Degraded Polymer Deposits Contamination

Plastic-residue contamination, it manifests as melted, degraded, or oxidized layers from heat exposure or UV degradation, which distinguishes itself from inorganic rusts by its viscoelastic, non-brittle nature that clings irregularly. On metals such as steel and aluminum, the residue adheres tenaciously, influenced from surface porosity, while on glass it spreads thinly yet persistently, leading to challenges in removal due to its thermal sensitivity and potential for re-melting during cleaning. Laser cleaning proves effective, as the process vaporizes the residue selectively, that demonstrates preservation of the substrate integrity without mechanical abrasion.