SIST EN ISO 2812-2:2019

Paints and varnishes - Determination of resistance to liquids - Part 2: Water immersion method (ISO 2812-2:2018)

This document specifies a method for determining the resistance of an individual-layer or multi-layer system of coating materials to the effects of water by partial or full immersion.
This method enables the determination of the effects of water on the coating and, if necessary, the assessment of the damage to the substrate.

Beschichtungsstoffe - Bestimmung der Beständigkeit gegen Flüssigkeiten - Teil 2: Verfahren mit Eintauchen in Wasser (ISO 2812-2:2018)

Dieses Dokument legt ein Verfahren zum Bestimmen der Beständigkeit einer einzelnen Schicht oder eines Mehrschichtsystems aus Beschichtungsstoffen gegen die Einwirkung von Wasser durch teilweises oder voll¬ständiges Eintauchen fest.
Dieses Verfahren ermöglicht es, die Wirkung von Wasser auf die Beschichtung und, falls notwendig, die Schädigung des Substrates zu beurteilen.

Peintures et vernis - Détermination de la résistance aux liquides - Partie 2: Méthode par immersion dans l'eau (ISO 2812-2:2018)

Le présent document spécifie une méthode de détermination de la résistance d'un système de revêtement monocouche ou multicouche à l'action de l'eau en immersion totale ou partielle.
Cette méthode permet d'évaluer l'action de l'eau sur le revêtement et, si nécessaire, d'évaluer la détérioration du subjectile.

Barve in laki - Ugotavljanje odpornosti proti tekočinam - 2. del: Metoda s potapljanjem v vodo (ISO 2812-2:2018)

Ta dokument določa metodo za ugotavljanje odpornosti posamezne plasti ali večplastnih
sistemov premazov proti učinkom vode z delnim ali popolnim potapljanjem.
Ta metoda omogoča ugotavljanje učinkov vode na premaz in po potrebi
oceno škode na podlagi.

General Information

• Status: Published
• Public Enquiry End Date: 30-Sep-2017
• Publication Date: 28-Jan-2019
• ICS: 87.040 - Paints and varnishes
• Technical Committee: IBLP - Paints and varnishes
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Jan-2019
• Due Date: 16-Mar-2019
• Completion Date: 29-Jan-2019
• Ref Project: EN ISO 2812-2:2018 - Paints and varnishes - Determination of resistance to liquids - Part 2: Water immersion method (ISO 2812-2:2018)

Relations

• Replaces: SIST EN ISO 2812-2:2007 - Paints and varnishes - Determination of resistance to liquids - Part 2: Water immersion method (ISO 2812-2:2007)
• Effective Date: 01-Mar-2019

Overview

SIST EN ISO 2812-2:2019 titled "Paints and varnishes - Determination of resistance to liquids - Part 2: Water immersion method" is an internationally recognized European standard developed by CEN in collaboration with ISO Technical Committee ISO/TC 35. This standard specifies a reliable laboratory method for assessing the resistance of both single-layer and multi-layer coating systems to water exposure through partial or full immersion testing. The standard provides a systematic approach to measure how coatings withstand water-induced degradation and, where applicable, evaluates any resultant damage to the substrate beneath the coating.

This updated 2018 version supersedes the 2007 edition with key technical revisions, improving the accuracy and applicability of water immersion testing in paints and varnishes quality assurance. It is widely adopted across Europe and aligned with ISO's international framework, ensuring consistency and comparability in coating performance testing.

Key Topics

• Scope and Purpose
  Defines a standardized method for evaluating water resistance of coatings by immersing coated test panels in water and monitoring the effects based on predefined criteria.

• Test Panels and Sample Preparation
  Specifies use of polished steel panels sized typically 150 mm x 100 mm x 0.7–1.0 mm, coated on one or both sides depending on testing agreements. Panels are dried, conditioned, and may be subjected to artificial damage like scribes or scrapes for corrosion impact studies.

• Apparatus Requirements
  Mandates use of inert materials for any device in contact with water, with apparatus including a thermostatically controlled tank, circulation and aeration systems, and supports for test panels at an angle of 0° to 20° to the vertical.

• Testing Procedure
  Panels can be partially (three-quarters length) or fully immersed in water maintained at 40 ± 2 °C, with water quality meeting ISO 3696 grade 3 specifications. Continuous water circulation and aeration ensure uniform test conditions.

• Evaluation Criteria
  Visual and subjective assessments of coating changes such as blistering, discolouration, or substrate degradation are carried out during interim and final inspections to determine resistance level.

