SIST EN ISO 2409:2013
(Main)Paints and varnishes - Cross-cut test (ISO 2409:2013)
Paints and varnishes - Cross-cut test (ISO 2409:2013)
This International Standard specifies 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, the method described in ISO 4624 may be used. 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 can 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.
Beschichtungsstoffe - Gitterschnittprüfung (ISO 2409:2013)
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 2409:2013)
L'ISO 2409:2013 spécifie 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 déterminée 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 multicouche, 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 est supérieure à 250 µm, ni aux revêtements texturés.
Barve in laki - Preskus oprijema z zarezovanjem rešetke (ISO 2409:2013)
Ta mednarodni standard določa preskusne metode za ocenjevanje odpornosti barvnih premazov proti ločevanju od podlag, ko se v premaz vreže mrežast vzorec pod pravim kotom in prodre do podlage. Lastnost, ki se meri s tem empiričnim preskusnim postopkom, je med drugim odvisna od sprijemljivosti premaza s predhodnim premazom ali podlago. Vendar ta postopek ne velja za način merjenja sprijemljivosti. Kadar je potrebno merjenje sprijemljivosti, se lahko uporabi metoda, opisana v standardu ISO 4624. Opisana metoda se lahko uporabi kot preskus, ki ga je mogoče uspešno/neuspešno opraviti, ali pri ustreznih okoliščinah kot klasifikacijski preskus v šestih korakih. Ko se uporablja pri večslojnem sistemu, se lahko naredi ocena odpornosti proti ločevanju posameznih plasti premaza ene od druge. Preskusi se lahko opravijo na dokončanih objektih in/ali na posebej pripravljenih preskusnih vzorcih. Čeprav se metoda uporablja za barvo na trdih (npr. kovina) in mehkih (npr. les in mavec) podlagah, je pri različnih podlagah potreben različen preskusni postopek (gl. točko 6). Metoda ni primerna za premaze s skupno debelino nad 250 μm ali za teksturirane premaze.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 2409:2013
01-september-2013
1DGRPHãþD
SIST EN ISO 2409:2007
Barve in laki - Preskus oprijema z zarezovanjem rešetke (ISO 2409:2013)
Paints and varnishes - Cross-cut test (ISO 2409:2013)
Beschichtungsstoffe - Gitterschnittprüfung (ISO 2409:2013)
Peintures et vernis - Essai de quadrillage (ISO 2409:2013)
Ta slovenski standard je istoveten z: EN ISO 2409:2013
ICS:
87.040 Barve in laki Paints and varnishes
SIST EN ISO 2409:2013 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 2409:2013
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SIST EN ISO 2409:2013
EUROPEAN STANDARD
EN ISO 2409
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2013
ICS 87.040 Supersedes EN ISO 2409:2007
English Version
Paints and varnishes - Cross-cut test (ISO 2409:2013)
Peintures et vernis - Essai de quadrillage (ISO 2409:2013) Beschichtungsstoffe - Gitterschnittprüfung (ISO 2409:2013)
This European Standard was approved by CEN on 5 February 2013.
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-CENELEC 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-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2409:2013: E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 2409:2013
EN ISO 2409:2013 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 2409:2013
EN ISO 2409:2013 (E)
Foreword
This document (EN ISO 2409:2013) 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 August 2013, and conflicting national standards shall be withdrawn at
the latest by August 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 2409:2007.
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, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 2409:2013 has been approved by CEN as EN ISO 2409:2013 without any modification.
