SIST EN 2434-002:2010
(Main)Aerospace series - Paints and varnishes - Two component cold curing polyurethane finish - Part 002: High chemical resistance
- Abstract
This European Standard specifies the requirements for a two component polyurethane finish to be applied over a primer for interior and exterior aerospace applications, where maximum resistance to normal operational fluids is required.
The properties specified in this European Standard are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837 Procedure A and EN 23270 and painted with primer to EN 2435-002. The ability of the material to be used for a specific application (e.g. alternative substrate, alternative primer, specific drying conditions etc.) shall be determined by supplementary tests to confirm that the requirements of this standard are met.
- Status
- Published
- Publication Date
- 02-Nov-2010
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 15-Oct-2010
- Due Date
- 20-Dec-2010
- Completion Date
- 03-Nov-2010
SIST EN 2434-002:2010 is the Slovenski adoption of EN 2434-002:2010, a CEN aerospace standard for a two-component cold-curing polyurethane finish. It specifies the coating requirements for interior and exterior aerospace applications where high resistance to normal operational fluids is needed, and it is intended for coating suppliers, test laboratories, and aerospace users who need a defined product and test basis.
What does SIST EN 2434-002:2010 specify?
SIST EN 2434-002:2010 specifies the requirements for a two-component polyurethane finish applied over a primer for aerospace use. The standard is built around defined test panels and test methods, so the results are tied to a controlled substrate, primer, and curing condition.
| Table | What it covers |
|---|---|
| 1 | General requirements such as material description, formulation, application, designation, and handling-related items |
| 2 | Physical and chemical characteristics, including application behaviour and drying-related properties |
| 3 | Colour and gloss characteristics |
| 4 | Mechanical characteristics such as adhesion, scratch resistance, and slow deformation |
| 5 | Environmental characteristics such as resistance to fluids, water behaviour, and artificial weathering |
Clause 1 sets the scope around application over primer. Clause 2 lists the referenced standards used for testing and preparation. Clause 3 gives the terms used in the document, Clause 4 notes that classification is not applicable, and Clause 5 separates batch release testing from qualification testing.
What are the key requirements of SIST EN 2434-002:2010?
SIST EN 2434-002:2010 is not just a product description - it also defines how the coating is to be prepared, tested, and accepted. In practice, this means the finish must meet the tabled requirements on the specified test system before it can be accepted for release or qualification.
Product form and application conditions
Clause 1 identifies the coating as a two-component cold-curing polyurethane finish made from a base, an activator, and, if required, thinner. The components are mixed in whole-number proportions, by volume or by weight, according to the manufacturer’s instructions. For a user, that means the formulation and mixing practice are part of the controlled product definition, not just a workshop preference.
Clause 1 also ties the finish to a defined dry film thickness and to application over a primer after the primer has dried for a specified period. That matters because the performance claims in the standard are based on the coating system, not on the topcoat alone.
Acceptance and qualification testing
Clause 5 splits testing into two routes. Batch release testing uses only the tests marked with an asterisk in Tables 1 to 5, while qualification requires the full set of tests in those tables. This is important in practice because routine lot acceptance and product approval are not the same thing.
Appearance, handling, and measured properties
Tables 2 and 3 cover items such as visual appearance, sedimentation, pot life, fineness of grind, viscosity, non-volatile matter, VOC content, density, flash point, drying behaviour, colour, and gloss. These are the properties that tell a buyer or laboratory whether the coating can be applied consistently and whether it will look and behave as specified after curing.
Mechanical and environmental performance
Table 4 covers adhesion, scratch resistance, and slow deformation, while Table 5 covers resistance to fluids, water behaviour, and artificial weathering. For users, these are the checks that matter when the finish has to stay intact on aerospace parts exposed to fluids, moisture, and weathering.
Test system used for the specified properties
The properties are demonstrated on aluminium alloy test pieces prepared to EN 3837 Procedure A and EN 23270 and primed with EN 2435-002. That means alternative substrates, primers, or drying conditions need supplementary tests before the standard can be applied to a specific job.
What terms does SIST EN 2434-002:2010 define?
- Gloss finish - A surface finish measured at 60° in EN 3840 test 27 and used here as the standard’s gloss-related reference condition.
- Batch release testing - The subset of tests marked with an asterisk that is used to accept a production batch.
- Qualification tests - The full set of tests in the standard, used to establish that the product meets the specification.
- Two component - A coating supplied as a base and an activator that are mixed before use.
- Activator - The polyisocyanate part of the system that is mixed with the base to form the curing coating.
- VOC content - The volatile organic compound content of the mixed coating, assessed as one of the physical and chemical characteristics.
- Pot life - The usable time after mixing before the coating properties move outside the stated limit.
