Difference between revisions of "Paraloid B-48N"

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== Description ==
 
== Description ==
  
[Rohm & Haas] A registered trademark for a clear, colorless, [[thermoplastic|thermoplastic]] [[acrylic|resin acrylic resin]]. Paraloid B-48N (formerly called Acryloid B-48N in the United States) is a copolymer of [[methyl|methacrylate methyl methacrylate]] and butyl acrylate. It contains an [[adhesion|promoter adhesion promoter]] that assists bonding to bare and primed metals. Analysis indicates that it also contains a [[plasticizer|plasticizer]], [[dibutyl|phthalate dibutyl phthalate]], that is sometimes concentrated in a residue on the bottom of the container. Paraloid B-48N is used as a clear coating for metals ([[copper|copper]], [[brass|brass]], [[bronze|bronze]], and [[zinc|zinc]]). It produces a tough, flexible coating with excellent durability. Paraloid B-48N is supplied as solid pellets or as 45% solids solution in [[toluene|toluene]] (Paraloid B-48S).
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[Rohm & Haas] A registered trademark for a clear, colorless, [[thermoplastic|thermoplastic]] [[acrylic|acrylic resin]]. Paraloid B-48N (formerly called Acryloid B-48N in the United States) is a copolymer of [[Polymethyl%20methacrylate|methyl methacrylate]] and butyl acrylate. It contains an [[adhesion promoter adhesion promoter]] that assists bonding to bare and primed metals. Analysis indicates that it also contains a [[plasticizer|plasticizer]], [[dibutyl%phthalate|dibutyl phthalate]], that is sometimes concentrated in a residue on the bottom of the container. Paraloid B-48N is used as a clear coating for metals ([[copper|copper]], [[brass|brass]], [[bronze|bronze]], and [[zinc|zinc]]). It produces a tough, flexible coating with excellent durability. Paraloid B-48N is supplied as solid pellets or as 45% solids solution in [[toluene|toluene]] (Paraloid B-48S).
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==

Revision as of 11:26, 3 November 2018

Description

[Rohm & Haas] A registered trademark for a clear, colorless, thermoplastic acrylic resin. Paraloid B-48N (formerly called Acryloid B-48N in the United States) is a copolymer of methyl methacrylate and butyl acrylate. It contains an adhesion promoter adhesion promoter that assists bonding to bare and primed metals. Analysis indicates that it also contains a plasticizer, dibutyl phthalate, that is sometimes concentrated in a residue on the bottom of the container. Paraloid B-48N is used as a clear coating for metals (copper, brass, bronze, and zinc). It produces a tough, flexible coating with excellent durability. Paraloid B-48N is supplied as solid pellets or as 45% solids solution in toluene (Paraloid B-48S).

Synonyms and Related Terms

Acryloid B-48N; Paraloid B48N (sp); Paraloid B-48S; Acryloid B48N (sp); Acryloid B-48N (sp)

Other Properties

Soluble in toluene, xylene, Cellosolve acetate, methyl ethyl ketone, and acetone.

Adding 2% ethanol may reduce cloudiness and stringiness.

Density 1.15
Molecular Weight Tg= 50 C
Refractive Index 1.89

Hazards and Safety

Talas: MSDS

Additional Information

J. Down, M.MacDonald, J.Te'treault, S.Williams, Adhesive Testing at the Canadian Conservation Institute-An Evaluation of Selected Poly(Vinyl acetate) and Acrylic Adhesives", Studies in Conservation 41:19-44, 1996.

Sources Checked for Data in Record

  • External source or communication, Comment: Submission by B. Rydzewski, Jan. 2009
  • Jane Down, Maureen MacDonald, Jean Te'treault, Scott Williams, Adhesive testing at the Canadian Conservation Institute-An evaluation of selected poly(vinyl acetate) and acrylic adhesives., Studies in Conservation, 41, 19-44, 1996
  • Product Information Comment: Rohm and Haas acryloid acrylic resins sheet. 1986.
  • Comment: www.rohmhaas.com
  • Marie Svoboda, Conservation Survey Index, unpublished, 1997
  • Cricket Harbeck, Adhesives Commonly used in Objects Conservation, unpublished, 1996
  • Conservation Materials Ltd., Catalog
  • Conservation Support Systems, Catalog, 1997

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