Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light
Gtechniq Crystal Serum Light

Gtechniq Crystal Serum Light

Regular price $110.00


Crystal Serum Light is trusted and used by many professional detailers including Status Detail! It is a tremendously robust Ceramic Coating that will deliver 3 to 5 years of durability. Crystal Serum Light, also called CSL, will add unbelievable levels of gloss to your paint. CSL adds scratch resistance and will resist swirl marks which is especially helpful on dark colored cars. Your car will stay cleaner for longer and will bead water relentlessly! A ceramic bead is almost a perfect circle, it looks like a perfect bead of water almost hovering on your paint! Nothing beads water like a true ceramic coating. CSL will also sheet water very quickly! 


Crystal Serum Light by itself can deliver 3-5 years of durability. The 2 year variation is for how well you care for it and how much use the car will see and how good your install is. Cars that see 3 to 4 years are daily driven and rack up a lot of miles. Expect 3 years if you are driving in salty conditions routinely in winter. Cars that are not daily driven can easily achieve 5 years durability. Automatic car washes should be avoided at all costs and the car should only be hand washed or automatic but full touchless washes.


When you top Crystal Serum Light with EXO V4 and create a Dual Layer Coating you can see up to 7 Years of durability! EXO is VERY easy to work with. If you can put CSL on you can easily top it with EXO. EXO will have more swirl resistance, more gloss, and best of all it bumps the hydrophobic qualities to an unbelievable level!

Crystal Serum Light is the little brother to product in this video. The video does a great job of explaining ceramic coatings and is from the same manufacture of Crystal Serum Light.


To get great durability is very simple. Use a great soap like Reset or Bathe with a quality wash pad like the one in our store here. Use a foam cannon as often as possible and dry with a electric leaf blower or high quality drying towels. Blow drying is safest and fastest. Last but not least we recommend you use Cure or Reload as your ceramic sealant. These products are designed to bond to your ceramic coating and essentially hydrate it or rejuvenate it. Use them once every few months or monthly if you're really into spending time with your car and miss the waxing days.


Durability can vary drastically depending on how well you install a coating, how long it cures for and what climate it cures in. Proper washing and avoiding automatic car washes is very important. The above durability is listed as if it were installed in perfect conditions and cured in perfect conditions. 


Ceramic coatings can be difficult to install. In fact most DIY car enthusiasts avoid trying ceramic installs because the word of mouth is that it's difficult or someone they know had a horrible experience installing it on their pride and joy. CSL is basically as easy as applying a traditional wax! You apply it with a Gyeon block and suede applicator. Pour a line of CSL onto the applicator and then work it in like a wax. You can use a cross hatch pattern too. Work panel by panel, so don't try to apply CSL to the entire car and then remove it from the entire car. Break up panels into 2 or 3 sections so you have a manageable working area. The easy install is to apply the product and then basically remove it right away. This won't give you full durability but it will be easy and reduce the risks of putting a ceramic coating on wrong. It is very hard to get a high spot, for example, with this method. The proper install is when you leave CSL on for an initial cure and then remove when it's just right and ready for removal. The instructions included describe the timing. The perfect time to remove is different depending on temperature and humidity. Practice makes perfect as you learn how the product behaves in different temperatures.


When you're looking at a $100 product like CSL or a $95 product like EXO V4 or maybe you're looking at doing both it is hard to call that good value. But you need to look past the face value numbers especially if you're used to buying ceramic sealant like Gyeon Cure for $35. A professional Ceramic Coating installation is well over $1000 and a 2 year coating will often run close to $2000. So even if your install is not perfect in your garage, you're getting real ceramic for a fraction of the price and getting tremendous value! Don't get me started on the "real ceramic coatings" advertised often on social media from no name companies. Gtechniq is used by professionals around the world and we have personally put it on cars that cost more than most people's homes! This is the real deal. 


9 out of 10 times I recommend you get the 50ml bottle. You can put CSL on paint, trim, glass, wheels and door jams. You can knock out two cars with 50ml but on a full size car 30ml gets you thinking "will I have enough?". If you go with the 30ml bottle you could coat something small like a BMW M2 for example. It's best to have extra on hand if you need to touch something up or you get a fender bender and need to re-coat after the body shop does it's work.


