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


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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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).

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  • Surface Tension
  • Salt Spray
  • Orange Peel
  • Reduce Surface Tension
  • Surface Tension Gradient