RE: Colophonium

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From:"Kellar, Eric" <kellarec@MSX.UPMC.EDU>, "''" <>
Date:Tue, 4 May 1999 07:20:08 -0400

Dr. Carson:

Colophony, Rosin in three grades - 100g for $3.50 or 1kg for $10.80. 

Available from Kremer Pigments Inc.
228 Elizabeth Street
New York NY 10012
For orders call:
Mon. - Sat. 11 a.m - 6.30 p.m. E.T.
or FAX (212) 219 2395 

Colophonium Rosin -
A complex combination derived from wood, especially pine wood. 
Composed primarily of resin acids and modified resin acids such as dimers
decarboxylated resin acids. Includes rosin stabilized by catalytic
Colophonium is an alcohol soluble resin which is sometimes used as a binder.

It is not used very often since it is expensive and doesn't have much
adhesion capacity.

Artist paint stores often sell colophonium and I have also seen it in music
because it is used on bows by violin players. Colophonium resin is also
found in soldering flux.

Colophony use has declined with advent of modern plastics but it is still 
used as an adhesive, a surface coater and as a varnish. Unheated colophony
more likely to cause skin irritation and sensitisation and the common 
sticking plaster reaction is due to colophony. Colophony can be found in a 
range of everyday items - transparent soaps, cosmetics, polishes, cigarettes

and chewing gum. 

Other products that may contain colophony include adhesives, cements, 
putties, sealants, polishes, waxes, lacquers, varnishes, stains, greases, 
paints, and some oils. Colophony may also be found in asphalt products, 
waterproofing agents, soldering materials, polyethylene, drive belts, 
sawdust, solvents, and linoleum. In the home may be found in match tips, 
fireworks, yellow laundry soap, pine-oil cleaners, chewing 
gums, modeling clay, and tacky substances such as athletic grip aids and 
postage stamp glue. 

Eric C. Kellar
University of Pittsburgh Medical Center

> ----------
> From:[]
> Sent: 	Monday, May 03, 1999 5:15 PM
> To:
> Subject: 	Colophonium
> Does anyone have a source for colophonium resin?  I understand that Fisher
> no 
> longer makes it.
> Thanks,
> Freida Carson

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