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Table 1 Summary of the analysis (see “Instrumentation”) of samples from Addendum (Tate T02394) derived from analytical campaigns carried out in 2013, and 2016–2018

From: Facilitating the conservation treatment of Eva Hesse’s Addendum through practice-based research, including a comparative evaluation of novel cleaning systems

SectionSampleCross sectionSEM/EDXaFTIR (transmission)PyGCMS (Polymeric components)Inferred composition
Binding mediaPigmentOtherb
Wooden boxTransparent layer at the intersection between boardsPVAccWooden boards are joined together with neat polyvinyl acetate adhesive
Wooden boxUnpainted pulp forming the papier mâchéCellulose (from wood)
PVAcc
Gypsum (CaSO4)Unpigmented pulp, mixed with polyvinyl acetate adhesive and gypsum
Painted/coated papier mâchéGrey paint with transparent coatingOne thick layer of dark grey paint, with a highly thinned lighter grey layer on top. An unpigmented, non-fluorescent coating is also presentTi, Zn, Si, Al, Ca, Fep(EA-MMA)d
PVAcc
Titanium dioxide (TiO2)
Possible carbon black
Calcium sulphate tetrahydrate (CaSO4.4H2O)Acetic acid
Benzene
EAe
MMAf
DEPg
EA/MMA dominated pyrogram.
p(EA-MMA)c acrylic dispersion with titanium white (PW6), some zinc oxide and Mars black pigments (PBk11), gypsum.
Unpigmented polyvinyl acetate coating
Painted/coated ropesGrey paint with transparent coating and glossy, sticky patchOne thick layer of light grey paint. On top, there are two additional layers: an unpigmented and non-fluorescent coating, and an unpigmented, fluorescent layerTi, Zn, Si, Al, Ca, Fep(EA-MMA)d
PVAcc
p(nBA-MMA)h
Titanium dioxide (TiO2)Calcium sulphate tetrahydrate
(CaSO4.4H2O)
Acetic acid
Benzene
EAe
MMAf
BAi
DEPg
nBA/MMA dominated pyrogram.
p(EA-MMA)c acrylic dispersion with titanium white (PW6), some zinc oxide and Mars black pigments (PBk11), gypsum.
Unpigmented polyvinyl acetate, and unpigmented p(nBA-MMA) coatings
  1. aElemental composition [major element(s)] only; badditives, extenders; cpolyvinyl acetate; dpoly(ethyl acrylate-methyl methacrylate); eethyl acrylate; fmethyl methacrylate; gdiethyl phthalate; hpoly(butyl acrylate-methyl methacrylate); ibutyl acrylate