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ASTM D5178-98(2008)
Standard Test Method for Mar Resistance of Organic Coatings
3 стр.
Заменен
Печатное изданиеЭлектронный (pdf)
84.24 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
25.220.60 Organic coatings / Органические покрытия
Сборник (ASTM):
06.01 Paint –– Tests for Chemical, Physical, and Optical Properties; Appearance / Красители – Испытания на Химические, Физические и Оптические свойства; Внешний вид
Тематика:
Paints & Related Coatings
Описание
Значение и использование

In some situations, marring of coatings applied to substrates under typical use conditions is unacceptable. This test method has been found useful in differentiating the degree of marring of coatings on substrates. It is most useful in providing relative ratings for a series of coated panels exhibiting significant differences in marring.

In a limited laboratory study, meaningful mar results were impossible when powder coatings were tested. The mar marking, that is, scratches, became less perceptible with time. Therefore, powder coatings may not be applicable coatings for this test method.

Область применения

1.1 This test method covers the determination of the mar resistance on smooth, flat surfaces. Results are expressed in terms of force-to-mar films of organic coatings such as paint, varnish, and lacquer when applied to smooth, flat planar panel surfaces.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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.

Ключевые слова:
balanced beam scrape adhesion and mar tester; balanced beam tester; coatings; mar or organic mar resistance; Adhesion--paints/related coatings/materials; Deformation--paints/related coatings/materials; Balanced-beam scrape adhesion tester; Mar resistance; Organic coatings