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Heritage Science
Fig. 1 | Heritage Science

Fig. 1

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

Fig. 1

BSE micrographs of the plaster surface models (A) after ageing without soils and (B) after soiling and ageing of (i) uncoated plaster (uc), and plaster coated with (ii) cold pressed linseed oil (CL), (iii) boiled linseed oil (BL), (iv) 6 wt% shellac in IMS (SR6), (v) 18 wt% shellac in IMS (SR18), (vi) barite with Ca(HO2) admixture (BC), (vii) neat barite (BA), and (viii) beeswax (WX)

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