EN ISO 6927:2021

SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN ISO 6927:2012
Tesnilne mase za stavbe in gradbene inženirske objekte - Slovar (ISO 6927:2021)
Buildings and civil engineering sealants - Vocabulary (ISO 6927:2021)
Dichtstoffe im Hoch- und Tiefbau - Begriffe (ISO 6927:2021)
Mastics pour le bâtiment et le génie civil - Vocabulaire (ISO 6927:2021)
Ta slovenski standard je istoveten z: EN ISO 6927:2021
ICS:
01.040.91 Gradbeni materiali in gradnja Construction materials and
(Slovarji) building (Vocabularies)
91.100.50 Veziva. Tesnilni materiali Binders. Sealing materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 6927
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2021
EUROPÄISCHE NORM
ICS 01.040.91; 91.100.50 Supersedes EN ISO 6927:2012
English Version
Buildings and civil engineering sealants - Vocabulary (ISO
6927:2021)
Mastics pour le bâtiment et le génie civil - Vocabulaire Bauwesen - Dichtstoffe - Begriffe (ISO 6927:2021)
(ISO 6927:2021)
This European Standard was approved by CEN on 8 November 2020.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6927:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 6927:2021) has been prepared by Technical Committee ISO/TC 59 "Buildings
and civil engineering works" in collaboration with Technical Committee CEN/SS B02 “Structures” the
secretariat of which is held by CCMC.
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 October 2021, and conflicting national standards shall
be withdrawn at the latest by October 2021.
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 EN ISO 6927:2012.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 6927:2021 has been approved by CEN as EN ISO 6927:2021 without any modification.

INTERNATIONAL ISO
STANDARD 6927
Third edition
2021-03
Building and civil engineering
sealants — Vocabulary
Mastics pour le bâtiment et le génie civil — Vocabulaire
Reference number
ISO 6927:2021(E)
©
ISO 2021
ISO 6927:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
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Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO 6927:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Sealant classification . 1
3.2 Ancillary materials . 2
3.3 Rheology . 3
3.4 Application . 4
3.5 Physical properties . 5
3.6 Failure . 7
3.7 Durability/aesthetics . 8
Bibliography .10
ISO 6927:2021(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 59, Buildings and civil engineering works,
Subcommittee SC 8, Sealants, in collaboration with the European Committee for Standardization
(CEN) Technical Committee CEN/SS B02, Structures, in accordance with the Agreement on technical
cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 6927:2012), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— modified the title;
— added important terminology for the property of the sealant to reflect the progress of the sealant
technology.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved

INTERNATIONAL STANDARD ISO 6927:2021(E)
Building and civil engineering sealants — Vocabulary
1 Scope
This document defines technical terms for self-levelling and gun-grade (gunnable) sealants for above-
ground exposed structures.
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.
ISO 11600, Building construction — Jointing products — Classification and requirements for sealants
3 Terms and definitions
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1 Sealant classification
3.1.1
seal
install the appropriate products in the joint (3.2.15) between components in order to prevent the
penetration of water, moisture and/or air between the elements, components and assemblies made of
the same or dissimilar materials
3.1.2
sealant
text material applied in an unformed state which, once cured (3.4.7) or dried, has the adhesive and
cohesive properties to seal (3.1.1) a joint (3.2.15)
3.1.3
elastic sealant
sealant (3.1.2) in which the stresses (3.5.8) induced as a result of joint (3.2.15) movement are nearly
proportional to the strain (3.5.7)
Note 1 to entry: The elastic behaviour of the sealant is evaluated by the elastic recovery (3.5.10) measurement
(see ISO 7389).
3.1.4
plastic sealant
sealant (3.1.2) in which the stresses (3.5.8) induced as a result of joint (3.2.15) movement are nearly
proportional to the rate of joint movement and are rapidly relieved when joint movement ceases
Note 1 to entry: The plastic behaviour of the sealant is evaluated by the elastic recovery (3.5.10) measurement
(see ISO 7389).
3.1.5
one component sealant
sealant (3.1.2) ready for use not requiring mixing
ISO 6927:2021(E)
3.1.6
multi-component sealant
sealant (3.1.2) supplied in the form of multiple separate components which become ready for use after
mixing together
3.1.7
solvent-release sealant
sealant (3.1.2) supplied in the form of a suspension or solution in an organic solvent and which cures
(3.4.7) mainly by evaporation of solvent
3.1.8
water-borne sealant
water-based sealant
sealant (3.1.2) supplied in the form of a dispersion in which water is the main carrier and which cures
(3.4.7) mainly by evaporation of water
Note 1 to entry: Water-borne sealants are sometimes referred to as water-based sealants. The term “water-
based” is deprecated.
3.1.9
low-modulus sealant
2 2
sealant (3.1.2) with a secant tensile modulus (3.5.9) < 0,4 N/mm at 23 °C and < 0,6 N/mm at −20 °C
Note 1 to entry: Low-modulus sealants/High-modulus sealants shall be in accordance with ISO 11600.
3.1.10
high-modulus sealant
2 2
sealant (3.1.2) with a secant tensile modulus (3.5.9) > 0,4 N/mm at +23 °C or > 0,6 N/mm at −20 °C
Note 1 to entry: Low-modulus sealants/High-modulus sealants shall be in accordance with ISO 11600.
3.1.11
self-levelling sealant
sealant (3.1.2) that exhibits sufficient flow to achieve gravitational levelling
3.1.12
gun-grade sealant
sealant (3.1.2) suitable to extrude through the nozzle of a hand- or power-operated device
3.1.13
non-sag sealant
sealant (3.1.2) with minimal flow when applied in vertical or inverted joints
...