SINOPEC DOT 4/HZY4 Synthetic Brake Fluid

• Type: Brake Fluid
• Source: Syntholube
• Composition: Base oil & additive
• Property: Protective Lubricant
• Shape: Liquid
• Application: Automotive Lubricant
• Model NO.: DOT4
• FMVSS No.116: DOT 4
• ISO 4925: Class 4
• Transport Package: 200L, 1L
• Specification: GB 12981 HZY4
• Trademark: SINOPEC
• Origin: China
• HS Code: 3403990000
• Production Capacity: 20000/Month

Product Description

SINOPEC DOT 4 Synthetic Brake Fluid is formulated using a blend of synthetic glycol ether and borate ester with selected additives. It meets the requirements of the DOT 4 specification to give excellent brake and clutch performance, avoiding the problems of vapour lock and brake fade.
 

Applications

SINOPEC DOT 4 Synthetic Brake Fluid is suitable for use in:

• Hydraulic disc, drum and anti-skid brakes and clutch systems of all passenger cars and commercial vehicles that require a DOT 4 or DOT 3 performance synthetic fluid.

Caution: do not use where a mineral oil-based fluid or a DOT 5 silicone-based fluid is required.
 

Features and benefits

• High wet and dry equilibrium reflux boiling point (ERBP) minimises vapour formation on braking at  high-speed or high-load conditions and maintains the fluid's hydraulic properties, thus ensuring good braking performance.
• Borate ester in the formulation acts as a water scavenger and helps to maintain the ERBP during service, so maintaining the quality of braking performance as the fluid ages.
• Good fluidity, even at low temperatures, enables optimum braking performance.
• A buffered alkaline pH protects iron and steel-containing system components from acidic corrosion, ensuring long component life.
• Selected corrosion inhibitors protect aluminium, copper, zinc and tin-containing system components from corrosion, ensuring long life.
• Good compatibility with common seal materials used in braking systems minimises fluid leakage and reduces component wear caused by inadequate lubrication, ensuring good braking performance.
• Excellent thermal and oxidation stability properties prevent fluid breakdown and deposit formation, maximising fluid life and performance.
• Fully compatible with other brake fluids that meet the DOT 3 or DOT 4 specifications also compatible with DOT 5.1.

 

Typical data

Sinopec DOT 4 Synthetic Brake Fluid
Equilibrium reflux boiling point (ERBP), °C, ISO 4925	260
Wet ERBP, °C, ISO 4925	165
Kinematic viscosity, ISO 4925
cSt @ -40°C	1120
cSt @ 100°C	2.14
pH, ISO 4925	8.9
Corrosion, 120 h @ 100°C, mass change of metal strips, mg/cm^2, ISO 4925
tinned iron	0.00
steel	0.00
aluminium	0.00
cast iron	0.00
brass	0.09
copper	0.10
Effect on rubber, ISO 4925
styrene butadiene rubber (SBR) @ 70°C
cup diameter increase, mm	0.52
hardness change, IRHD	4
styrene butadiene rubber (SBR) @ 120°C
cup diameter increase, mm	0.67
hardness change, IRHD	6
ethylene propylene diene monomer (EPDM) @ 70°C
volume change, %	1.44
hardness change, IRHD	1
ethylene propylene diene monomer (EPDM) @ 120°C
volume change, %	2.35
hardness change, IRHD	3

These data are given as an indication of typical values and not as exact specifications.