Cleaning testing of nineteenth-century plaster surface models with thin polyacrylamide-based gel layers attached to flexible polyethylene films

Abstract This paper explores the cleaning efficacy of polyethylene-supported 15-min photo-crosslinked poly (acrylamide-co-benzophenone) surface-attached gels (SAGs) on gypsum plaster surface models inspired by nineteenth-century casts. Cleaning tests were performed with and without organic inorganic coatings, which had been exposed to accelerated ageing heat, humidity, light after artificial soiling. The specific types SAG systems selected based their water loading dehydration capacities. SAGs loaded customized solutions applied for one minute. was evaluated visible reflectance, UV fluorescence photography, scanning electron microscopy, colorimetry, UV/Vis spectrophotometry, glossimetry, high resolution 3D attenuated total reflection Fourier transform infrared spectroscopy 2D imaging. provided fast minimal wetting substrates, prevented excessive liquid spreading allowed effective contact soiled surface. A striking removal soils from observed, suggests convenient application historical objects.