- Wash your car with a premium soap like Bathe or Reset.

- Clay bar the paint if it feels rough after the paint is clean from the wash.

- If the paint is still rough or has small rust spots use CarPro Iron X. This step should be used almost no matter what but can be skipped if on a budget.

- Paint correction or a light polish with a DA polisher is recommended. If you have swirl marks and want them fixed, this is the time to do so as the ceramic will lock the swirls in. If you have what you think is perfect paint, I would recommend a light fast polish of the entire car with an orange pad from Lake Country and a light polish. This will make your ceramic bond stronger and increase durability. 

- If the car is polished or not polished the next step is to use Gyeon prep or Carpro eraser to prep the paint. This removes any left over polish oils and even if you didn't polish, it will still remove all dirt and left over residue from the paint. This is like a surgeon washing his or her hands before surgery. This step is CRUCIAL to a proper install and good durability.

- Now we can lay ceramic down! Wrap your Gyeon suede applicator around your Gyeon Foam Block and put 5-6 drops of ceramic onto the suede applicator. I basically do one full line across the pad. Rub the ceramic into the paint in a cross hatch method. Do the hood in 2-4 sections for example. I usually split a hood down the middle and a door in two sections too. Don't rush! As you get more comfortable you can do larger sections. 

- Use a clean microfiber towel and wipe the ceramic off the panel. You will have to wait anywhere from 20 seconds to a minute or two. You want to see the product almost start to bead or sweat. This is the best time to wipe off. If you're nervous and on your first install I recommend you apply it and wipe off after 20 ish seconds. Your durability will be worse but you will lower your chances for mistakes and high spots a lot! As you do more installs you will see how the product works and be more comfortable pushing the limits of the initial cure time. 

-Once Crystal Serum is on you should wait at least 24 hours to drive the car, especially in rain! The ceramic will cure for 6 days after the initial 24 hours. During the six days you can drive the car but should not wash it unless it gets covered in bird poo or salt or something that would be considered heavy dirt.

-If you're putting EXO V4 on wait 1-2 hours after CSL was installed. Then put EXO on in the same way you did CSL. EXO is much more easy to work with and forgiving. It will require 2-3 wipes to remove so have lots of towels ready! When you apply EXO you wait roughly one minute and then remove it. If you do a full hood by the time you apply it and wipe from where you started to remove you will be good to go. So you basically remove it almost right after you put it on if you work in a uniform fashion.


Crystal Serum Light is the prosumer version of the world famous Gtechniq Accredited Detailer only Crystal Serum - a coating so hard that if applied incorrectly can only be removed by using 1,500 grit sand paper.     
Serum Light offers 80% of Professional Serum’s performance, but if applied incorrectly can be machine polished from your vehicle’s paintwork.           
When it comes to adding gloss, resisting swirls, contaminant and dirt repellency, Gtechniq Crystal Serum and Serum Light are the pinnacle in paint protection.


Serum Light forms an ultra- durable, high-gloss, slick to the touch, chemically bonding inorganic layer of 9h optically clear ceramic.  Once applied, gloss levels will remain in the upper 90th percentile for significantly longer when compared to traditional paint protection products, and cleaning your car will be a breeze.

The high density ceramic layer is resistant to chemicals ranging from pH2 - pH12.  This characteristic also makes bonded contaminants such as tree sap, tar, and hard water spots, easy to remove.

Unlike mainstream wax and organic polymer coatings, Serum and Serum Light can resist much higher and lower temperatures.  They resist temperatures as low as -40o to as high as +250o C.

CSL Includes

  • 1x Bottle of CSL
  • 1x Dropper/pipette
  • 1x Applicator pad
  • 1x Pair of gloves
  • Instruction/info sheet
  • Gtechniq sticker
Why choose us?
Tested By Professionals

Every product on this store is used in our detail shop daily. We tested everything, threw out the products we didn't like and stocked everything we loved. All products available here have been used on 3.3 Million Dollar Hyper cars and are routinely used to care for them.

Driven By Passion

Our business is driven by passion and designed for car enthusiasts. If you are passionate about cars and taking care of your car with the best car care products, then you found your new home. Every product on this site is a professional level car care product that can be used by the enthusiasts.