Who uses SIST EN 2434-002:2010?
SIST EN 2434-002:2010 is used by aerospace coating manufacturers, paint formulators, test laboratories, and quality assurance teams. It is also relevant to buyers and specifiers who need to define a finish for interior or exterior aerospace parts where resistance to operational fluids is a key requirement.
Which standards are used with SIST EN 2434-002:2010?
- EN 2334 - Defines chromic-sulphuric acid pickling of aluminium and aluminium alloys used in the test preparation chain.
- EN 2379 - Provides the fluids used for assessing non-metallic materials, including the fluid resistance tests.
- EN 2435-002 - Specifies the primer used under this finish in the standard test system.
- EN 3837 - Defines surface preparation of aluminium-alloy test pieces.
- EN 3840 - Supplies the technical specification and the referenced test methods used throughout the tables.
- EN 4385 - Gives the general organisation of standardisation for aerospace non-metallic materials.
- EN 7000-9 - Provides the rules for drafting and presentation of paint and varnish material standards, including subcase numbering.
- EN ISO 1513 - Covers examination and preparation of samples for testing.
- EN ISO 3696 - Specifies laboratory water used for the water-behaviour test.
- EN 23270 - Is used in the conditioning and test context for the defined test pieces.
What does the SIST EN 2434-002:2010 document contain?
The document contains a short scope, a reference list, terms, a classification note, and the batch release and qualification testing rule set. Its main technical content is in Tables 1 to 5, which group the general, physical, physico-chemical, mechanical, and environmental requirements.
It also points to the test methods in EN 3840 and identifies the defined substrate, surface preparation, primer, and conditioning used to generate the specified properties. In practice, the document is a requirements-and-test standard for qualifying and accepting a high chemical resistance aerospace topcoat system.
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
SIST EN 2434-002:2010 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Paints and varnishes - Two component cold curing polyurethane finish - Part 002: High chemical resistance". This standard covers: This European Standard specifies the requirements for a two component polyurethane finish to be applied over a primer for interior and exterior aerospace applications, where maximum resistance to normal operational fluids is required. The properties specified in this European Standard are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837 Procedure A and EN 23270 and painted with primer to EN 2435-002. The ability of the material to be used for a specific application (e.g. alternative substrate, alternative primer, specific drying conditions etc.) shall be determined by supplementary tests to confirm that the requirements of this standard are met.
This European Standard specifies the requirements for a two component polyurethane finish to be applied over a primer for interior and exterior aerospace applications, where maximum resistance to normal operational fluids is required. The properties specified in this European Standard are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837 Procedure A and EN 23270 and painted with primer to EN 2435-002. The ability of the material to be used for a specific application (e.g. alternative substrate, alternative primer, specific drying conditions etc.) shall be determined by supplementary tests to confirm that the requirements of this standard are met.
SIST EN 2434-002:2010 is classified under the following ICS (International Classification for Standards) categories: 49.040 - Coatings and related processes used in aerospace industry. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 2434-002:2010 has the following relationships with other standards: It is inter standard links to SIST EN ISO 3696:1998, SIST EN 2334:2001, SIST EN ISO 1513:2011, SIST EN 2435-002:2009, SIST EN 3840:2009, SIST EN 23270:1997, SIST EN 4588:2009, SIST EN 4406:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 2434-002:2010 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Beschichtungsstoffe - Zweikomponenten, Polyurethan-Decklack, Kalthärtend - Teil 002: Hohe Beständigkeit gegen ChemikalienSérie aérospatiale - Peintures et vernis - Peinture de finition polyuréthane, à deux composants polymérisant à température ambiante - Partie 002: Tenue chimiques aux fluidesAerospace series - Paints and varnishes - Two component cold curing polyurethane finish - Part 002: High chemical resistance49.040Prevleke in z njimi povezani postopki, ki se uporabljajo v letalski in vesoljski industrijiCoatings and related processes used in aerospace industryICS:Ta slovenski standard je istoveten z:EN 2434-002:2010SIST EN 2434-002:2010en,de01-december-2010SIST EN 2434-002:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2434-002
September 2010 ICS 49.040 English Version
Aerospace series - Paints and varnishes - Two component cold curing polyurethane finish - Part 002: High chemical resistance Série aérospatiale - Peintures et vernis - Peinture de finition polyuréthane, à deux composants polymérisant à température ambiante - Partie 002: Tenue chimiques aux fluides
Luft- und Raumfahrt - Beschichtungsstoffe - Zweikomponenten- Polyurethan-Decklack, kalthärtend - Teil 002: Hohe Beständigkeit gegen Chemikalien This European Standard was approved by CEN on 6 February 2010.
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 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 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.
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B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2434-002:2010: ESIST EN 2434-002:2010
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