. Keep your levelling cloth and your buffing cloth apart from each other, maybe have different colours. Work around the car until you have done all the painted surfaces. Allow to cure undercover for 12 hours. Consider adding two coats of G Techniq EXO on top , again following the guidelines or using a spray topper like G Techniq C2V3. I have another car to do for my DIL so I will be buying another bottle soon. It doesn't matter how old the car is, as long as you do a full decontamination wash and paint correction. the oldest car I have done is 12 years old and it now looks better than showroom condition as there are no swirl marks. I really enjoy working with G Techniq products and my family love having clean , well detailed cars.
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