What are the effects of prolonged exposure to tree sap on metal outdoor chairs?
Prolonged exposure to tree sap can have several negative effects on metal outdoor chairs. Over time, the sticky residue from sap can attract dirt and debris, leading to surface staining and a dull appearance. More critically, the acidic components in some tree saps can accelerate corrosion, especially on untreated or poorly coated metals. This may result in rust formation, weakening the structural integrity of the chairs. To mitigate these effects, regular cleaning with mild soap and water is recommended, along with applying protective coatings like wax or specialized metal sealants. For long-term care, consider relocating chairs away from overhanging trees or using covers when not in use.