CEN/TS 16700:2014

SLOVENSKI STANDARD
01-november-2014
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Paints and varnishes - Coating materials and coating systems for exterior wood -
Assessment of resistance to impact of a coating on a wooden substrate
Beschichtungsstoffe - Beschichtungsstoffe und Beschichtungssysteme für Holz im
Außenbereich - Beurteilung der Schlagfestigkeit einer Beschichtung auf Holzsubstrat
Peintures et vernis - Produits de peinture et systèmes de revêtements pour le bois en
extérieur - Evaluation de la résistance au choc d'un revêtement sur un subjectile en bois
Ta slovenski standard je istoveten z: CEN/TS 16700:2014
ICS:
71.100.50 .HPLNDOLMH]D]DãþLWROHVD 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.

TECHNICAL SPECIFICATION
CEN/TS 16700
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
August 2014
ICS 87.040
English Version
Paints and varnishes - Coating materials and coating systems
for exterior wood - Assessment of resistance to impact of a
coating on a wooden substrate
Peintures et vernis - Produits de peinture et systèmes de Beschichtungsstoffe - Beschichtungsstoffe und
revêtements pour le bois en extérieur - Evaluation de la Beschichtungssysteme für Holz im Außenbereich -
résistance au choc d'un revêtement sur un subjectile en Beurteilung der Schlagfestigkeit einer Beschichtung auf
bois Holzusubstrat
This Technical Specification (CEN/TS) was approved by CEN on 17 May 2014 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 16700:2014 E
worldwide for CEN national Members.

Contents Page
Foreword .3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .5
4 Principle .6
5 Apparatus and materials .6
6 Procedure .7
6.1 Wood panels .7
6.2 Coating application.7
6.3 Assessment of resistance to impact .7
6.3.1 General .7
6.3.2 Impact test .8
6.3.3 Examination of test panel .8
6.3.4 Assessment of results .8
7 Test report . 10
Bibliography . 11

Foreword
This document (CEN/TS 16700:2014) has been prepared by Technical Committee CEN/TC 139 “Paints and
Varnishes”, the secretariat of which is held by DIN.
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.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Specification: 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.
Introduction
During the use coated wood surfaces are exposed to various impacts. A suitable resistance of a coating on
wood to impact is of importance to keep the substrate further protected with intact coating without cracks or
flakes. The simple method described in this document provides quick information if a coating on wood is
capable to withstand impacts without cracks or not. A similar method exists in ISO 4211-4 for furniture
surfaces in interior use but in the present document the procedure is adopted and description of a carefully
selected substrate is added to enable testing of coating materials and coating systems for exterior wood. The
method should preferably be used on coatings that have not been exposed to weathering but it may also be
applied after ageing of the coating or under different climatic conditions to gain additional experience.
1 Scope
This Technical Specification specifies a test method for assessing the resistance of a coating to impact on a
defined and carefully selected wooden substrate for coatings on wood components in exterior use.
The method is preferably used on coatings that have not been exposed to weathering. The method is suitable
for use either as a means of comparing different coating systems or as a quality control test to ensure that a
specified performance level is being achieved or maintained.
The nature of the substrate will have a major effect on the results obtained in the test. Therefore use of any
other substrate than the one specified should be clearly stated in the test report.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 554, Standard atmospheres for conditioning and/or testing — Specifications
ISO 3131, Wood — Determination of density for physical and mechanical tests
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
coating
layer formed from a single or multiple application of a coating material to a substrate
[SOURCE: FprEN ISO 4618:2014, 2.50.1]
3.2
impact resistance
ability of a coating to resist deformation from a sudden blow without damage
3.3
cracking
rupturing of a dry film or coat
[SOURCE: FprEN ISO 4618:2014, 2.65, modified — Notes have been left o
...