Name: Domestic Motor Vehicle Brake Fluid HZY4
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Domestic Motor Vehicle Brake Fluid HZY4

Meets or exceeds China National Standard GB 12981-2012 for HZY4 brake fluid classification.
High dry boiling point (≥230 °C) and wet boiling point (≥155 °C) to resist vapor lock under severe braking conditions.
Excellent low-temperature fluidity down to –40 °C, ensuring reliable pedal response in cold climates.
Compatible with EPDM, NBR, and other common brake system elastomers without swelling or degradation.
Hygroscopic control formulation with oxidation inhibitors to extend service life and maintain consistent performance.

Typical Applications Of Domestic Motor Vehicle Brake Fluid HZY4

Passenger cars and light-duty vehicles manufactured in China and compliant with domestic OEM specifications.
Domestic commercial vehicles including vans, pickups, and small trucks requiring DOT 3–equivalent performance.
Aftermarket brake system maintenance and fluid replacement for certified service centers.
Original Equipment Manufacturer (OEM) fill and top-up applications for Chinese-brand automotive platforms.

Chemical Type	Glycol ether–based (borate ester-modified)
Product Form	Clear, amber liquid
Appearance	Homogeneous, transparent, free of sediment or haze
Dry Boiling Point (min)	230 °C (GB/T 21771–2008)
Wet Boiling Point (min, 3.5% water)	155 °C (GB/T 21771–2008)
Viscosity at –40 °C (max)	1500 mm²/s (GB/T 12579–2002)
pH Value (20 °C)	7.0–8.5
Corrosion Resistance (120 h, 100 °C)	No visible corrosion on steel, aluminum, copper, and brass test pieces

Get in Touch with ERICW

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Contact With Us:

E-mail: wangxingqiang@ericwchem.com
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15921782326
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China