Automotive Lubricants
TECHNOFLUID BRAKE FLUID
Brake Fluid
(DOT 3, DOT 4 & DOT 5)TECHNOFLUID Brake Fluid is a high-performance hydraulic brake fluid range developed for reliable and safe operation of automotive and hydraulic braking systems.
Available in DOT 3, DOT 4 and DOT 5 grades to suit the requirements specified by vehicle manufacturers.
DOT 3 and DOT 4 are glycol-ether based fluids with high boiling points, excellent corrosion protection and good compatibility with brake-system seals and hoses.
DOT 5 is a silicone-based brake fluid intended only for systems specifically designed for silicone brake fluid, and must not be mixed with glycol-based DOT 3 / DOT 4 fluids.
Grades Available
DOT 3 — glycol ether; dry boiling point >230°C, wet >145°C.
DOT 4 — glycol ether / borate ester; dry boiling point ≥250°C, wet ≥160°C.
DOT 5 — silicone; dry boiling point ≥260°C, wet ≥180°C. Not to be mixed with DOT 3 or DOT 4.
Key Benefits
High dry and wet boiling points for consistent pedal feel under heavy braking.
Excellent corrosion protection for brake-system components.
Good compatibility with commonly used brake seals and hoses.
Stable low-temperature viscosity for reliable cold-start braking.
Meets FMVSS 116 performance requirements for the respective grade.
Applications
Hydraulic disc and drum braking systems.
Passenger cars, commercial vehicles and two-wheelers.
Clutch hydraulic systems where a compatible brake fluid is specified.
Systems specifying DOT 3, DOT 4 or DOT 5 to FMVSS 116 / SAE J1703 / J1704.
Industry Performance Characteristics
High boiling point
Excellent corrosion protection
Good seal compatibility
Stable low-temperature viscosity
Meets FMVSS 116
Specifications
| Property | Test Method | DOT 3 | DOT 4 | DOT 5 |
|---|---|---|---|---|
| Product Type | — | Glycol-Ether Brake Fluid | Glycol-Ether Brake Fluid | Silicone Brake Fluid |
| Appearance | Visual | Clear to Amber | Clear to Amber | Clear / Translucent |
| Density @ 20°C | ASTM D4052 | 1.04–1.07 g/cm³ | 1.04–1.08 g/cm³ | 0.96–1.00 g/cm³ |
| Dry Equilibrium Reflux Boiling Point | FMVSS 116 / SAE J1703 / J1704 | >230°C | ≥250°C | ≥260°C |
| Wet Equilibrium Reflux Boiling Point | FMVSS 116 / SAE J1703 / J1704 | >145°C | ≥160°C | ≥180°C |
| Kinematic Viscosity @ -40°C | FMVSS 116 | ≤1500 cSt | ≤1500 cSt | ≤900 cSt |
| Kinematic Viscosity @ 100°C | FMVSS 116 | ≥1.5 cSt | ≥1.5 cSt | ≥1.5 cSt |
| pH Value | FMVSS 116 | 7.0–11.5 | 7.0–11.5 | 7.0–11.0 |
| Water Content | ASTM D1123 / equivalent | ≤0.20% | ≤0.20% | ≤0.20% |
| Base Fluid Type | — | Glycol Ether | Glycol Ether / Borate Ester | Silicone |
| Performance Level | — | DOT 3 / FMVSS 116 | DOT 4 / FMVSS 116 | DOT 5 / FMVSS 116 |