Difference between revisions of "Agateen Lacquer"

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== Description ==
 
== Description ==
  
A brand name for a [[cellulose%20nitrate|cellulose nitrate]] based lacquer.  Agateen lacquer #27 produces a crystal clear film that minimizes tarnish on silver and silverplate. In the 1980s, The Winterthur Museum began testing lacquer coatings and chose Agateen Lacquer #27, a cellulose nitrate polymer, to care for their silver collection. This coating provides the best visual results and is compatible with the silver surface, resulting in a durable bond. Agateen provides minimal visual intrusion, stability, and tarnish protection. However, there is a limited life expectancy for lacquer coatings - approximately 20-30 years dependent on environmental conditions. It may be applied by brushing, spraying or dipping.  Agateen thinner is a solvent blend of [[methyl isobutyl ketone]], toluol, [[butyl alcohol|butanol]] and [[amyl acetate]] that is sold for use with Agateen lacquer.
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A brand name for a [[cellulose%20nitrate|cellulose nitrate]] based solution that produces a crystal clear film often used to minimize tarnish on [[silver]] and [[silverplate]]. In the 1980s, The Winterthur Museum began testing lacquer coatings and chose Agateen Lacquer #27 to care for their silver collection based on its visual appearance, stability, and tarnish protection. Even so, the coating has a limited life expectancy of  approximately 20-30 years dependent on environmental conditions. The application process, via brushing, spraying or dipping, is critical as the coating must an even, continuous film to provide protection from atmospheric pollutants.  Agateen thinner is a solvent blend of [[methyl isobutyl ketone]], [[toluene]], [[butyl alcohol|butanol]] and [[butyl acetate]] that is sold for use with Agateen lacquer.
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
cellulose nitrate
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Agateen lacquer #7; cellulose nitrate
  
== Other Properties ==
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== Applications ==
 +
* Coating silver
  
Soluble in acetone.
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== Personal Risks ==
  
== Hazards and Safety ==
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== Collection Risks ==
  
 
Becomes yellow and brittle with age.
 
Becomes yellow and brittle with age.
  
== Additional Information ==  
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'''Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below'''
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* [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Exhibition_Paints_and_Sealants#Agateen0001 Agateen] tested in 2016
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== Physical and Chemical Properties ==
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Soluble in acetone. 
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== Working Properties ==
  
'''Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below'''
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== Forms and Sizes ==
  
° [http://www.conservation-wiki.com/wiki/Oddy_Test_Results:_Exhibition_Paints_and_Sealants#Agateen0001 Agateen] tested in 2016
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== Resources and Citations ==
  
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* AIC Conservation-Wiki: [http://www.conservation-wiki.com/wiki/Tarnish Tarnish]
  
== Sources Checked for Data in Record ==
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* Chandra L. Reedy, Richard A Corbett, Deborah L. Long, Robert E. Tatnall and Bradley D. Krantz "Evaluation of three Protective Coating for Indoor Silver Objects",  Objects Specialty Group postprints, American Institute for Conservation 27th Annual Meeting, St. Louis. Washington, D. C.:AIC. 6:41–69, 1998. [http://resources.conservation-us.org/wp-content/uploads/sites/8/2015/02/osg006-04.pdf Link]
  
 
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 436
 
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 436
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[[Category:Materials database]][[Category:MWG]]
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[[Category:Materials database]][[Category:MWG]][[Category: Coating: Solvent-based]]

Latest revision as of 15:37, 10 September 2020

Description

A brand name for a Cellulose nitrate based solution that produces a crystal clear film often used to minimize tarnish on Silver and Silverplate. In the 1980s, The Winterthur Museum began testing lacquer coatings and chose Agateen Lacquer #27 to care for their silver collection based on its visual appearance, stability, and tarnish protection. Even so, the coating has a limited life expectancy of approximately 20-30 years dependent on environmental conditions. The application process, via brushing, spraying or dipping, is critical as the coating must an even, continuous film to provide protection from atmospheric pollutants. Agateen thinner is a solvent blend of Methyl isobutyl ketone, Toluene, butanol and Butyl acetate that is sold for use with Agateen lacquer.

Synonyms and Related Terms

Agateen lacquer #7; cellulose nitrate

Applications

  • Coating silver

Personal Risks

Collection Risks

Becomes yellow and brittle with age.

Links to Oddy Test results posted on AIC Wiki Materials Database Pages for individual materials below

Physical and Chemical Properties

Soluble in acetone.

Working Properties

Forms and Sizes

Resources and Citations

  • Chandra L. Reedy, Richard A Corbett, Deborah L. Long, Robert E. Tatnall and Bradley D. Krantz "Evaluation of three Protective Coating for Indoor Silver Objects", Objects Specialty Group postprints, American Institute for Conservation 27th Annual Meeting, St. Louis. Washington, D. C.:AIC. 6:41–69, 1998. Link
  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 436
  • Marie Svoboda, Conservation Survey Index, unpublished, 1997

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