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Figure 5: Impedance versus frequency plot for panel coated with LPS3 (TTG), two panels coated with Poligen ES91009 (KKG, KKH) and two bare Q panels variables so that materials which showed potential as protection systems for use in conservation could be compared on an equal basis and using standard techniques. When applied as recommended by the suppliers or as used in conservation practice, the thicknesses of protection systems selected from literature varied from less than 1 micron to 50 microns. Such variation in dry film thickness has great influence on the physical properties of the materials and does not permit equal comparison of test results. In the present research, all materials were applied so that they attained 20-25 microns by adjusting the number of applications or concentration of material applied. In addition, standard tests developed and used by the surface coatings industry are used to evaluate and compare all materials equally. Evaluation of the 18 protection systems which, based on literature, are most likely to meet the current project’s specifications of longevity, appearance, function, reversibility, stability and safety is not complete. The crosshatch adhesion test indicated that waxes showed poorer adhesion to Q panels and formed less cohesive films than corrosion inhibitors or solvent-based coatings. EIS suggested that poor adhesion of films over time could reduce the resistance to corrosion of treated panels until it resembled that of bare steel. The EIS results also suggested that coatings which are slightly mechanically damaged can still offer steel protection against corrosion as shown by LPS3. A simple test to compare hardness suggested that solvent based barrier coatings and waxes were resistant to abrasion from airborne particles and impact from handling while coatings containing corrosion inhibitors showed little resistance. The next stage of the project is to apply all the coatings to pre-corroded Q panels. Most industrial objects require conservation because they are corroded. Removing corrosion layers completely is 183
Figure 6: Panel coated with Poligen ES91009 after 24 hours in contact with 0.5M sodium chloride solution. The circle shows the area exposed to solution while in the electrochemical cell. Bare metal is visible where the panel has lifted time-consuming and expensive, if it is even possible. The performance of the selected protection systems on pre-corroded surfaces will be evaluated using the same procedures as those on treated bare panels. To examine longevity, treated bare and pre-corroded panels will be subject to both accelerated corrosion tests and exposure in real time to the Danish climate for at least 12 months. After the initial screening, the protection systems that perform best on the model panels with respect to the specifications outlined earlier will be applied to three industrial objects to examine their effectiveness in-situ. 184 Acknowledgements The authors wish to thank Michel Malfilâtre, private conservator, for applying all coatings and Henning Matthiesen, senior researcher in the Department of Conservation for inspiration during the planning of this project. Thanks are also due to Ship-2-Shore, Eurodeal Autoparts A/S and Th.C. Tromm GmbH for providing samples of their products. Authors Yvonne Shashoua*, Michelle Taube and Torben Holst Department of Conservation National Museum of Denmark I.C. Modewegsvej, Brede Kongens Lyngby Denmark email: yvonne.shashoua@natmus.<strong>dk</strong> * author for correspondence References 1. Seipelt, B., Pilz, M. and Kiesenberg, J., ‘Transparent coatings-a suitable corrosion protection for industrial heritage made of iron?’, in Metal 98: Proceedings of the International Conference on Metals Conservation, Draguignan, France, 27-29 May 1998, ed. W. Mourey and L. Robbiola, James and James (Science Publishers) Ltd, London (1998) 291-296. 2. Hallam D., Thurrowgood, D., Otieno-Alego, V., Creagh, D., Viduka, A., and Heath, G., ‘Studies of commercial protective petrochemical coatings on ferrous surfaces of historical and museum objects’, in Metal 2001: Proceedings of the ICOM Committee for Conservation Metals Working Group, Santiago, Chile, 2-6 April 2001, ed. I. MacLeod, J. Theile, and C. Degrigny, Western Australian Museum, Perth (2004) 297-303.
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Preserving the evidence of industri
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Copyright: This publication is issu
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Table of contents Foreword ........
