What additives are used to enhance the UV resistance of polyethylene outdoor chairs?

Polyethylene outdoor chairs are popular for their durability and versatility, but prolonged exposure to UV radiation can cause fading, brittleness, and degradation. To combat this, manufacturers incorporate specific additives to enhance UV resistance. The most common additives include UV stabilizers such as hindered amine light stabilizers (HALS) and UV absorbers like benzotriazoles. These additives work by absorbing or scattering UV radiation, preventing it from breaking down the polymer chains in polyethylene. Additionally, carbon black and other pigments are often added to provide further protection by blocking UV rays. These enhancements ensure that polyethylene outdoor chairs remain durable, vibrant, and long-lasting, even under harsh sunlight. By understanding the role of these additives, consumers can make informed choices when selecting outdoor furniture for their spaces.