EN 927-10:2019
(Main)Paints and varnishes - Coating materials and coating systems for exterior wood - Part 10: Resistance to blocking of paints and varnishes on wood
Paints and varnishes - Coating materials and coating systems for exterior wood - Part 10: Resistance to blocking of paints and varnishes on wood
This document specifies a test method for determining, under specified optional conditions, whether a single-coat film or a multi-coat system of paints and varnishes on wood after a specified drying period is sufficiently dry to avoid damage when two painted surfaces or one painted surface and another surface are placed in contact under pressure and subsequently separated. The method is intended to simulate the conditions when painted articles come into contact which each other. In comparison to EN ISO 9117-2, the conditioning and parameters which influence the behaviour of wood coatings are more specific.
NOTE In some countries, the test is called a "block or blocking resistance" test.
Beschichtungsstoffe - Beschichtungsstoffe und Beschichtungssysteme für Holz im Außenbereich - Teil 10: Bestimmung der Blockfestigkeit von Beschichtungsstoffen und Beschichtungssystemen für Holz
Diese Europäische Norm legt ein Prüfverfahren, unter Normbedingungen, zur Bestimmung, ob ein Ein- oder Mehrschichtsystem von Beschichtungsstoffen auf Holz nach einer festgelegten Trocknungsdauer ausreichend trocken ist, um Beschädigungen zu vermeiden, wenn zwei beschichtete Flächen oder eine beschichtete Fläche und eine andere Fläche unter Druck Kontakt miteinander haben und danach getrennt werden, fest. Das Verfahren ist dafür vorgesehen, die Bedingungen, wenn beschichtete Gegenstände miteinander Kontakt haben, zu simulieren. Im Vergleich zu EN ISO 9117 2 sind die Konditionierung und die Parameter, die das Leistungsverhalten von Holzbeschichtungen beeinflussen, spezifischer.
ANMERKUNG In einigen Ländern wird die Prüfung "Blockfestigkeitsprüfung" genannt.
Peintures et vernis - Produits de peinture et systèmes de peinture pour le bois en extérieur - Partie 10 : Résistance au blocage des peintures et vernis sur bois
La présente Norme européenne spécifie une méthode d’essai permettant de déterminer, dans les conditions normales, si un feuil monocouche ou un système multi-couches de peintures et vernis sur bois, après une durée spécifiée de séchage, est suffisamment sec pour ne pas être endommagé lorsque deux surfaces peintes ou une surface peinte et une autre surface sont placées en contact sous pression avant d’être séparées. La méthode est destinée à simuler les conditions auxquelles sont soumis des articles peints lorsqu’ils entrent en contact les uns avec les autres. Comparé à l’EN ISO 9117 2, le conditionnement et les paramètres qui influencent le comportement des revêtements pour bois sont plus spécifiques.
NOTE Dans certains pays, l’essai est appelé « essai de résistance au blocage » ou « essai de résistance à l’adhérence ».
Barve in laki - Premazi in premazni sistemi za zaščito lesa za zunanjo uporabo - 10. del: Odpornost filmov premazov proti medsebojnemu zlepljanju
Ta evropski standard določa metodo preskusa za določanje, pri standardnih pogojih, ali se enojni film ali večplastni sistem barv in lakov za les po določenem času sušenja dovolj posušijo, da se lahko izognemo škodi, ko sta dve pobarvani ploskvi ali ena pobarvana ploskev in druga ploskev v stiku pod tlakom in naknadno ločeni. Ta metoda je namenjena simulaciji pogojev, ko so pobarvani izdelki v stiku drug z drugim. V primerjavi s standardom EN ISO 9117 2 sta priprava in podatki, ki vplivajo na vedenje premazov za les, bolj specifični.
OPOMBA: V nekaterih državah se preskus imenuje preskus »odpornosti proti zlepljenju«.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2019
Nadomešča:
SIST-TS CEN/TS 16499:2014
Barve in laki - Premazi in premazni sistemi za zaščito lesa za zunanjo uporabo - 10.
