UV-chalking-contamination arises from prolonged ultraviolet exposure on aged surfaces. This contamination, it develops unique powdery patterns, where fine chalk-like residues accumulate unevenly and adhere to substrates. Formation follows natural aging, material degrades gradually and thus forms brittle layers that scatter light.
Removal challenges emerge in laser cleaning applications. Contamination resists ablation due to its fragile yet sticky nature, so precise energy control becomes essential to avoid substrate damage. Material-specific behaviors vary; on polymers, residues detach readily and thus clean with minimal passes, while on metals, they bond strongly and so demand adjusted pulse durations for effective stripping.
Following laser treatment, surface regains uniformity, contamination already diminishes, yet traces still linger in textured zones. This process confirms efficiency through targeted removal, challenges persist from regional patterns.
Surface shows contamination from uv photodegradation / polymer chalking affecting material appearance and properties.
Post-cleaning reveals restored surface with uv photodegradation / polymer chalking successfully removed through precise laser ablation.
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