Difference between revisions of "Paraloid B-48N"

Latest revision as of 15:19, 21 October 2022

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 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)

Physical and Chemical 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 = 250,000
Tg = 50 C
Refractive Index = 1.89

Risks

Talas: MSDS

Resources and Citations

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.

B. Rydzewski, Submissitted information, Jan. 2009

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Marie Svoboda, Conservation Survey Index, unpublished, 1997

Cricket Harbeck, Adhesives Commonly used in Objects Conservation, unpublished, 1996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

@@ Line 1: / Line 1: @@
 == Description ==
-[Rohm &amp; Haas] A registered trademark for a clear, colorless, [http://cameo.mfa.org/materials/fullrecord.asp?name=thermoplastic thermoplastic] [http://cameo.mfa.org/materials/fullrecord.asp?name=acrylic resin acrylic resin]. Paraloid B-48N (formerly called Acryloid B-48N in the United States) is a copolymer of [http://cameo.mfa.org/materials/fullrecord.asp?name=methyl methacrylate methyl methacrylate] and butyl acrylate. It contains an [http://cameo.mfa.org/materials/fullrecord.asp?name=adhesion promoter adhesion promoter] that assists bonding to bare and primed metals. Analysis indicates that it also contains a [http://cameo.mfa.org/materials/fullrecord.asp?name=plasticizer plasticizer], [http://cameo.mfa.org/materials/fullrecord.asp?name=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 ([http://cameo.mfa.org/materials/fullrecord.asp?name=copper copper], [http://cameo.mfa.org/materials/fullrecord.asp?name=brass brass], [http://cameo.mfa.org/materials/fullrecord.asp?name=bronze bronze], and [http://cameo.mfa.org/materials/fullrecord.asp?name=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 [http://cameo.mfa.org/materials/fullrecord.asp?name=toluene toluene] (Paraloid B-48S).
+[Rohm &amp; Haas] A registered trademark for a clear, colorless, [[thermoplastic|thermoplastic]] [[acrylic%20resin|acrylic resin]]. Paraloid® B-48N (formerly called Acryloid® B-48N in the United States) is a copolymer of [[methyl%20methacrylate|methyl methacrylate]] and butyl acrylate. It contains an [[adhesion%20promoter|adhesion promoter]] that assists bonding to bare and primed metals. Analysis indicates that it also contains a [[plasticizer|plasticizer]], [[dibutyl%20phthalate|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 ==
@@ Line 7: / Line 7: @@
 Acryloid B-48N; Paraloid B48N (sp); Paraloid B-48S; Acryloid B48N (sp); Acryloid B-48N (sp)
-== Other Properties ==
+== Physical and Chemical Properties ==
-Soluble in toluene, xylene, Cellosolve acetate, methyl ethyl ketone, and acetone.
+* Soluble in toluene, xylene, Cellosolve acetate, methyl ethyl ketone, and acetone.
+* Adding 2% ethanol may reduce cloudiness and stringiness.
+* Density = 1.15
+* Molecular Weight = 250,000
+* Tg = 50 C
+* Refractive Index = 1.89
-Adding 2% ethanol may reduce cloudiness and stringiness.
+== Risks ==
-{| class="wikitable"
+* Talas: [http://talasonline.com/photos/msds/b48n.pdf MSDS]
-|-
-! scope="row"| Density
-| 1.15
-|-
-! scope="row"| Molecular Weight
-| Tg= 50 C
-|-
-! scope="row"| Refractive Index
-| 1.89
-|}
-== Hazards and Safety ==
+==Resources and Citations==
-Talas: [http://talasonline.com/photos/msds/b48n.pdf 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 ==
+* B. Rydzewski, Submissitted information, Jan. 2009
-* External source or communication, External source or communication  Comment: Submission by B. Rydzewski, Jan. 2009
-* Jane Down, Maureen MacDonald, Jean Te'treault, Scott Williams, 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.
+* Product Information  Comment: Rohm and Haas acryloid acrylic resins sheet. 1986.
-* Website address 1, Website address 1  Comment: www.rohmhaas.com
+* Comment: www.rohmhaas.com
-* Marie Svoboda, Marie Svoboda, Conservation Survey Index, unpublished, 1997
+* Marie Svoboda, Conservation Survey Index, unpublished, 1997
-* Cricket Harbeck, Cricket Harbeck, Adhesives Commonly used in Objects Conservation, unpublished, 1996
+* Cricket Harbeck, Adhesives Commonly used in Objects Conservation, unpublished, 1996
-* Conservation Materials Ltd., Conservation Materials Ltd., Catalog
+* Conservation Materials Ltd., Catalog
-* Conservation Support Systems, Conservation Support Systems, Catalog, 1997
+* Conservation Support Systems, Catalog, 1997
 [[Category:Materials database]]