This SAE Recommended Practice covers a laboratory procedure for testing and evaluating the resistance of surface coating to chipping by gravel impact. The test is designed to reproduce the effect of gravel or other media striking exposed paint or coated surfaces of an automobile. The specific intent of the test is to evaluate organic surface coatings or systems on flat test panels; however, it may be possible to extend this type of testing to finished parts or other types of materials such as anodized aluminum or plated plastics if the results are interpreted with respect to the limitations and intent implied by the original testing procedures and rating system.
This document may involve hazardous materials, operations, and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this document to consult and establish safety and health practices and determine the applicability of regulatory limitations prior to use.
All dimensions are nominal unless otherwise noted.
Rationale
SAE J400 is being revised to correct some technical errors and to make the standard easier to follow.
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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Test for Chip Resistance of Surface Coatings
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Test for Chip Resistance of Surface Coatings
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