How do plastic outdoor chairs resist damage from sunscreen or insect repellents?

Plastic outdoor chairs are designed to withstand exposure to sunscreen and insect repellents through several key features. High-quality plastic materials, such as polyethylene or polypropylene, are naturally resistant to chemical degradation. Many manufacturers also apply UV-resistant coatings to prevent discoloration and weakening caused by sunblock ingredients like oxybenzone. For insect repellent protection, the non-porous surface of plastic prevents DEET and other repellents from penetrating and breaking down the material. Additionally, textured finishes help minimize visible stains from oily products. Regular cleaning with mild soap and water further maintains the chair's integrity against these common outdoor chemicals.