A clean windscreen and side windows are essential for safe driving. Autoglym provides a super spray-on cleaner for rapid window cleaning - both inside and out - to produce a crystal clear, smear free finish on glass and plastic windows. Autoglym Fast Glass is free of abrasives, silicones and waxes and leaves no residue. As it contains no abrasives, it is especially recommended for use on acrylic and plastic windows where an abrasive cleaner could etch and haze the surface with frequent use.