ISO 2409:1992 pdf download.Paints and varnishes - Cross-cut test
I Scope
1.1 This International Standard is one of a series of standards dealing with the sampling and testing of paints, varnishes and related products. It specifies a test method for assessing the resistance of paint coatings to separatioii [ruin substrates when a right-angle lattice pattern is cut into the coating, penetrating through to the substrate. The property measured by this empirical test procedure depends, ainionj oilier lactors, on the adhesion of the coatinu to either the preceding coat or the substrate. This procedure is not to be regarded, however, as a means or measuring adhesion.
Where a measurement of adhesion is required, attention is drawn to the method described in ISO 4624:1978, Paints and varnishes — Pull-off test for adhesion.
NOTE 1 Although the test is primarily intended for use in the laboratory, the test is also suitable for field testing.
1.2 The method described may be applied either as a pass/fail test or. where circumstances are appropriate, as a six-step classification test (see 8.3). When applied to a multi-coat system, assessment of the resistance to separation of individual layers of the coating from each other may be made
1.3 The test may be carried out on finished objects and/or on specially prepared test specimens.
Although the method is applicable to paint on hard (steel) and soft (wood and plaster) substrates, these different substrates need a different test procedure (see clause 7).
The method Is not suitable for coatings of total thickness greaLer Ihaii 250 iini or for textured coatings.
2 Normativo
The following standards contain provisions which. throuqh releretice iii this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.
ISO 1512:1991, Paints and varnishes — Sampling of products in liquid or paste form.
ISO 1513:—”. PaInts and varnishes — Examination and pieparation of samples for testing.
ISO 1514:2), Paints and varnishes — Standard panl.s for fecting.
ISO 2808:1991. Paints and varnishes — Determination of film thickness.
ISO 3270:1984, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and testing.
IEC 454-2:1974, Specifications for pressure-sensitive adhesive tapes for electrical purposes — Part 2:
Methods of test.ISO 2409 pdf download.