SIST EN 2434-003:2010
(Main)Aerospace series - Paints and varnishes - Two component cold curing polyurethane finish - Part 003: Flexible and high fluid resistance for interior
- Abstract
This European Standard specifies the requirements for a two component polyurethane finish, in a limited range of colours, to be applied over a primer for interior aerospace applications, offering flexibility and high resistance to fluid attack.
The properties specified in this European Standard are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837 and EN 23270 and painted with primer to prEN 2435-03. 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
- 07-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
- 08-Nov-2010
SIST EN 2434-003:2010 is the Slovenian adoption of EN 2434-003:2010, published by SIST for aerospace coatings. It specifies a two-component, cold-curing polyurethane finish for interior aerospace use, in a limited range of colours, applied over a primer where flexibility and high resistance to fluid attack are needed. The document is written for manufacturers, test laboratories, and aerospace users who need a defined material specification and the related acceptance tests.
What does SIST EN 2434-003:2010 specify?
SIST EN 2434-003:2010 specifies the requirements for an interior aerospace polyurethane finish and the test conditions used to verify them. The standard is organized into scope, normative references, terms and definitions, classification, and batch release and qualification testing, with the detailed requirements set out in Tables 1 to 5.
The introduction identifies SIST EN 2434-003:2010 as a level 3 document in the EN 4385 aerospace non-metallic materials structure. It also notes that the subcase numbering used in Tables 2 to 5 follows EN 7000-9, which matters when reading the test tables and matching requirements to inspection records.
What are the key requirements of SIST EN 2434-003:2010?
SIST EN 2434-003:2010 defines both the material makeup and the test program. In practice, that means the finish, its mix components, the substrate preparation, and the acceptance checks are all tied together, so a supplier cannot treat the coating as just a paint description.
Material form and mixing - Table 1 describes a two-component cold-curing polyurethane coating made from a base, an activator, and, if needed, a thinner. The components are mixed in simple whole-number proportions according to the manufacturer’s instructions, which is important for consistent cure and application behavior.
Test-piece preparation - The scope and Tables 2 to 5 require defined aluminium alloy test pieces prepared to EN 3837 and EN 23270 and primed with EN 2435-003. This matters because qualification results are only valid when the test panel preparation matches the standard’s method.
Batch release versus qualification - Clause 5 separates routine acceptance from product qualification. Batch release uses the tests marked with an asterisk in Tables 1 to 5, while qualification requires all tests in the standard, so buyers and quality teams can distinguish production control from full approval.
Processing and appearance checks - Table 2 covers sample condition, application properties, sedimentation, pot life, viscosity, non-volatile matter, VOC content, density, flash point, and drying times. These checks show whether the coating remains usable after mixing and whether it forms a smooth, defect-free film within the intended process window.
Colour and gloss - Table 3 covers colour and 60° gloss, and the term section defines a gloss finish as a high-gloss surface measured at 60°. For users, this means the finish is not only functional but also visually controlled to match the specified appearance.
Mechanical performance - Table 4 covers adhesion, scratch resistance, bend performance, impact resistance, and slow deformation. These tests show whether the coating stays attached and intact when the finished part is handled, flexed, or struck.
Environmental resistance - Table 5 covers heat, cold, humidity, resistance to fluids, and water behaviour. Several tests use scribed panels, which helps reveal whether the coating protects the primer and substrate after exposure.
Application limits - The scope states that suitability for alternative substrates, alternative primers, or different drying conditions must be confirmed by supplementary tests. That is important when a user wants to apply the finish outside the defined reference conditions.
What terms does SIST EN 2434-003:2010 define?
- Gloss finish - A finish with gloss of at least 80 units measured at 60° according to EN 3840 Test 27.
- Base - The coating component containing hydroxyl functional resin, solvents, and pigments.
- Activator - The polyisocyanate solution mixed with the base to form the curing system.
- Thinner - An optional component added when the manufacturer requires adjustment of application properties.
- Batch release testing - The subset of starred tests used to accept a production batch.
- Qualification tests - The full set of tests in the standard, used to qualify the product for use.
Who uses SIST EN 2434-003:2010?
SIST EN 2434-003:2010 is used by aerospace coating manufacturers, paint formulators, and coating applicators who need a controlled interior finish system. It is also used by quality control laboratories for batch acceptance and qualification testing, and by aerospace buyers or specification writers who need to state a defined finish for primed interior parts.
