EPDM rubber is a material which is now used extensively in vehicle brake and clutch systems. However, it requires proper protection and will swell if it comes into contact with mineral oil, something that can cause big problems for mechanics. 

Scott Irwin, Head of Technical Training at TMD Friction, says Textar’s new Hydra Tec works in harmony with the clutch and braking system and is compatible with materials such as EPDM rubber. He comments, “Rubber brake seals maintaining pressure and are imperative to ensuring driver safety. If these seals fail, brake fluid could leak into the system and compromise the pressure capacity of the brakes, significantly decreasing the ability to stop the car. The seals also prevent any potential pollutants entering the system because if brake fluid becomes contaminated, it is extremely dangerous, lowering the boiling temperature of the fluid and the reaction of the vehicle when the brakes are applied.” 

Scott says Hydra Tec has been specially created for hydraulic components in brake and clutch systems. It is also ideal for lubricating cylinder working surfaces, pistons and sealing elements, making it overall easier to install hydraulic brake components in the caliper. Crucially Hyrda Tec is compatible with EPDM rubber and protects working surfaces and other metallic components against corrosion thanks to its water-repellent properties. The formula prevents brake seizure when utilised correctly, keeping all the brake components protected and moving as required.

In his experience Scott believes that all too often mechanics will turn to a multipurpose grease when working on brake systems. He comments, “The problem is, a lot of these products contain mineral oil, or an unspecified petroleum-based oil which negatively effects the integrity of the rubber, causing it to swell or crack over time. The metal content of lubricants must also be considered and how this can affect run out, electronics, premature wear and more. Similarly, within the clutch and brake system, a multipurpose WD (water dispersant) spray grease is often the go-to, but this may not be the more efficient or effective product when taking the ingredients into account.” He adds, “It is imperative that technicians take the time to research the best lubricants on the market. Mineral oil substitutes can cause seals to misshape very easily, leading to a host of other issues within the braking system.