How to Clean Plastic on a Convertible Top
- 1). Rinse the soft top gently with water to dislodge dirt and debris. Dirt and debris can scratch your plastic windows when you start washing; rinse away as much as possible, as gently as possible.
- 2). Apply soft top cleaner designed for use on plastic windows. Read the directions on the cleaner's label before using it to determine how much of it to apply to the cloth and how long to let it sit.
- 3). Clean the windows thoroughly inside and out, following the product instructions. Rinse the product off the windows, then dry them with a soft cloth.
Source...