Tetraschutz TSH500 Rust Protection Aerosol is designed for long-lasting underbody and chassis protection, helping prevent corrosion on vehicles exposed to harsh road conditions, winter salt, and moisture. Supplied in a convenient 500ml aerosol, it allows precise application without the need for bulky spray equipment — perfect for both professional workshops and DIY users who don’t fancy wrestling with a compressor. Once applied, the coating dries to a tough, flexible protective layer that resists stone chips, water ingress, and corrosion spread. It adheres well to prepared metal surfaces and is ideal for floor pans, wheel arches, sills, subframes, and chassis components. Key benefits Forms a robust anti-corrosion barrier Helps protect against rust, salt, moisture, and road debris Aerosol format for easy, controlled application Flexible finish resists cracking and chipping Ideal for vehicle underbodies, arches, and exposed metal areas Application tips (learned the hard way by many mechanics) Clean and dry the surface thoroughly before application Remove loose rust and debris for best adhesion Apply in thin, even coats — flooding it won’t make it better Allow adequate drying time before road use