Preservation Basics:
Timber and Metal
Andrew Pearce: National Museum of Australia
Deterioration of Timber
Weathering of timber mast
Delamination of plywood in
late 1800’s pram
Rot damage to Walter
Burley-Griffin door
Deterioration of Metals
Wear damage to anchor chain
Steel pylon bolted to aluminium
surface of helicopter
Star picket (iron in saline
environment) and “bronze
disease” on coins
Fingerprint etching on silver
Corrosion of lead by timber
vapours
Timber Preservation Basics
•
•
•
•
Protect from moisture
Protect from light
Protect from biological attack
Protect from i...
Metal Preservation Basics
•
•
•
•
Protect from moisture
Keep salts away
Limit overpolishing
Be aware of bimetal corrosion...
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Preservation Basics: Timber and Metal by Andrew Pearce

Published on: Mar 4, 2016
Published in: Business      Technology      
Source: www.slideshare.net


Transcripts - Preservation Basics: Timber and Metal by Andrew Pearce

  • 1. Preservation Basics: Timber and Metal Andrew Pearce: National Museum of Australia
  • 2. Deterioration of Timber
  • 3. Weathering of timber mast
  • 4. Delamination of plywood in late 1800’s pram
  • 5. Rot damage to Walter Burley-Griffin door
  • 6. Deterioration of Metals
  • 7. Wear damage to anchor chain
  • 8. Steel pylon bolted to aluminium surface of helicopter
  • 9. Star picket (iron in saline environment) and “bronze disease” on coins
  • 10. Fingerprint etching on silver
  • 11. Corrosion of lead by timber vapours
  • 12. Timber Preservation Basics • • • • Protect from moisture Protect from light Protect from biological attack Protect from impact and abrasion • Reduce the loads
  • 13. Metal Preservation Basics • • • • Protect from moisture Keep salts away Limit overpolishing Be aware of bimetal corrosion and reduce moisture if possible • Watch the vapors and pollution: air transfer and tissue wrapping • Wear, impact, abrasion and vandalism • Don’t forget the non-metal bits!

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