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Characterization of the Surface Mechanical properties of Paints and Polymeric Surface Coatings

The mechanical properties of polymeric coatings are often overlooked because researchers are not aware of how modern instrumentation can now aid them in understanding how a particular product may survive in service conditions. In many applications the two main considerations are aesthetics and durability, both of which can be directly related to the mechanical properties of the base material. 

Product Number: 41209-502-SG
Author: Nicholas X. Randall
Publication Date: 2009
Industry: Coatings
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The mechanical properties of polymeric coatings are often overlooked because researchers are not aware of how modern instrumentation can now aid them in understanding how a particular product may survive in service conditions. In many applications the two main considerations are aesthetics and durability, both of which can be directly related to the mechanical properties of the base material. For example, the durability of a paint will depend on its hardness, elastic modulus, scratch resistance, abrasion resistance and on how well it adheres to its substrate. The aesthetic quality of the paint surface will depend on its ability to resist surface scratches and deformations which will diffract light and cause it to lose its glossy appearance. This paper presents the instrumentation methods required to measure accurate mechanical properties of soft polymeric coating materials which are commonly used in paints, varnishes, lacquers, etc. A range of examples of typical results is also included to give the reader some ideas of the information which can be obtained from some of these simple tests.

The mechanical properties of polymeric coatings are often overlooked because researchers are not aware of how modern instrumentation can now aid them in understanding how a particular product may survive in service conditions. In many applications the two main considerations are aesthetics and durability, both of which can be directly related to the mechanical properties of the base material. For example, the durability of a paint will depend on its hardness, elastic modulus, scratch resistance, abrasion resistance and on how well it adheres to its substrate. The aesthetic quality of the paint surface will depend on its ability to resist surface scratches and deformations which will diffract light and cause it to lose its glossy appearance. This paper presents the instrumentation methods required to measure accurate mechanical properties of soft polymeric coating materials which are commonly used in paints, varnishes, lacquers, etc. A range of examples of typical results is also included to give the reader some ideas of the information which can be obtained from some of these simple tests.

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