Rain Repellent (Glass Coating)
Rain repellent is a coating applied to car glass that makes water bead up and roll away, improving visibility in rain.
What is Rain Repellent (Glass Coating)?
At speed, droplets blow off the windscreen. It is often used on side windows and mirrors. The effect lasts weeks to months. Some windscreens come with a factory hydrophobic coating.
How it works
A hydrophobic layer reduces the surface energy of the glass, so water forms beads instead of a film.
Why it matters for your car
On some cars it can cause wiper judder or chatter. Clean the glass thoroughly before applying.
Other terms
- ADAS Calibration
- Battery Electric Vehicle (BEV)
- Battery Warning Light (Charging Light)
- Chip Tuning (Engine Remapping)
- Coolant Expansion Tank
- Crossover
- Fuel Pressure Regulator
- Gear Shift Cable (Linkage)
- Head Gasket
- Injector Leak-off Test
- Jump-start
- Low Emission Zone (LEZ)
- Mud Flaps (Splash Guards)
- OBD Port (Diagnostic Connector)
- Peak Charging Power (Max kW)
- Phantom Drain (Vampire Drain)
- Sodium-Ion Battery
- Wasted Spark Ignition
- Wh/km And kWh/100 Km (EV Consumption)
- WMI (World Manufacturer Identifier)