GAFLE

When customers ask about brake fluid classification, the first and most important category you need to introduce is glycol-based brake fluid. DOT3, DOT4, DOT5.1 and Gafle Racing325 all belong to the glycol family. Understanding its chemical characteristics helps you distinguish it from silicone DOT5 brake fluid and avoid costly cross-contamination mistakes.

Glycol ether compounds naturally absorb water vapor from the air. This is both a designed feature and its main limitation. When tiny amounts of moisture enter the brake system through rubber hoses and seals, glycol blends evenly with water. Instead of forming separate water droplets that cause localized corrosion, the water spreads uniformly throughout the fluid. However, continuous moisture absorption will reduce boiling point gradually, which is the reason regular brake fluid replacement is required.

Most factory brake systems are fitted with EPDM rubber seals, hoses and cups. Glycol-based brake fluid is formulated to work with these rubber materials, without causing excessive swelling, hardening or cracking. This is the primary reason OEM manufacturers choose glycol brake fluid for mass production vehicles. In contrast, silicone DOT5 brake fluid is not compatible with many older rubber components and cannot be mixed with glycol products.

Standard DOT3 glycol brake fluid fits older passenger vehicles with low braking load. DOT4 glycol brake fluid is the mainstream choice for modern sedans and SUVs. High-performance glycol products such as Gafle Racing325 are engineered for track racing, delivering outstanding thermal stability under extreme braking heat. All glycol brake fluid from Gafle complies with FMVSS 116 standards and passes strict compatibility and corrosion testing.

Glycol brake fluid can damage painted vehicle surfaces. Any spillage on car paint must be washed away immediately with clean water. For distributors, remind your retail clients of this important safety tip. Gafle supplies glycol brake fluid in multiple package sizes for retail and bulk wholesale. We can provide MSDS, TDS and certification documents for your import and sales.