ASTM D7514-09 Ink Stain-blocking of Architectural Paint Systems

ASTM D7514-09 Ink Stain-blocking of Architectural Paint Systems

ASTM D7514-09 gives a procedure of assessing the capacity of a structural paint framework to impede ink stains from markers and composing instruments from seeping through a preliminary into a topcoat. The qualities expressed in SI units are considered as standard.

    Scope:

    Paint organizations and natural substance providers utilize ASTM D7514-09 to evaluate the viability of inside building introductions for hindering stains from seeping through to a topcoat. Diverse ink-stained substrates might give different outcomes for stain-impeding execution for a groundwork and topcoat framework. This test technique might be utilized for several various ink-stained surfaces.

    Procedure:

    A substrate, regularly a painted surface or an uncoated building material, is stained utilizing a progression of ink composing executes. The stained substrate is covered with the test paints and permitted to dry for a predetermined stretch. The test paints are top-covered with divider paint, and the test paint/topcoat framework is assessed for stain-hindering adequacy.

    Specimen size:

    A film tool, for example, a drawdown bar, prepared to do applying 0.075 to 0.100 mm (3 to 4 mil) wet film thickness with a base film width on a case-by-case basis to cover the test region is required.

    Data:

    The report mentions the average overall score of every individual stain. The complete score depends on the summation of midpoints for each composing instrument (a limit of 40 focuses when four sorts of composing instruments are utilized).

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