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SAE J2661 2011 Edition, May 1, 2011
Optical Imaging Evaluation of Impact Damage Resistance Testing on Exterior
Finishes
Description / Abstract:
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.
Applicability
This method may be applied to the evaluation of surface damage on plastic and coated surfaces caused by means other than gravelometer testing; provided that the specimen substrate is not significantly deformed to a degree that would prevent all surface damage sites from remaining in a single focal plane capable of being adequately resolved by the image capturing device.
Application
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.
Applicability
This method may be applied to the evaluation of surface damage on plastic and coated surfaces caused by means other than gravelometer testing; provided that the specimen substrate is not significantly deformed to a degree that would prevent all surface damage sites from remaining in a single focal plane capable of being adequately resolved by the image capturing device.
Application
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.
SAE J2661 2011 Edition, May 1, 2011
Optical Imaging Evaluation of Impact Damage Resistance Testing on Exterior
Finishes