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SAE J400 (AUG2022)

Current Revision

Test for Chip Resistance of Surface Coatings

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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.

SDO SAE: SAE International
Document Number J400
Publication Date Aug. 26, 2022
Language en - English
Page Count 12
Revision Level 202208
Supercedes
Committee
Publish Date Document Id Type View
Aug. 26, 2022 J400_202208 Revision
Oct. 23, 2012 J400_201210 Revision
Nov. 12, 2002 J400_200211 Revision
Dec. 11, 2001 J400_200112 Revision
Jan. 1, 1985 J400_198501 Revision
June 1, 1980 J400_198006 Revision
July 1, 1968 J400_196807 Revision