del: Odpornost filmov premazov proti medsebojnemu zlepljanju
Paints and varnishes - Coating materials and coating systems for exterior wood - Part
10: Resistance to blocking of paints and varnishes on wood
Beschichtungsstoffe - Beschichtungsstoffe und Beschichtungssysteme für Holz im
Außenbereich - Bestimmung der Blockfestigkeit
Peintures et vernis - Produits de peinture et systèmes de peinture pour le bois en
extérieur - Résistance au blocage des peintures et vernis sur bois
Ta slovenski standard je istoveten z: EN 927-10:2019
ICS:
71.100.50 Kemikalije za zaščito lesa Wood-protecting chemicals
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 927-10
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2019
EUROPÄISCHE NORM
ICS 87.040 Supersedes CEN/TS 16499:2013
English Version
Paints and varnishes - Coating materials and coating
systems for exterior wood - Part 10: Resistance to blocking
of paints and varnishes on wood
Peintures et vernis - Produits de peinture et systèmes Beschichtungsstoffe - Beschichtungsstoffe und
de peinture pour le bois en extérieur - Partie 10 : Beschichtungssysteme für Holz im Außenbereich - Teil
Résistance au blocage des peintures et vernis sur bois 10: Bestimmung der Blockfestigkeit von
Beschichtungsstoffen und Beschichtungssystemen für
Holz
This European Standard was approved by CEN on 16 December 2018.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 927-10:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 6
5 Apparatus . 6
6 Sampling . 7
7 Substrates . 7
7.1 General . 7
7.2 Substrate s1 – Spruce . 7
7.3 Substrate s2 – Other wood species . 8
7.4 Substrate s3 – Inert substrate . 8
7.5 Substrate s4 – Other plane substrates . 8
8 Application . 9
8.1 General . 9
8.2 Application to substrate s1 – spruce, s2 – other wood substrates, or substrate s4 -
other plane substrates . 9
8.3 Application to substrate s3 – inert substrate or substrate s4 - other plane substrates . 10
8.4 Typical dry film thickness on stable wood constructions . 10
9 Drying time . 10
10 Preparation of test strips and specimen . 10
10.1 General . 10
10.2 Determination of the dry film thickness . 11
11 Conditioning of test strips . 11
12 Application of load . 11
12.1 General . 11
12.2 Load to be applied . 12
12.3 Climatic conditions during loading . 13
13 Evaluation . 14
14 Precision . 15
15 Test report . 15
Annex A (normative) Necessary additional information . 16
Annex B (informative) Suggested form for specifying application parameters . 17
B.1 General . 17
B.2 Specifying complete coating systems . 17
B.3 Equipment . 17
B.4 Process . 17
B.5 Spreading rate. 17
B.6 Flash-off . 17
B.7 Drying and curing . 18
B.8 Overcoating intervals . 18
B.9 Sanding . 18
B.10 Examples for specifying application parameters. 18
Bibliography . 22
European foreword
This document (EN 927-10:2019) has been prepared by 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 2019, and conflicting national standards
shall be withdrawn at the latest by November 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TS 16499:2013.
According to the CEN-CENELEC Internal Regulations, the national standards organisations 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Scope
This document specifies a test method for determining, under specified optional conditions, whether a
single-coat film or a multi-coat system of paints and varnishes on wood after a specified drying period is
sufficiently dry to avoid damage when two painted surfaces or one painted surface and another surface
are placed in contact under pressure and subsequently separated. The method is intended to simulate
the conditions when painted articles come into contact which each other. In comparison to
EN ISO 9117-2, the conditioning and parameters which influence the behaviour of wood coatings are
more specific.
NOTE In some countries, the test is called a “block or blocking resistance” test.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 927-1, Paints and varnishes - Coating materials and coating systems for exterior wood - Part 1:
Classification and selection
EN ISO 1513, Paints and varnishes - Examination and preparation of test samples (ISO 1513)
EN ISO 2808, Paints and varnishes - Determination of film thickness (ISO 2808)
EN ISO 15528, Paints, varnishes and raw materials for paints and varnishes - Sampling (ISO 15528)
ISO 554, Standard atmospheres for conditioning and/or testing - Specifications
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
blocking
unwanted adhesion between two surfaces, at least one of which has been coated, when they are left in
contact under load after a given drying period
Note 1 to entry: Blocking does not apply to bonding of coated surfaces after insufficient drying.
Note 2 to entry: In practice, blocking can occur if coated wood panels are stacked on each other or on windows
and doors if the frames are in direct contact with the faces. Blocking depends on temperature and load (pressure).
Note 3 to entry: The term blocking is also sometimes used to describe agglomerated caked powder.
Note 4 to entry: Unwanted adhesion can lead to damage upon separation.
[SOURCE: EN ISO 4618:2014, 2.30, modified – added Notes to entry.]
3.2
load
mass needed to achieve a suitable test pressure
Note 1 to entry: High temperature and humidity increase the stress at a given load. The application method, film
thickness, drying conditions and climatic conditions should also be taken into account.
3.3
after tack
property of a film to remain sticky after normal drying or curing
Note 1 to entry: The term after tack can also mean a subjectively stickiness of the surfac
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