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Control of film defects in solventborne high-solids coatings: The non-additives vs. a new additives approach

  • Technology Forum Article
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Journal of Coatings Technology

Abstract

Acetylenic based surfactants have long found utility in compliant coatings such as waterborne systems and are demonstrated here to enhance performance of solventborne high solids systems. Three new additives are shown to reduce surface defects such as craters and orange peel in conventionally spray applied polyester and epoxy paints. Important to this new additive technology is the lack of adverse effect on physical properties, recoatability, and durability of the applied coating. Also discussed are the theory and background of the origins of surface defects with emphasis on the influence of additives on paint rheology, compatibility, and surface tension.

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Authors and Affiliations

  1. Air Products and Chemicals, Inc., USA

    Joel Schwartz & Brett A. Moyer

  2. TA Instruments, Inc., USA

    Raoul E. Smith

Authors
  1. Joel Schwartz
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  2. Brett A. Moyer
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  3. Raoul E. Smith
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7201 Hamilton Blvd., Allentown, PA 18195.

109 Lukens Dr., New Castle, DE 19720.

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Schwartz, J., Moyer, B.A. & Smith, R.E. Control of film defects in solventborne high-solids coatings: The non-additives vs. a new additives approach. Journal of Coatings Technology 70, 71–78 (1998). https://doi.org/10.1007/BF02697843

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  • DOI: https://doi.org/10.1007/BF02697843

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