Description

A next-generation brake fluid is born

Halo P1 is the purest and therefore, highest quality brake fluid ever made, designed specifically for top-tier professional motorsport, driving fast and braking last. Incompressible over the widest temperature range and boasting a stable pedal feel from the first lap to the last, Halo boosts driver confidence for faster times and podium finishes.

The Halo P1 by Orthene is a next-generation professional motorsport brake fluid engineered to deliver maximum thermal stability, ultra-low compressibility, and consistent pedal feel under the most extreme racing conditions. Developed by Orthene—one of the world’s leading brake fluid specialists with nearly five decades of expertise—Halo P1 represents the pinnacle of racing brake fluid technology, designed specifically for top-tier motorsport applications.

Formulated using a highly purified methyl borate ester base, Halo P1 achieves exceptional polarity, which significantly reduces compressibility and maintains precise, consistent braking response across a wide temperature range. Its industry-leading dry boiling point of 341°C (646°F) ensures outstanding resistance to brake fade, even under prolonged high-load conditions such as endurance racing and high-speed circuit competition.

Engineered with proprietary Fade Resistant Technology™, Halo P1 delivers stable hydraulic performance from the first lap to the final stint, minimizing pedal travel variation and improving driver confidence. Advanced lubricity additives further protect braking system components at elevated temperatures, ensuring compatibility with modern systems including ABS and high-performance calipers. 

Product Features & Benefits

• Ultra-High Boiling Point (341°C / 646°F): Exceptional resistance to vapor lock and brake fade in extreme conditions.
• Fade Resistant Technology™: Maintains consistent pedal feel and braking performance across full race distances.
• Low Compressibility Formula: High polarity chemistry ensures precise braking modulation and driver feedback.
• Advanced Borate Ester Composition: Highly purified formulation improves stability and performance at high temperatures.
• High Lubricity Additives: Protects internal brake components and supports modern braking systems including ABS.
• Track-Proven Performance: Widely adopted across professional motorsport categories with proven race-winning results. 

48 years of brake fluid excellence

Halo is shifting the perception of brake fluid from a mere commodity to a performance-enhancing superfluid.

The culmination of nearly 50 years of chemical engineering expertise and a series of pioneering innovations, Halo is the pinnacle of racing brake fluid available today.

What makes Halo P1 unique?

Halo P1 gives you the confidence to race as hard as you can from the first lap to the last.

Purity                                                                                             

Crafted using the purest methyl borate ester which goes

through a proprietary multi- step purification process before

beginning the reaction process. Impurities degrade

performance, reduce boiling point, and create instability at

high temperatures. This is why we remove them.

Highest boiling point

The purity of Halo P1 allows it to reach an extremely high

boiling point of 646°F / 341°C. This means that Halo P1 is

able to achieve and maintain a consistent performance up to

the highest racing temperatures.

Extremely low compressibility

Featuring Fade Resistant Technology™, Halo P1 is a highly

polar fluid. Polar molecules don't like to occupy the same

space, and so resist being compressed. This makes Halo P1

extremely incompressible across a wide temperature range

which gives a very stable pedal feel throughout the race.

Lubricity

Lubricity at high temperatures protects and maintains the

brake system at high temperatures. Halo P1 has special

additives reacted into the backbone of the product to ensure

the highest lubricity even at high temperature. This is

particularly important for ABS systems and for consistent

caliper roll-back.