Halo GT
Win every corner.
Brake Later. Release Faster. Accelerate earlier. Every Lap.
Halo GT is the ultimate DOT 4 racing brake fluid, fully compliant and optimized for the latest racing ABS systems. Engineered for ultra-fast response, thermal stability, and consistent pedal feel under the most demanding race conditions.
Derived from P1
Proven under extreme conditions. Built on Halo P1 chemistry, developed for the highest demands of motorsport.
Designed for GT racing
The ultimate in DOT 4 racing brake fluid, fully compliant and optimized for use with the latest racing ABS systems.
Ultra low viscosity
Faster system response for immediate feedback and precise control.
Fade Resistant Technology™
Performance that lasts. Maintains consistent pedal feel under repeated heat cycles with minimal fade as temperatures rise.
Corner focused
Control where it matters most. Optimised for braking zones, release precision, and clean transition back to throttle.
Sharper response. Better control. Faster exits from start to finish.
- Faster hydraulic response under load
- Greater stability through repeated braking cycles
- Quicker piston release for reduced drag
- More precise brake modulation
- Reduced thermal stress in extreme conditions
- Earlier throttle application on corner exit
Speed of Response. Speed on Track.
Modern Braking Systems demand instant response. Halo GT’s ultra-low viscosity allows the brake system to respond faster, improving communication between driver and car.
Faster pressure build-up. Cleaner release. Greater control at the limit.
Brake later. Release faster. Accelerate earlier.
Most races are won in the corner.
Anyone can be fast on the straight. But cornering takes skill. Performance is defined under braking, through release, and on exit. Halo GT is engineered for these moments. Giving drivers the confidence to brake faster, carry speed through the corner, and accelerate earlier.
And continue to do that consistently, lap after lap.
The braking point
The release phase
The first application of the throttle
For GT drivers who understand Performance.
Not for Everyone. Built for those who demand more.
Also suitable for Semi-Pro, Club Racing and Trackday performance drivers.
Technical Specification.
- 336°C dry boiling point
- Ultra-low viscosity of 1350 cSt
Designed to maintain consistent performance under heat and repeated load, with full data available for detailed evaluation.
Built & Engineered by the world leader in racing brake fluid.
Halo is backed by Orthene’s 50 years of brake fluid innovation, motorsport experience and specialist manufacturing expertise.
50+ Years
Over five decades of specialist expertise developing advanced brake fluid technology for automotive, motorsport, and industrial applications.
DOT 4 Founders
Built on the legacy of Alan Ker, the pioneer behind modern DOT 4 brake fluid development.
Continuous Development
Orthene continuously develops and refines formulations to stay ahead of evolving vehicle technology, performance demands, and future braking systems.
Trusted Partner
Producing an estimated 80% of racing brake fluid globally, Orthene is trusted across the industry for its expertise, quality, and deep understanding of performance braking.
Halo Exclusivity
The Halo range represents Orthene’s most advanced brake fluid technology, developed exclusively for Halo and engineered without compromise.
Full Circle
Returning to our roots in performance brake fluid innovation, Halo GT reconnects Orthene’s historic legacy with newly re-engineered technology built for the modern era.
Upgrade your braking performance.
Halo GT transforms brake fluid from a consumable into a competitive advantage.
Brake later. Stay in control. Exit faster.