All types of hydraulic actuated brake and clutch systems requiring a non-silicone synthetic fluid.
Specially designed to resist to high temperature of racing actuated brake (steel or carbon) and clutch
systems.
Exceeds DOT 5.1 and DOT 3 standards also, except for viscosity at -40°C (-40°F).
PERFORMANCE
STANDARDS : FMVSS 116 DOT 4 / SAE J 1703 / ISO 4925
Extreme thermal resistance and stability :
The very high boiling point (312°C / 594°F), superior to conventional DOT 5.1 non silicone base /
DOT 5 silicone base fluids (260°C / 500°F mini) and DOT 4 (230°C / 446°F mini) enables an effective
brake even under extreme conditions.
Efficient when rainy :
The very high wet boiling point (204°C / 399°F) superior to conventional DOT 5.1 non-silicone base
fluid (180°C / 356°F mini) and DOT 4 (155°C / 311°F mini) enables to keep an efficient brake system
when rainy. Indeed, DOT 3, DOT 4 and DOT 5.1 brake fluids have the property to absorb humidity in
the air, which reduces their boiling points and increases the risk to get to “vapor lock” phenomena.
The wet boiling point is measured by humidifying the product with about 3.5 % of water.
RECOMMENDATIONS
Avoid mixing with polyglycols based brake fluid with lower performances.
Do not mix with silicone (DOT 5 silicone base) or mineral base fluids (LHM).
Store brake fluid in its original container, tightly closed to prevent absorption of moisture.
Aggressive chemical product if contact with hands, paint or varnish.
If skin contact, rinse thoroughly with water.
PROPERTIES
100% synthetic fluid, polyglycol bases.
Color Amber
Dry boiling point 312 °C / 594 °F
Wet boiling point 204 °C / 399 °F
Viscosity at -40°C (-40°F) 1750 mm²/s
Viscosity at 100°C (212°F) 2.5 mm²/s
MOTUL RBF 600 Factory Line
Specification limits
TEST Unit DOT 3 DOT 4 DOT 5.1 RFB 600
Dry boiling point °C >205 >230 >260 312 (594°F)
Wet boiling point °C >140 >155 >180 204 (399°F)
Viscosity at -40°C (-40°F) mm²/s <1500 <1800 <900 1750
Viscosity at 100°C (212 °F) mm²/s >1.5 2.5
pH 7-11.5 7.4
Effect on rubber SBR (Styrene-butadiene)
Volume change at 70°C (70 hours) mm 0.15-1.4 0.76
Softening (IRHD) 10 max 4.0
Disintegration no no
Volume change at 120°C (70 hours) mm 0.15-1.4 1.05
Softening (IRHD) 15 max 7
Disintegration no no
Evaporation
Loss at 100°C weight % 80% max 50
Fluidity and appearance at low temperature
Appearance at -40°C clear OK
Flow time s 10 max OK
Appearance at -50°C clear OK
Flow time s 35 max OK
Water tolerance
Appearance at -40°C clear OK
Flow time s 10 max OK
Appearance at +60°C clear OK
Sedimentation % 0.15 max OK
Anti-corrosion properties : Weight variation
Tinned iron mg/cm2 0.2 max 0.01
Steel mg/cm2 0.2 max 0.02
Aluminium mg/cm2 0.1 max 0.03
Cast mg/cm2 0.2 max 0.05
Tin mg/cm2 0.4 max 0.09
Copper mg/cm2 0.4 max 0.04