3
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SIST EN ISO 2409:2013
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SIST EN ISO 2409:2013
INTERNATIONAL ISO
STANDARD 2409
Fourth edition
2013-02-15
Paints and varnishes — Cross-cut test
Peintures et vernis — Essai de quadrillage
Reference number
ISO 2409:2013(E)
©
ISO 2013
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SIST EN ISO 2409:2013
ISO 2409:2013(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 2409:2013
ISO 2409:2013(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Apparatus . 2
3.1 General . 2
3.2 Cutting tool . 2
3.3 Guiding and spacing edges . 5
3.4 Viewing lens . 5
4 Sampling . 7
5 Test panels . 7
5.1 Substrate . 7
5.2 Preparation and coating . . 7
5.3 Drying . 7
5.4 Thickness of coating . 7
6 Procedure. 7
6.1 General . 7
6.2 Cutting the coating using the manual procedure . 8
6.3 Cutting the coating using a motor-driven tool . 9
7 Evaluation and expression of results . 9
8 Designation of the test result . 9
9 Precision .10
9.1 Repeatability limit, r . 10
9.2 Reproducibility limit, R . 10
10 Test report .10
Annex A (informative) Examples of suitable procedures for removing loose paint .12
Bibliography .14
© ISO 2013 – All rights reserved iii
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SIST EN ISO 2409:2013
ISO 2409:2013(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 fourth edition cancels and replaces the third edition (ISO 2409:2007), which has been technically
revised. The main changes are as follows:
a) the description of suitable methods for removal of loose paint have been transferred to an informative
annex as examples and, for the method using adhesive tape, the adhesive strength of the tape is no
longer specified;
b) the single-blade cutting tool originally used in the first edition (1972) of this International Standard
has been re-introduced;
c) a cutting tool used with automatic cross-cut apparatus has also been specified;
d) the pictorial standard for classification 2 has been replaced by one originally used in the first edition
(1972) and the second edition (1992) of this International Standard;
e) plastics have been added as an example of a hard substrate in 6.1.4;
f) a designation code has been introduced to indicate the test result;
g) the supplementary test conditions previously in Clause 7 have been integrated in the test report;
h) a note has been added to Subclause 3.2.1 that the apparatus (manual or motor-driven) and the type
of cutting tool used have an influence on the test result.
iv © ISO 2013 – All rights reserved
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SIST EN ISO 2409:2013
INTERNATIONAL STANDARD ISO 2409:2013(E)
Paints and varnishes — Cross-cut test
1 Scope
This International Standard specifies 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 determined 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.
[1]
Where a measurement of adhesion is required, the method described in ISO 4624 may be used.
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 can 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
[2]
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 test samples
ISO 1514, Paints and varnishes — Standard panels for testing
ISO 2808, Paints and varnishes — Determination of film thickness
ISO 13076, Paints and varnishes — Lighting and procedure for visual assessments of coatings
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
© ISO 2013 – All rights reserved 1
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SIST EN ISO 2409:2013
ISO 2409:2013(E)
3 Apparatus
3.1 General
Use ordinary laboratory apparatus, together with the apparatus specified in 3.2 to 3.4.
3.2 Cutting tool
3.2.1 General requirements
It is particularly important to ensure that the cutting tool is capable of creating the specified V-shape
throughout the total coating thickness, 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 1 and 2.
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, which is the more usual method of
use, but the tools may also be mounted on a motor-driven apparatus, which gives more uniform cutting.
The application of the latter procedure shall be subject
...
SLOVENSKI STANDARD
oSIST prEN ISO 2409:2010
01-junij-2010
Barve in laki - Preskus oprijema z zarezovanjem rešetke (ISO/DIS 2409:2010)
Paints and varnishes - Cross-cut test (ISO/DIS 2409:2010)
Beschichtungsstoffe - Gitterschnittprüfung (ISO/DIS 2409:2010)
Peintures et vernis - Essai de quadrillage (ISO/DIS 2409:2010)
Ta slovenski standard je istoveten z: prEN ISO 2409
ICS:
87.040 Barve in laki Paints and varnishes
oSIST prEN ISO 2409:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 2409:2010
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oSIST prEN ISO 2409:2010
EUROPEAN STANDARD
DRAFT
prEN ISO 2409
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2010
ICS 87.040 Will supersede EN ISO 2409:2007
English Version
Paints and varnishes - Cross-cut test (ISO/DIS 2409:2010)
Peintures et vernis - Essai de quadrillage (ISO/DIS Beschichtungsstoffe - Gitterschnittprüfung (ISO/DIS
2409:2010) 2409:2010)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 139.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Croatia, 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 2409:2010: E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN ISO 2409:2010
prEN ISO 2409:2010 (E)
Contents Page
Foreword .3
2
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oSIST prEN ISO 2409:2010
prEN ISO 2409:2010 (E)
Foreword
This document (prEN ISO 2409:2010) 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 document is currently submitted to the parallel Enquiry.
