Crystal Serum Ultra
The absolute pinnacle of paint protection. Crystal Serum Ultra is the best ceramic coating in the world — delivering matchless levels of gloss, surface slickness, swirl resistance, and chemical resistance, backed by a 9-year guarantee.
Available exclusively through Gtechniq Accredited Detailers, Crystal Serum Ultra features a revolutionary dual-layer technology with a hard 10H top coat over a flexible 7H base, making it uniquely resistant to both swirls and extreme temperature changes — from -40°C to +250°C.
Why Crystal Serum Ultra?
Crystal Serum Ultra is the best paint protection you can get. It keeps your car looking glossy and new, prolonging the life of your paintwork's perfect finish. The key to its performance is the introduction of a revolutionary 7nm nanoparticle alongside an existing 20nm nanoparticle, with an increased ratio of crosslinkers that reinforce and thicken the top layer.
Matchless Gloss & Slickness
CSU delivers the highest gloss output and surface slickness available in any coating — standing head and shoulders above all other ceramic coatings on the market.
Superior Swirl & Chemical Resistance
The hard 10H top and softer 7H base layer offer improved swirl resistance over regular 9H coatings. CSU can withstand even the strongest wash chemicals and bird droppings.
Extreme Temperature Resistance
The flexible base and hard top layer make Crystal Serum Ultra resistant to extreme heat changes — from -40°C to +250°C — ideal for Melbourne's harsh climate.
Invisible Hydrophobic Barrier
CSU chemically bonds to each panel, creating a durable, invisible layer that causes water and contaminants to bead and roll off effortlessly.

"Crystal Serum Ultra is the world's best ceramic coating — professional exclusive, 9-year guarantee."
Product Overview
Technical Specifications
The science behind the world's best ceramic coating.
Dual-Layer Architecture
A hard 10H top layer sits over a flexible 7H base. This unique combination delivers superior swirl resistance compared to standard 9H coatings, while the flexible base absorbs impacts without cracking.
7nm Nanoparticle Technology
The introduction of a revolutionary 7nm nanoparticle alongside the existing 20nm nanoparticle and an increased ratio of crosslinkers reinforces and thickens the top layer — the key to Crystal Serum Ultra's performance advantage.
Extreme Climate Durability
Crystal Serum Ultra withstands temperature extremes from -40°C to +250°C without cracking or delaminating — perfect for Melbourne's harsh UV exposure and variable climate conditions.
How CSU Compares
| Feature | C1 Crystal Lacquer | Crystal Serum Light | Crystal Serum Ultra |
|---|---|---|---|
| Grade | Consumer | Pro-Grade | Pro+ Exclusive |
| Hardness | 9H | 9H | 10H (dual layer) |
| Guarantee | 5 Years | 5 Years | 9 Years |
| Gloss Level | High | Mirror-like | Matchless |
| Chemical Resistance | Good | Very High | Maximum |
| Temperature Range | Standard | High | -40°C to +250°C |
| Applicator Requirement | Authorized | Authorized | Accredited Only |
Professional Application
Crystal Serum Ultra is a specialist product that can only be applied by a Gtechniq Accredited Detailer.
Preparation Required
Before application, the paintwork is fully decontaminated, machine polished to remove any existing swirls or defects, and wiped down with panel wipe to ensure a clean, bare surface for optimal chemical bonding.
Can Be Overcoated
For maximum hydrophobic performance, Crystal Serum Ultra can be overcoated with Gtechniq EXO Ultra Durable Hydrophobic Coating or C2 Liquid Crystal — adding an extra layer of water-beading protection on top.
9-Year Guarantee
When applied by a Gtechniq Accredited Detailer, Crystal Serum Ultra comes with a full 9-year guarantee. Register your guarantee with Gtechniq to keep your protection fully covered.
Accredited Installers Only
The specialist nature of this product means it can only be applied by a Gtechniq Accredited Detailer. Our team is fully accredited, ensuring your vehicle receives the correct preparation and application for the full 9-year guarantee.
Frequently Asked Questions
Ready for the World's Best Ceramic Coating?
As a Gtechniq Accredited Installer, we apply Crystal Serum Ultra with the precision and expertise required for your full 9-year guarantee. Contact us for a free inspection and quote.
