Standard Test Method for Porosity of Paint Film by Mineral Oil Absorption

Importancia y uso:

5.1 The porosity of a paint film is closely related to the important practical characteristics of stain resistance, abrasion resistance, durability, and the hold-out of any paint subsequently applied.

5.2 This test provides a precise means for evaluating and comparing the quality of paint films, insofar as it pertains to porosity as determined on a coating applied to a nonporous substrate. Porosity measured using this test method may not be an accurate predictor of coating porosity when the coating is applied to substrate of higher absorption characteristics.

5.3 Unlike current Test Method D3258 Porosity of Paint Films, which is effective only with light-colored paints, this test method is equally effective with paints of any color, both dark and light. Also unlike Test Method D3258, its results are not influenced by the hiding characteristics of the paint film.

Subcomité:

D01.42

Referida por:

D5324-16R22

Volúmen:

06.02

Número ICS:

87.040 (Paints and varnishes)

Palabras clave:

film porosity; porosity; resistance-penetration (into paint films);