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[BASF] A brand name for a Polycyclohexanone resin that was developed in 1929 and manufactured in Germany from 1950 until 1967. It was replaced by BASF Ketone Resin N. AW-2 is the condensation product of Cyclohexanone and methyl cyclohexanone. Polycyclohexanones resemble Dammar in that they are soluble in turpentine and form a glossy, colorless coating. However, they are harder and exhibit less wrinkling, blooming and yellowing than natural resins. Because polycyclohexanone coatings are hard, however, many formulations add a plasticizer for flexibility and many of the plasticizers tend to yellow. Additionally the polycyclohexanones oxidize, become brittle and less soluble with age. They have been used for retouching and occasionally for picture varnishes.

Other Properties

Soluble in turpentine and mineral spirits.

Additional Information

° K.Wehlte, The Materials and Techniques of Painting, Van Nostrand Reinhold Co., New York, 1975.

° La Rie, A.Shedrinsky, "The Chemistry of Ketone Resins and the Synthesis of a Derivative with Increased Stability and Flexibility" Studies in Conservation, 34:9-19, 1989.

Sources Checked for Data in Record

  • Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
  • Teri Hensick, contributed information, 1998

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