Which standards are used with SIST EN 2434-003:2010?
- EN 2334 - Gives the chromic-sulphuric acid pickle process for aluminium and aluminium alloys.
- EN 2435-003 - Specifies the corrosion-resistant chromated primer used under this finish.
- EN 2379 - Identifies the fluids used for resistance assessment.
- EN 3837 - Sets the surface preparation method for aluminium alloy test pieces.
- EN 3840 - Provides the technical specification framework and the test methods referenced throughout the tables.
- EN 4385 - Defines the general organization of aerospace non-metallic materials standards.
- EN 7000-9 - Gives drafting and presentation rules, including the subcase numbering used here.
- EN ISO 1513 - Covers sample examination and preparation for testing.
- EN ISO 3696 - Specifies the water quality used for analytical laboratory work.
- EN 23270 - Sets conditioning and testing temperatures and humidities.
What does the SIST EN 2434-003:2010 document contain?
The document contains a material description and a set of structured requirement tables. Tables 1 to 5 cover general requirements, physical and chemical characteristics, physico-chemical characteristics, mechanical characteristics, and environmental characteristics.
It also contains the test conditions and acceptance checks for appearance, curing behavior, adhesion, flexibility, impact, heat, cold, humidity, and resistance to fluids and water. The tables tie each property to a test method and a defined test-piece preparation route, which is what makes the standard useful for specification writing, laboratory testing, and product qualification.
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
- Effective Date
- 28-Jan-2026
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Frequently Asked Questions
SIST EN 2434-003:2010 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 003: Flexible and high fluid resistance for interior". This standard covers: This European Standard specifies the requirements for a two component polyurethane finish, in a limited range of colours, to be applied over a primer for interior aerospace applications, offering flexibility and high resistance to fluid attack. The properties specified in this European Standard are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837 and EN 23270 and painted with primer to prEN 2435-03. 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, in a limited range of colours, to be applied over a primer for interior aerospace applications, offering flexibility and high resistance to fluid attack. The properties specified in this European Standard are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837 and EN 23270 and painted with primer to prEN 2435-03. 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 2434-003:2010 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 2434-003:2010 has the following relationships with other standards: It is inter standard links to SIST EN ISO 1513:2011, SIST EN 3840:2009, SIST EN 23270:1997, SIST EN 2334:2001, SIST EN ISO 3696:1998, SIST EN 4588:2009, SIST EN 2435-003:2009, SIST EN 2436-003:2009, SIST EN 4406:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 2434-003:2010 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 003: Elastisch und medienbeständig für InnenSérie aérospatiale - Peintures et vernis - Peinture de finition polyuréthane, à deux composants polymérisant à température ambiante - Partie 003: Flexibilité et haute résistance aux fluides pour application en intérieurAerospace series - Paints and varnishes - Two component cold curing polyurethane finish - Part 003: Flexible and high fluid resistance for interior49.040Prevleke 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 2434-003:2010SIST EN 2434-003:2010en,de01-december-2010SIST EN 2434-003:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2434-003
September 2010 ICS 49.040 English Version
Aerospace series - Paints and varnishes - Two component cold curing polyurethane finish - Part 003: Flexible and high fluid resistance for interior
Série aérospatiale - Peintures et vernis - Peinture de finition polyuréthane, à deux composants polymérisant à température ambiante - Partie 003: Flexibilité et haute résistance aux fluides pour application en intérieur
Luft- und Raumfahrt - Beschichtungsstoffe - Zweikomponenten- Polyurethan-Decklack, kalthärtend - Teil 003: Elastisch und medienbeständig für Innen 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
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 2434-003:2010: ESIST EN 2434-003:2010
EN 2435-003, Aerospace series — Paints and varnishes — Corrosion resistant chromated two component cold curing primer – Part 003: High corrosion and fluid resistance
EN 2379, Aerospace series — Fluids for assessment of non-metallic materials 1) EN 3837, Aerospace series — Paints and varnishes — Nature and method for surface preparation of test pieces in aluminium alloys 1) EN 3840, Aerospace series — Pieces paints and varnishes — Technical specification EN 4385, Aerospace series — Non-metallic materials — General organisation of standardisation — Links between types of standards 1) EN 7000-9, Aerospace series — Non-metallic materials — Rules for the drafting and presentation of material standards — Part 9: Paints and varnishes 1) EN ISO 1513, Paints and
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