This document will supersede EN ISO 2409:2007.
Endorsement notice
The text of ISO/DIS 2409:2010 has been approved by CEN as a prEN ISO 2409:2010 without any
modification.
3
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oSIST prEN ISO 2409:2010
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oSIST prEN ISO 2409:2010
DRAFT INTERNATIONAL STANDARD ISO/DIS 2409
ISO/TC 35/SC 9 Secretariat: BSI
Voting begins on: Voting terminates on:
2010-04-01 2010-09-01
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Paints and varnishes — Cross-cut test
Peintures et vernis — Essai de quadrillage
[Revision of third edition (ISO 2409:2007)]
ICS 87.040
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.
To expedite distribution, this document is circulated as received from the committee secretariat.
ISO Central Secretariat work of editing and text composition will be undertaken at publication
stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©
International Organization for Standardization, 2010
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oSIST prEN ISO 2409:2010
ISO/DIS 2409
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Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user's country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, photocopying,
recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to either ISO at the address below or ISO's
member body in the country of the requester.
ISO copyright office
Case postale 56 CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
©
ii ISO 2010 – All rights reserved
---------------------- Page: 8 ----------------------
oSIST prEN ISO 2409:2010
ISO/DIS 2409
Contents Page
Foreword .iv
1 Scope.1
2 Normative references.1
3 Apparatus.2
4 Sampling.7
5 Test panels.7
6 Procedure.7
7 Evaluation and expression of results.9
8 Designation .9
9 Precision.11
10 Test report.11
Annex A (informative) Examples for suitable procedures for removing of loose paint .12
A.1 Brushing.12
A.2 Pressure-sensitive adhesive tape.12
A.3 Compressed air or nitrogen .13
Bibliography.14
© ISO 2009 – All rights reserved iii
DRAFT 2010
---------------------- Page: 9 ----------------------
oSIST prEN ISO 2409:2010
ISO/DIS 2409
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 fourth edition cancels and replaces the third edition (ISO 2409:2006) which has been technically revised.
the main changes are:
a) the description of suitable methods for removal of loose paint are transferred to an informative annex as
examples and the adhesive strength of the tape is not specified any more;
b) the original single-blade cutting tool used for cross-cut tests is re-introduced;
c) a specification for the cutting tool used in automated cross-cut apparatus is added;
d) the pictorial standard for classification 2 is corrected to the original picture;
e) examples for coatings on plastics are added to the specification of spacing of cuts;
f) a designation code is introduced;
g) the supplementary test conditions are integrated in the test report;
h) a note is added that the apparatus (manual or motor-driven apparatus) and the variation of the cutting tool
used has an influence on the test result.
iv © ISO 2009 – All rights reserved
DRAFT 2010
---------------------- Page: 10 ----------------------
oSIST prEN ISO 2409:2010
DRAFT INTERNATIONAL STANDARD ISO/DIS 2409
Paints and varnishes — Cross-cut test
1 Scope
This International Standard specifies 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 applied 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 may 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
ISO 13076, Paints and varnishes — Lightning and procedure for visual assessments
© ISO 2009 – All rights reserved 1
DRAFT 2010
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oSIST prEN ISO 2409:2010
ISO/DIS 2409
3 Apparatus
3.1 General
Use ordinary laboratory apparatus, together with the apparatus specified in 3.2 to 3.4.
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 1and 2.
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, which is the more usual method of use, but
the tools may also be mounted on a motor-driven apparatus, which gives a more uniform cutting. The
application of
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