SIST EN ISO 2409:2007
(Main)Paints and varnishes - Cross-cut test (ISO 2409:2007)
Paints and varnishes - Cross-cut test (ISO 2409:2007)
This International Standard describes a test method for assessing the resistance of paint coatings to separation from 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, among other factors, on the adhesion of the coating to either the preceding coat or the substrate. This procedure is not to be regarded, however, as a means of measuring adhesion. Where a measurement of adhesion is required, attention is drawn to the method described in ISO 4624.
Beschichtungsstoffe - Gitterschnittprüfung (ISO 2409:2007)
Diese Internationale Norm legt ein Prüfverfahren zur Abschätzung des Widerstandes einer Beschichtung gegen Trennung vom Substrat fest, wenn ein bis zum Substrat durchgehendes Gitter in die Beschichtung geschnitten wird. Die nach diesem empirischen Verfahren gemessene Eigenschaft hängt, neben anderen Faktoren, von der Haftfestigkeit der Beschichtung auf der vorhergehenden Schicht oder auf dem Substrat ab. Dieses Verfahren ist jedoch nicht als Verfahren zur Messung der Haftfestigkeit anzusehen.
Wenn die Haftfestigkeit gemessen werden soll, kann das in ISO 4624 festgelegte Verfahren angewendet werden.
ANMERKUNG 1 Obwohl die Gitterschnittprüfung in erster Linie zur Anwendung im Laboratorium gedacht ist, ist sie auch als Feldprüfung geeignet.
Das festgelegte Verfahren kann entweder als ja/nein-Prüfung oder, wenn entsprechende Umstände gegeben sind, als Einstufungsprüfung mit sechs Stufen angewendet werden. Bei Mehrschichtsystemen kann auch die Zwischenschicht-Haftfestigkeit abgeschätzt werden.
Die Prüfung kann an fertigen Gegenständen und/oder an eigens dafür hergestellten Probeplatten durchge¬führt werden.
Obwohl das Verfahren auf Beschichtungen auf harten (Stahl) und weichen (Holz und Putz) Substraten anwendbar ist, erfordern diese unterschiedlichen Substrate eine unterschiedliche Durchführung (siehe Abschnitt 6).
Das Verfahren ist für Beschichtungen mit einer Gesamtschichtdicke über 250 µm oder für Struktur¬beschich¬tungen nicht geeignet.
ANMERKUNG 2 Wenn das Verfahren auf Beschichtungen mit einer strukturierten Oberfläche angewendet wird, streuen die Ergebnisse zu stark (siehe auch ISO 16276-2).
Peintures et vernis - Essai de quadrillage (ISO 2409:2007)
L'ISO 2409:2007 décrit une méthode d'essai pour l'évaluation de la résistance des revêtements de peinture à être séparés de leurs subjectiles lorsqu'on pratique dans le revêtement un quadrillage par incisions jusqu'au subjectile. La propriété évaluée par cette méthode empirique dépend, entre autres, de l'adhérence de la couche soit à la couche précédente, soit au subjectile. Cette méthode ne peut, cependant, être considérée comme un moyen de mesurer l'adhérence.
La méthode décrite peut être utilisée soit comme essai «tout ou rien», soit, le cas échéant, comme essai en vue d'une classification en six niveaux. Lorsqu'il est appliqué à un système multicouches, le mode opératoire permet également d'évaluer la résistance des couches individuelles du revêtement à se séparer les unes des autres.
L'essai peut être réalisé sur des objets finis et/ou sur des éprouvettes spécialement préparées.
La méthode ne convient ni aux revêtements dont l'épaisseur totale dépasse 250 micromètres, ni aux revêtements texturés.
Barve in laki - Preskus oprijema z zarezovanjem rešetke (ISO 2409:2007)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 2409:2007
01-julij-2007
1DGRPHãþD
SIST EN ISO 2409:1997
Barve in laki - Preskus oprijema z zarezovanjem rešetke (ISO 2409:2007)
Paints and varnishes - Cross-cut test (ISO 2409:2007)
Beschichtungsstoffe - Gitterschnittprüfung (ISO 2409:2007)
Peintures et vernis - Essai de quadrillage (ISO 2409:2007)
Ta slovenski standard je istoveten z: EN ISO 2409:2007
ICS:
87.040 Barve in laki Paints and varnishes
SIST EN ISO 2409:2007 en;fr;de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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EUROPEAN STANDARD
EN ISO 2409
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2007
ICS 87.040 Supersedes EN ISO 2409:1994
English Version
Paints and varnishes - Cross-cut test (ISO 2409:2007)
Peintures et vernis - Essai de quadrillage (ISO 2409:2007) Beschichtungsstoffe - Gitterschnittprüfung (ISO 2409:2007)
This European Standard was approved by CEN on 14 May 2007.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2409:2007: E
worldwide for CEN national Members.
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EN ISO 2409:2007 (E)
Foreword
This document (EN ISO 2409:2007) has been prepared by Technical Committee ISO/TC 35
"Paints and varnishes" in collaboration with Technical Committee CEN/TC 139 "Paints and
varnishes", the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of
an identical text or by endorsement, at the latest by November 2007, and conflicting national
standards shall be withdrawn at the latest by November 2007.
