Gyeon Q2 vs Gtechniq C1 Crystal Lacquer vs CarPro Cquartz UK 3.0 (2026 Comparison)
These three coatings dominate every ceramic coating comparison thread for a reason. Gyeon Q2 Mohs EVO, Gtechniq C1 Crystal Lacquer, and CarPro Cquartz UK 3.0 represent three different philosophies about what a paint coating should do — and all three do it extremely well. You've already decided a ceramic coating is the move. The question is which one fits your situation.
We carry and have applied all three. Here's the honest breakdown.
Quick Comparison
| Gyeon Q2 Mohs EVO | Gtechniq C1 Crystal Lacquer | CarPro Cquartz UK 3.0 | |
|---|---|---|---|
| Durability | 2–3 yr solo; 4–5+ with Q2M Cure system | 5+ years (layerable) | 2–4 years (layerable) |
| Application Difficulty | Moderate — tight flash in heat | Challenging — strict temp/humidity control | Moderate-Easy — most forgiving of the three |
| Gloss Character | Very high — warm, crisp reflections | High — clarity and depth over raw shine | Very high — dramatic wet-look on dark paint |
| Available Sizes | 30ml / 50ml | 30ml | 30ml / 50ml |
| Best Use Case | Enthusiasts who maintain their car | Pro detailers, daily drivers, longevity-first | First coatings, show cars, max visual impact |
| Price Tier | $$ (30ml) / $$$ (50ml) | $$$ | $$ |
Ease of Application
CarPro Cquartz UK 3.0 is the most forgiving to apply. Wider flash window, more readable leveling phase, better first-attempt results. If this is your first ceramic coating job, Cquartz is where to start. The EVO update to Gyeon's formula did improve the working window somewhat over the original Mohs, but Cquartz still leads here.
Gyeon Q2 Mohs EVO has a tighter flash window than Cquartz, especially above 70°F. Work one panel at a time and stay out of direct sun. The EVO generation improved the formula's leveling behavior vs. the original, making it more manageable for experienced DIYers. Still not the place to start if this is your first coating.
Gtechniq C1 Crystal Lacquer has the steepest curve of the three. Gtechniq recommends 50–77°F in a controlled environment. Apply too thick, wait too long to level, or work in humidity and you'll have high spots requiring machine polishing to remove. C1 rewards meticulous preparation and experience.
Durability
Gtechniq C1 wins on raw longevity. The 5-year claim is backed by real-world detailer results worldwide. Layerable — two coats measurably outperform one. If a customer wants to coat their car and not think about it for years, C1 is the right tool.
Gyeon Q2 Mohs EVO uses a system approach. Standalone it rates 2–3 years. The real play is topping it with Gyeon Q2M Cure every six months — a SiO2 maintenance spray that extends and refreshes the base coat — effectively putting you in the 4–5 year range. The Gyeon system is one of the most thoughtfully designed in the category.
CarPro Cquartz UK 3.0 is rated 2+ years, layerable to approximately 4 years with two coats. Predictable, honest performance.
Gloss & Finish
Cquartz UK 3.0 delivers the most dramatic wet-look gloss on dark paint. It photographs best and generates the most comments at car shows. Nothing beats fresh Cquartz on a black car for sheer visual impact.
Gyeon Q2 Mohs EVO is close behind — very high gloss with a warmer, crisper reflection character. On black metallics the defined reflections are exceptional. The 50ml kit is a smart choice for larger vehicles or if you want enough product to do a second coat without ordering again.
Gtechniq C1 leans toward depth and clarity over raw wet-look. On lighter colors, metallics, and complex paint it often looks the best of the three. On solid dark paint where maximum reflectivity is the goal, Cquartz and Mohs EVO both edge it.
DIY vs. Professional Use
First coating, doing it yourself? CarPro Cquartz UK 3.0. Most forgiving application, dramatic gloss, proven durability.
Enthusiast who enjoys maintaining their car and wants a system? Gyeon Q2 Mohs EVO as the base coat, topped up with Gyeon Q2M Cure twice a year. The most satisfying long-term coating ownership experience in the category, and the 50ml kit gives you enough product to do larger vehicles or true two-coat coverage.
Professional detailer coating customer vehicles? Gtechniq C1 Crystal Lacquer — the most defensible product to put your name on for longevity. For clients wanting absolute maximum protection, step up to Gtechniq Crystal Serum Light.
Our Verdict
DIY first coating: CarPro Cquartz UK 3.0 — forgiving application, dramatic gloss, proven 2–4 year protection.
Enthusiast wanting a long-term system: Gyeon Q2 Mohs EVO — available in 30ml or 50ml, pairs with Q2M Cure for a 4–5 year protection system.
Professional detailers: Gtechniq C1 Crystal Lacquer — five-year longevity, layerable, and the most defensible product in the category.
Shop CarPro Cquartz UK 3.0 → Shop Gyeon Q2 Mohs EVO → Shop Gtechniq C1 Crystal Lacquer →