Where should WD40 not be sprayed?

[LaCollin]

WD40 should not be sprayed on rubber, plastic, or wax areas of a car. WD40, known as a moisture-displacing and rust-preventing lubricant, has penetrating properties that can thoroughly remove oil stains, dirt, dust, and other residues adhering to metal surfaces, without damaging materials like paint, fiber, plastic, or nylon on metal surfaces. The functions of WD40 include: 1. Completely removing stubborn stains adhered to metal surfaces; 2. Removing moisture and water, quickly drying electronic systems to prevent short circuits caused by humidity; 3. Removing rust that binds metals, freeing stuck, frozen, or rusted metal parts; 4. Containing anti-corrosion components to protect metal surfaces from moisture and other corrosive factors.