This SAE Recommended Practice covers a procedure for evaluating plastic and multiple-layer coatings exposed to gravelometer testing (as defined in SAE J400) with an optical imaging and analysis system. The intent of the procedure is to detect, count and characterize instances of damage in the coated surface that fracture the top coat layer or penetrate through multiple layers of the coating system. It may be possible to extend this methodology of coating damage evaluation to specimens that have undergone test procedures or exposures that produce similar, discrete damage sites in the coating system. If so applied, evaluation results must be interpreted with respect to the limitations and intent implied by the original evaluation procedure and its associated rating system, if applicable.
Rationale
SAE J2261 provides technical background information of potential relevance to the development of additional SDPs. As such, it is not dynamic in nature, but retains relevance. Updates are not likely to be required in the near term.
The Textile and Flexible Plastics Committee/IFAI is comprised of the Automotive Materials Association, whose members are recognized as industry leaders committed to the growth of the automotive industry. The activities of the association center on: ¿ the development and harmonization of standards and test methods ¿ cooperation with international standards organizations ¿ education and promotion of standards, test methods and new technologies Participants in the SAE Textile and Flexible Plastics Committee/IFAI include OEMs, suppliers, consulting firms, government and other interested parties.
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J2661_202303
Optical Imaging Evaluation of Impact Damage Resistance Testing on Exterior Finishes
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Optical Imaging Evaluation of Impact Damage Resistance Testing on Exterior Finishes
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