Gyeon vs CarPro: Mohs EVO, CQuartz and the Pro Lines Compared

Both brands sell a ladder rather than one coating. Gyeon's ladder runs from the retail-available Q2 Mohs EVO up through Q2 Mohs+ and Duraflex applied by a Certified Detailer, with the Infinite Warranty and 10 Year Mobile program sitting at the top and requiring periodic maintenance to stay valid. CarPro's ladder runs from CQuartz UK 3.0, the brand's most popular DIY product, through CQuartz Professional for accredited installers only, up to CQuartz Finest Reserve, available exclusively through CarPro's hand-picked Finest Detailers.

The practical effect is that comparing Gyeon to CarPro only means something once you specify which rung of each ladder you are on. A DIY Mohs EVO application has more in common with a DIY CQuartz UK 3.0 application than either has with its own brand's installer-only flagship.

Lined up by access and warranty, the gap within each brand is bigger than the gap between brands at the same rung.

Gyeon's Infinite Warranty and the Mobile Certified Detailer Program's 10 year coverage both require returning to a Gyeon Certified Detailer roughly every 24 months or 15,000 miles for a maintenance visit, similar in structure to the paid annual refresh other brands require on their lifetime tiers. CarPro's Finest Reserve warranty is comparatively simple on paper, a 2 year written term against fading, peeling and major gloss loss, but it is also the shortest top-tier warranty of any brand in this comparison set, shorter than Gtechniq Crystal Serum Ultra, Opti-Coat Pro Plus or even Ceramic Pro Silver.

Neither brand's installer-only warranty is transferable in a way that is clearly documented the way Feynlab's CarFax registration is, so ask the certified shop directly how a claim would work and whether it survives a change of ownership.

If you plan to apply the coating yourself, the two DIY products are close enough in performance that availability and price should decide it. CQuartz UK 3.0 has a slightly longer-documented durability range and a lower typical kit price; Mohs EVO's single-layer application is marginally faster to apply.

If you want a warranty, the decision shifts to network availability. Gyeon's larger global Certified Detailer footprint makes it easier to find an accredited shop in more cities, while CarPro's Finest Reserve network is smaller but hand-picked, which some buyers read as a quality signal. Neither warranty is as long as the flagship terms from Gtechniq, Ceramic Pro or Opti-Coat, so buyers specifically chasing the longest paper warranty should look at those brands instead and treat Gyeon or CarPro as the value tier.

Both Gyeon and CarPro sell an ecosystem of maintenance products alongside the coating itself, and how consistently an owner uses them affects real-world durability more than the small chemistry differences between the two brands. Gyeon's Bathe and Cure range and CarPro's Reset and Reload line both exist to extend hydrophobic performance between full reapplications, and either brand's DIY coating lasts noticeably longer with a maintenance spray used every month or two than without one.

This matters most for the DIY tiers, since neither Mohs EVO nor CQuartz UK 3.0 comes with an installer reminding the owner to maintain it. A buyer who treats the coating as a one-time application and never follows up with a maintenance product will see both brands underperform their rated durability window, regardless of which one was chosen.

Budget for the maintenance spray as part of the real cost of either DIY coating, not as an optional extra. A $25 bottle of Gyeon Bathe or CarPro Reset used every month or two is cheap relative to redoing the whole coating a year early because beading faded faster than expected.