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Heritage Science
Fig. 3 | Heritage Science

Fig. 3

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

Fig. 3

BSE micrographs of the plaster surface models after the cleaning trials with PE-PAM15 SAGs 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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