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Gtechniq Crystal Serum Light - 30 ml

Best Seller Gtechniq Crystal Serum Light - 30 ml
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Available Sizes

Gtechniq Crystal Serum Light
30 ml
($2.53 / ml)
Gtechniq Crystal Serum Light
50 ml
($2.20 / ml)

Product Information

  • Paint coating that adds a beautiful gloss and durable protection
  • Gtechniq proudly claims the protection will last 3 - 5 years
  • Designed after the professional use only, Crystal Serum Pro
  • Product Codes: CSL 0.03 x6, CSL 0.05 x6
  • Read full description

Customer Reviews

96% of customers said that they would buy this item again
Based upon 57 ratings

Product Description

Gtechniq Crystal Serum Light (CSL) is a high quality coatings that will add an unbelievable amount of gloss, depth, and protection. It is so strong that right after you apply it you can't remove it with traditional polishes you would need to wetsand it. CSL was designed from the same DNA as the incredibly popular, but professional only Gtechniq Crystal Serum. The original Crystal Serum professional coating boasts a 7 year guarantee from Gtechniq and they took it upon themselves to make an easier to apply consumer product, which is Crystal Serum Light. While the original Crystal Serum is supposed to last 7 years, CSL will last approximately 3 - 5 years according to Gtechniq. CSL's ultra-durable, high-gloss, slick to the touch, 9h clear ceramic will reach about 80% of the CS Pro's performance (scratch and chemical resistance). When compared to the other consumer Gtechniq coatings (i.e. C1 Crystal Lacquer) it is about double the performance (scratch and chemical resistance). The gloss and shine of the paint is simply put, amazing, and your paint will really stand out above the rest. For the best results we highly recommend removing imperfections before application, like you would with any coating. Once your paint is thoroughly cleaned and prepped with an IPA or Panel Wipe wipe-down, apply CSL in a nice thin layer panel by panel. For in depth application tips check out the steps directly from Gtechniq below. Once applied, CSL will be resistant to chemicals ranging from pH2 - pH12. This means your paint will stay clean and protected from the elements for much longer than before. Pick up the Gtechniq Crystal Serum Light today and experience the amazing look on your car that only a high end coating can supply!

CSL Includes
  • 1x Bottle of CSL
  • 1x Dropper/pipette
  • 1x Applicator pad
  • 1x Pair of gloves
  • Instruction/info sheet
  • Gtechniq sticker

Application & Storage:
  • To apply CSL your vehicle must be indoors and it must remain indoors for at least 12 hours after application
  • Wash and decontaminate your vehicle's paintwork. If required, clay your paintwork to remove other bonded contaminants
  • If needed, polish your paintwork, either by machine or by hand, to remove any imperfections
  • Spray Panel Wipe onto a microfiber towel towel
  • With your panel fully cooled after polishing, taking care to avoid any paint protection film or other types of vinyl film, buff away all polish residues. This process ensures you will get the maximum number of chemical bonds between the coating and your vehicle's paintwork
  • Put on gloves to prevent CSL coming into contact with your skin
  • Soak the applicator pad with two full measures from the pipette and work the liquid into the pad to get an even saturation
  • Replace the lid on the bottle and set aside - do not keep the bottle in your hand as this promotes premature curing
  • Apply with applicator provided in overlapping strokes to an area roughly 2' x 2', or work to the bodylines of the vehicle
  • After coating a single small panel or half a larger panel, remove residue with a clean microfiber towel. Always remove from further than you have applied, working from the outside in. It is essential to check for residue
  • You may need to buff the same area several times to remove residue. We recommend using two microfiber cloths at any one time. Please note that you are only removing excess product
  • When working with coatings, we recommend you inspect the panels with a bright but diffuse light source, not with bright spot lights which are very poor for spotting coating residue
  • Avoid buffing with too much force as this can spoil the surface you are protecting, and you may also drag the partially cured coating off the surface
  • The microfiber cloths you are using should be rotated sufficiently and quickly so that CSL does not partially cure in the cloth, if it does cure then buffing residue will be significantly more difficult
  • If you miss removing residue and it cures fully, you should re-polish this area, and reapply CSL
  • As soon as you finish put the microfiber towels in water, and wash and dry them as soon as possible
  • Use CSL within 1 year of purchasing, for best results, once opened use within 3 months
  • Store opened bottles in a dry and cool storage area that is out of direct sunlight

