Use this Chassis Protect Sheet to provide extra durabiltiy and protection for your chassis, whether you’re racing off-road or running for fun with your touring car! The clear self-adhesive PTFE plastic is very slick to provide low friction if your car bottoms out or slides over bumps. The sheet is also thick to keep scratches and nicks off any graphite or aluminium main chassis.
Provided in a large self-adhesive sheet, simple peel and stick, then use a hobby knife to cut around the edges of your chassis and any openings for motor, cooling, etc.
Source : Hot Bodies