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Contributions KeynotespeaKers
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”The control and disciplination o
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uildings of this age. To sum up: Th
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need tons of cans to fully understa
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one of the first to be industrializ
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manufacture of billiard balls. Hyat
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have very similar characteristics;
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MACHINERIES were introduced, but al
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16) Goodman N., Langages de l’art
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Table 1. Collections containing pla
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Figure 2: A pile of transparent cel
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diisocyanate such as diphenylmethan
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Figure 7: Environmental Stress Crac
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Author Yvonne Shashoua Senior Resea
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Contributions
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Figure 1. H.A. Brendekilde, Odense
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weaving, the imported machine spun
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Figure 2. T. Kloss. Den danske eska
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Annemette B. Scharff, MSc. The Roya
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22. Eckersberg diaries, 29.7.1834:
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The St Just Coast Project 1995 - 20
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Prior to the St Just Coast Project
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shaft. Considering the considerable
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In 2005 the slipway at Cape Cornwal
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Figure 1: The EWO dosimeter holder
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Figure 2: EWO results reporting dia
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Figure 3: Correlation of EWO respon
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The EWO is available on direct orde
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Figure 2. Nature is back at coking
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3a 3b 3c 3d 3e 70 Figure 3a-e Being
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Table 2. Case studies location Hatt
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Flameproofed textiles in museums an
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y strong acidity created as an effe
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textile fibres, especially those of
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Cold storage as an alternative to m
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% of objects 100 90 80 70 60 50 40
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% of very brittle objects (3 hand f
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lie in the range of 20-25 euros per
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Preservation of sponsored films Int
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In the case of A & B rolls the diff
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Table 2. Advantages and disadvantag
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Table 3 “The preservation route
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The scientific committee considered
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DSCF 1304 Preservation of mass-prod
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Developing a policy and procedure f
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at the (very) occasional public ope
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• the object’s current conditio
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Polymers in watches manufactured in
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as a result of the Watch Valley con
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Figure 6. The Astrolon Watch “Ide
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of status of the watch is obvious i
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[26] Bergeon, S. Ethique et conserv
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Gramophones and Records - the first
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Record manufacturing process 1925-1
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Gramophones The reproducing machine
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Pickups (and cutterheads) are very
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USS Monitor conservation: preservin
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Figure 1: X-radiograph mosaic of US
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Figure 4: Detail of ventilation uni
Page 134 and 135: Figure 8: Detail of Monitor’s pac
Page 136: Authors Eric Nordgren, David Krop,
Page 139 and 140: Figure 2. The Ducretet inductor coi
Page 141 and 142: During its time in storage at the N
Page 143 and 144: Figure 8. Wigmore Castle after cons
Page 145 and 146: [14]Henderson, J. And P. Manti (200
Page 147 and 148: The instability of iron when subjec
Page 149 and 150: Fig. 2 Rust stains on the too-thinl
Page 151 and 152: Fig. 4 Some bicycles in use and in
Page 153 and 154: 5. Conservation options: Preserving
Page 156 and 157: Another look at painted finishes on
Page 158 and 159: the currency of the finishes. The w
Page 160 and 161: Figure 3 WW2 airplane with newly-pa
Page 162 and 163: paint chips that are simulated with
Page 164 and 165: Notes: 1. There are a few notable e
Page 166 and 167: Industrially produced paint and the
Page 168 and 169: twentieth century. In the same peri
Page 170 and 171: table 1. cont. Styrenebutadiene or
Page 172 and 173: Figure 3. “A useful play!” is t
Page 174 and 175: Author Nynne Raunsgaard Sethia Den
Page 176 and 177: Protection of iron and steel in ind
Page 178 and 179: provided by the manufacturers indic
Page 180 and 181: Table 2: Suppliers for selected pro
Page 182 and 183: Table 3: Application, appearance an
Page 186: 3. Hollner, S., Mirambet, F., Rocca
Page 189 and 190: The choice of coating system depend
Page 191 and 192: Figure 4. Dockside crane No.16 Orth
Page 194 and 195: Recovering the Icon ? The restorati
Page 196 and 197: Fig 3: Early 20th century photograp
Page 198 and 199: Fig 8: New mercury-vapor rectifiers
Page 200 and 201: problematic since the colliery clos
Page 202 and 203: Despite all our rational attempts a
Page 204 and 205: Author Dipl.-Ing. Norbert Tempel, L
Page 206 and 207: The conservation of a Victorian shi
Page 208 and 209: sold to the Falkland Islanders and
Page 210 and 211: Figure 9. Fort Brockhurst Bridge -
Page 212 and 213: Figure 13 Artist’s impression of
Page 214 and 215: Figure 21 View from bow after the w
Page 216: [3] Transactions of the Institute o
Page 219 and 220: 38 in total, included on the Norweg
Page 221 and 222: published a new version of their fi
Page 223 and 224: Figure 4. The turbines, one origina
Page 225 and 226: Author Vigdis Vingelsgaard Conserva
Page 227 and 228: Figure 2: 6200 locomotive on front
Page 229 and 230: Figure 4: Methyl bromide extinguish
Page 231 and 232: 2. Biological: Obvious biological h
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Finalizing Comments
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colliery engine house to have stain
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for us to think that the treatment
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certain product may quickly turn in
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Organising committee anDersen, vivi
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