Graffiti on building and structures is an ongoing and increasing problem. A number of coatings have been produced that are intended to be resistant to the application of a graffiti marking, or to provide a surface from which such markings can be easily removed. The procedures described in this practice provide a standard set of conditions that can be used to evaluate the graffiti resistance of a surface.

Graffiti resistance determined according to this practice is applicable to smooth surfaces. Graffiti resistance of the same coatings applied to a rough or textured surface may be lower.

Graffiti resistance of materials determined after natural or laboratory accelerated weathering conducted according to this practice, is considered as having more weight than graffiti resistance of the same material determined using freshly applied graffiti on surfaces, that have not been weathered. Graffiti resistance of materials determined after natural weathering should be considered as having more weight than graffiti resistance determined after laboratory accelerated weathering.

1.1 This practice covers a basic method for evaluating graffiti resistance of coatings, and use of this practice to evaluate graffiti resistance of coatings after outdoor or laboratory accelerated exposure. Graffiti resistance is based on how a defined set of markings is removed by a defined set of cleaning agents.

1.2 A procedure for evaluating graffiti removal by alternate cleaning agents is included in a mandatory annex.

1.3 This practice also defines procedures to evaluate graffiti removal after remarking with subsequent re-cleaning. It does not address recoatability after a coating is no longer graffiti resistant.

1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 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.