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ASTM D3170-12

Current Revision

Standard Test Method for Chipping Resistance of Coatings

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1.1 This test method covers the determination of the resistance of coatings to chipping damage by stones or other flying objects.

Note 1This test method is similar to SAE J-400.

1.2 The values stated in metric units are to be regarded as the standard. The English units given in parentheses are for information only. All dimensions are nominal unless otherwise specified.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


4.1 Owners consider chipping of coatings, particularly on the leading faces and edges of automobile surfaces, unacceptable. In formulating a coating or coating system to meet service requirements, the resistance to chipping damage by flying objects such as gravel is one of the properties of importance since it can vary considerably as other properties are adjusted. Since resistance to chipping decreases at lower temperatures partly as the result of decreased flexibility, the test may be more directly related to service conditions by performing it at a low temperature. This test method is designed to produce a controlled amount of impact by the media on the coated panel in order to enhance reproducibility.

SDO ASTM: ASTM International
Document Number D3170
Publication Date July 15, 2012
Language en - English
Page Count 7
Revision Level 12
Supercedes
Committee D01.55
Publish Date Document Id Type View
July 15, 2012 D3170-12 Revision
July 10, 2003 D3170-03 Revision
May 10, 1996 D3170-01 Revision
June 1, 2007 D3170-03R07 Reaffirmation
May 10, 1996 D3170-87R96E01 Reaffirmation