Chemical stains contamination, it differs from oxide layers on metals, thus poses unique challenges in laser cleaning applications. Formation patterns of this contamination, they arise from residue buildup during chemical exposure, and create irregular, adherent films on surfaces like ceramics and polymers. On metals, stains exhibit patchy distribution, while on glass, they form diffuse layers that penetrate deeply. Removal process, it demands precise laser parameters to avoid substrate damage, so efficiency varies by material. For instance, polymer surfaces show improved cleanliness after treatment, yet residues still persist in crevices due to thermal sensitivity. This contamination, it resists ablation because of its organic composition, and thus requires multi-pass scanning for complete elimination. Challenges emerge from uneven vaporization, leading to potential re-deposition on adjacent areas. Analysis confirms that material-specific behaviors dictate success, with ceramics yielding smoother results compared to flexible substrates.
Surface shows contamination from chemical stains / acid etching affecting material appearance and properties.
Post-cleaning reveals restored surface with chemical stains / acid etching successfully removed through precise laser ablation.
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