This document supersedes EN ISO 2409:1994.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United
Kingdom.
Endorsement notice
The text of ISO 2409:2007 has been approved by CEN as EN ISO 2409:2007 without any
modifications.
2
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INTERNATIONAL ISO
STANDARD 2409
Third edition
2007-05-15
Paints and varnishes — Cross-cut test
Peintures et vernis — Essai de quadrillage
Reference number
ISO 2409:2007(E)
©
ISO 2007
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ISO 2409:2007(E)
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ii © ISO 2007 – All rights reserved
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ISO 2409:2007(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Apparatus . 2
4 Sampling. 5
5 Test panels . 5
6 Procedure . 5
7 Supplementary test conditions . 8
8 Evaluation and expression of results. 8
9 Precision. 9
10 Test report . 10
Bibliography . 11
© ISO 2007 – All rights reserved iii
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ISO 2409:2007(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 2409 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9,
General test methods for paints and varnishes.
This third edition cancels and replaces the second edition (ISO 2409:1992), which has been technically
revised. The main changes are:
⎯ the requirements for the adhesive tape have been changed;
⎯ precision data have been added.
iv © ISO 2007 – All rights reserved
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INTERNATIONAL STANDARD ISO 2409:2007(E)
Paints and varnishes — Cross-cut test
1 Scope
This International Standard describes a test method for assessing the resistance of paint coatings to
separation from 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, among other factors, on the
adhesion of the coating to either the preceding coat or the substrate. This procedure is not to be regarded,
however, as a means of measuring adhesion.
Where a measurement of adhesion is required, attention is drawn to the method described in ISO 4624.
NOTE 1 Although the test is primarily intended for use in the laboratory, the test is also suitable for field testing.
The method described may be used either as a pass/fail test or, where circumstances are appropriate, as a
six-step classification test. 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.
The test can be carried out on finished objects and/or on specially prepared test specimens.
Although the method is applicable to paint on hard (e.g. metal) and soft (e.g. wood and plaster) substrates,
these different substrates need a different test procedure (see Clause 6).
The method is not suitable for coatings of total thickness greater than 250 µm or for textured coatings.
NOTE 2 The method, when applied to coatings designed to give a rough patterned surface, will give results which will
show too much variation (see also ISO 16276-2).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 1513, Paints and varnishes — Examination and preparation of samples for testing
ISO 1514, Paints and varnishes — Standard panels for testing
ISO 2808, Paints and varnishes — Determination of film thickness
ISO 3270, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and
testing
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
IEC 60454-2, Specification for pressure-sensitive adhesive tapes for electrical purposes — Part 2: Methods of
test
© ISO 2007 – All rights reserved 1
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ISO 2409:2007(E)
3 Apparatus
3.1 General
Use ordinary laboratory apparatus, together with the apparatus specified in 3.2 to 3.6.
3.2 Cutting tool
3.2.1 General requirements
It is particularly important to ensure that the cutting tool has a defined shape and that the cutting edges are in
good condition. Suitable tools are described in 3.2.2 and 3.2.3 and shown in Figures 1a) and 1b).
A single-blade cutting tool (3.2.2) is the preferred tool in all cases, i.e. with all kinds of coating on both hard
and soft substrates. The multi-blade cutting tool (3.2.3) is not suitable for thick (> 120 µm) or hard coatings or
where the coating is applied over soft substrates.
The tools described in 3.2.2 and 3.2.3 are suitable for manual use and, although this is the more usual method
of use, the tool may be mounted on a motor-driven apparatus which gives more uniform cutting. The
application of the latter procedure shall be subject to agreement between the interested parties.
3.2.2 Single-blade cutting tool
+0,03
A single-blade cutting tool shall have a 20° to 30° edge and a blade thickness of 0,43 mm as shown in
( )
−0,03
Figure 1a).
When the cutting edge has worn to 0,1 mm it shall be reground.
3.2.3 Multi-blade cutting tool
A multi-blade cutting tool shall have six cutting edges spaced 1 mm, 2 mm or 3 mm apart [see Figure 1b)].
The width across the six cutting edges, a, shall be 5 mm for a tool which has a cutting-edge spacing of 1 mm,
and 10 mm for a tool which has a cutting-edge spacing of 2 mm.
When the cutting edge has worn to 0,1 mm it shall be reground.
The guide edges and the cutting edges shall lie on the same diameter.
3.3 Guiding and spacing edges
In order to space the cuts correctly, a series of guiding and spacing edges is necessary when using a single-
blade cutting tool. A suitable apparatus is shown in Figure 2.
2 © ISO 2007 – All rights reserved
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ISO 2409:2007(E)
Dimensions in millimetres,
except where indicated otherwise
a) Single-blade cutting tool
b) Multi-blade cutting tool
Key
1 cutting edges
a width across all six cutting edges
a
Regrind when cutting edge has worn to
...
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