Professional Detailer Reviews

My initial impressions of any coating are always based on of a few key points: Price, Ease of use, and Gloss. This coating is competitively priced relative to other consumer coatings, so that is great to see. I was very pleased with the ease of application, and the final appearance of this coating was excellent.
Initial Impressions: Gtechniq Crystal Serum Light (CSL)
Overall, I'm very happy with the application of the Gtechniq CSL coating. It is fairly effortless if you remove it within the right amount of time and if it performs as advertised, it will be a competitor to the other coatings on the market.
Initial Impressions & Application: Gtechniq Crystal Serum Light (CSL)


Detailed Image Video Icon Gtechniq Ceramic Coatings - C1 Crystal Lacquer - HALO Flex Film - CSL Crystal Serum Light - EXO

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Detailed Image Video Icon Gtechniq Crystal Serum Light Overview and How-To Product Video

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How to apply: Crystal Serum Light

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Easy Application Gtechniq Coatings - CSL Crystal Serum Light & C2 V3 Liquid Crystal

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How To Apply Gtechniq Crystal Serum Light CSL

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Crystal Serum Light Promotional Video

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From The Label

Product Description

Crystal Serum Light is the prosumer version of the world famous Gtechniq Accredited Detailer only Crystal Serum Ultra.

Serum Light offers 80% of professional Serum's performance, but if applied incorrectly can be machine polished from your vehicle paintwork.

When it comes to adding glass resisting swirls, contaminant and dirt repellency. Gtechniq Crystal Ultra and Crystal Serum Light are the pinnacle of paint protection.


1. Perfect
If required polish your paintwork to remove any imperfections.

2. De-Grease
Use Gtechniq Panel wipe and a MF1 microfibre cloth to remove all residues. Chemically bonding Crystal Serum Light will adhere best to surgically clean surfaces.

3. Apply
Soak the application pad with 3 full measures from the pipette. Spread onto a small panel, or half a large panel and immediately remove residue with a MF1 cloth, follow with a second wipe.

Customer Reviews

Reviewed by on
Would they buy this item again? Yes
CSL is a great ceramic coating but like ANY ceramic coating it's all about maintaining the coating. I had a customer complain it failed but that person wasn't taking care of the vehicle. Then I have a customer that leaves the car out year round and sees sun 100% of the time along with rain it has gone on 3 years and its running strong. Both vehicles were Installed around the same time and both had EXO on top layered right after CSL install.
I then went on to Install CSL only on another car and its been about a year its held up nicely with proper care.
be prepared to spend a long time installing CSL and EXO because you need to do it roughly right after you install the CSL it is a bit of work.
Environment and Location... Located in Hawaii UV index is anywhere between 8-12 Mostly sunny with rainy days mixed in.
Reviewed by on
Would they buy this item again? Yes
Our go to is Crystal Serum Ultra topped with EXO v5. It's arguably the best coating you can get. CSL is very close and super easy to apply if you're familiar with coatings.
Reviewed by on
Would they buy this item again? Yes
Great product. Very easy to apply if you follow the directions. I used this plus the EXOv5 and it provided a super slick and brilliant finish. I do recommend polishing the surface with either a light polish and pad application or medium polish and pad, depends on how scratch free the paint surface is. I Used the Rupes Uno1polish and white pad on a car with very light scratches and Uno performance polish and yellow medium pad where more difficult scratches were. Both polish products removed the scratches to allow a very clen surface to apply the CSL. Follow directions! And if you have any concerns watch Rupes and Gtechniq videos on there websites. Once complete you will be amazed with the final results.

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