Which components need protection when using paint stripper on an aircraft?

When using paint stripper on an aircraft, it is crucial to protect windshields and plastics because these materials are particularly sensitive to harsh chemicals that are commonly found in paint strippers. The chemical composition of paint strippers can cause clouding, crazing, or complete degradation of plastic and glass materials, which are essential for visibility and safety in an aircraft. Protecting these components is vital to maintain the structural integrity and safety of the aircraft.

While other components like metal surfaces, aluminum frames, and steel components also require attention when applying paint strippers, they are generally more resilient to chemical exposure compared to plastics and windshields. Metal surfaces might require protection against corrosion after stripping, and aluminum and steel can usually withstand the chemicals without damage as long as proper precautions are taken. Therefore, the primary concern lies with windshields and plastics, which makes this the correct response to the question.