• Relevant Definitions and Normative References
  Incorporates terms defined in ISO 4618 and references related ISO standards covering paint sampling, film thickness measurement (ISO 2808), scribing methods (ISO 17872), and cathodic disbonding resistance testing (ISO 15711).

Applications

• Quality Control in Paint and Coating Manufacturing
  Used by manufacturers to verify coating formulations meet water resistance requirements, ensuring product durability.

• Construction and Infrastructure Coatings
  Applicable for assessing protective paints used on steel and metal substrates exposed to moisture or submerged conditions such as bridges, pipelines, and marine structures.

• Automotive and Transportation Industry
  Useful for evaluating water resistance of automotive paints and protective varnishes, contributing to corrosion protection and appearance retention.

• Research and Development
  Enables R&D teams to compare coating systems objectively and optimize formulations for enhanced water resistance.

• Regulatory Compliance and Certification
  Supports compliance with industry standards requiring demonstration of liquid resistance, aiding product registration and certification processes.

Related Standards

• ISO 1513 – Examination and preparation of test samples for paints and varnishes.
• ISO 1514 – Standard panels for testing paints and varnishes.
• ISO 2808 – Measuring the dry film thickness of coatings.
• ISO 3696 – Specification for purified water used in analytical laboratories.
• ISO 4618 – Terms and definitions related to paints and varnishes.
• ISO 4628-2 – Evaluation of coating degradation, specifically blistering assessment.
• ISO 15711 – Resistance to cathodic disbonding of coatings in sea water.
• ISO 17872 – Guidelines for scribe mark introduction for coating corrosion tests.

---

By following SIST EN ISO 2812-2:2019, industry professionals can reliably determine the water resistance performance of coatings, thus enhancing product longevity and maintaining structural integrity in aqueous environments. This method is an essential part of coating evaluation, helping users make informed decisions about coating selection for specific environmental conditions.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2019
1DGRPHãþD
SIST EN ISO 2812-2:2007
%DUYHLQODNL8JRWDYOMDQMHRGSRUQRVWLSURWLWHNRþLQDPGHO0HWRGDV
SRWDSOMDQMHPYYRGR,62
Paints and varnishes - Determination of resistance to liquids - Part 2: Water immersion
method (ISO 2812-2:2018)
Beschichtungsstoffe - Bestimmung der Beständigkeit gegen Flüssigkeiten - Teil 2:
Verfahren mit Eintauchen in Wasser (ISO 2812-2:2018)
Peintures et vernis - Détermination de la résistance aux liquides - Partie 2: Méthode par
immersion dans l'eau (ISO 2812-2:2018)
Ta slovenski standard je istoveten z: EN ISO 2812-2:2018
ICS:
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 2812-2
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2018
EUROPÄISCHE NORM
ICS 87.040 Supersedes EN ISO 2812-2:2007
English Version
Paints and varnishes - Determination of resistance to
liquids - Part 2: Water immersion method (ISO 2812-
2:2018)
Peintures et vernis - Détermination de la résistance Beschichtungsstoffe - Bestimmung der Beständigkeit
aux liquides - Partie 2: Méthode par immersion dans gegen Flüssigkeiten - Teil 2: Verfahren mit Eintauchen
l'eau (ISO 2812-2:2018) in Wasser (ISO 2812-2:2018)
This European Standard was approved by CEN on 2 November 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2812-2:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 2812-2:2018) 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 June 2019, and conflicting national standards shall be
withdrawn at the latest by June 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 EN ISO 2812-2:2007.
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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 2812-2:2018 has been approved by CEN as EN ISO 2812-2:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 2812-2
Third edition
2018-11
Paints and varnishes — Determination
of resistance to liquids —
Part 2:
Water immersion method
Peintures et vernis — Détermination de la résistance aux liquides —
Partie 2: Méthode par immersion dans l'eau
Reference number
ISO 2812-2:2018(E)
©
ISO 2018
ISO 2812-2:2018(E)
© ISO 2018
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
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO 2812-2:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Sampling . 2
7 Test panels . 2
7.1 Materials and dimensions . 2
7.2 Preparation and coating . . 2
7.3 Drying and conditioning . 2
7.4 Artificial damaging . 2
7.5 Coating thickness . 3
8 Procedure. 3
8.1 Number of determinations . 3
8.2 Determination . 3
9 Evaluation . 3
9.1 Interim inspections . 3
9.2 Final inspection . 3
10 Precision . 4
11 Test report . 4
ISO 2812-2:2018(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 accor
...