EN 4476:2011

Aerospace series - Paints and varnishes - Cold curing intermediate coat

This European Standard specifies the requirements for a two component polyurethane, topcoat, with a medium degree of resistance to erosion by the effects of rain, available in a range of colours and levels of gloss, to be applied over a primer for aerospace applications on areas where rain erosion at subsonic speeds may be a problem, e.g. leading edges and air intakes.
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 2435-001 and -002. The ability of the material to be used for a specific application (e.g. alternative substrate, alternative primer, specific drying conditions, etc.) should be determined by supplementary tests to confirm that the requirements of this European Standard are met.

Luft- und Raumfahrt - Beschichtungsstoffe - Zwischenbeschichtung, kalthärtend

Diese Norm legt die Anforderungen an eine Zweikomponenten-Polyurethan-Deckbeschichtung mit mittlerer Beständigkeit gegenüber regenbedingter Erosion fest, die es mit einer großen Auswahl an Farben und Glanzstufen gibt und die in Luft- und Raumfahrt in Bereichen, in denen Regenerosion bei Unterschallgeschwindigkeiten ein Problem darstellen kann, wie beispielsweise am Keilwinkel oder an Lufteintritten, auf einen Primer aufgebracht wird.
Die in dieser Norm festgelegten Kennzahlen ergeben sich an definierten Aluminiumlegierungs-Probenkörpern, die nach EN 3837, Verfahren A, und EN 23270 vorbereitet und mit einem Primer nach EN 2435 001 beschichtet werden. Die Tauglichkeit eines Beschichtungsstoffes für eine spezifische Anwendung (z. B. alternativer Untergrund, alternativer Primer, spezifische Trocknungsbedingungen usw.) muss durch zusätzliche Prüfungen festgelegt werden, die bestätigen, dass die Anforderungen dieser Norm erfüllt sind.

Série aérospatiale - Peintures et vernis - Couche intermédiaire polymérisant à température ambiante

La présente Norme européenne spécifie les exigences relatives aux couches de finition en polyuréthane à deux composants, avec un degré de résistance moyen à l’érosion due aux effets de la pluie, disponibles dans une gamme de couleurs et de niveaux de brillant, à appliquer sur une couche primaire pour les applications aérospatiales dans des zones où l’érosion due à la pluie à des vitesses subsoniques peut être source de problème, par exemple, bords de fuites et entrées d’air.
Les propriétés spécifiées dans la présente Norme européenne sont obtenues sur des éprouvettes en alliage d’aluminium spécifiques préparées conformément aux EN 3837 Procédure A et EN 23270 et peintes avec un primaire selon l’EN 2435-001 et -002. L’aptitude du matériau à être utilisé pour une application spécifique (par exemple, subjectile de remplacement, primaire de remplacement, conditions spécifiques de séchage, etc.) doit être déterminée par des essais complémentaires afin de confirmer le respect des exigences de la présente Norme européenne.

Aeronavtika - Barve in laki - Vmesni premaz, ki se suši pri sobni temperaturi

Ta standard določa zahteve za dvokomponentne poliuretane, pokrivne premaze s srednjo stopnjo odpornosti proti eroziji zaradi dežja, na voljo v različnih barvah in stopnjah sijaja, nanesene prek temeljni premaz za uporabo v aeronavtiki na površinah, kjer lahko erozija zaradi dežja pri podzvočni hitrosti povzroči problem, npr. na zgornjih robovih in zračnih dovodih.
Lastnosti, določene v tem standardu, so pridobljene na definiranih preskusnih kosih aluminijeve zlitine, pripravljenih v skladu z EN 3837, postopek A in ISO 3270 ter premazane s temeljnim premazom iz EN 2435-001 in -002. Sposobnost materiala, da se uporablja za posebna področja uporabe (npr. alternativni substrat, alternativni temeljni premaz, posebni pogoji sušenja itd.) se določi z dodatnimi preskusi, s katerimi se potrdi, da so zahteve tega standarda izpolnjene.

General Information

• Status: Withdrawn
• Publication Date: 03-May-2011
• Withdrawal Date: 24-Sep-2019
• ICS: 49.040 - Coatings and related processes used in aerospace industry
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 5 - Non-Metallic
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 25-Sep-2019
• Ref Project: SIST EN 4476:2011 - Aerospace series - Paints and varnishes - Cold curing intermediate coat

Relations

• Replaced By: EN 4476:2019 - Aerospace series - Paints and varnishes - Cold curing intermediate coat
• Effective Date: 02-Oct-2019

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Barve in laki - Vmesni premaz, ki se suši pri sobni temperaturiLuft- und Raumfahrt - Anstrichstoff - Zwischenschicht raumtemperaturhärtendSérie aérospatiale - Peintures et vernis - Couche intermédiaire polymérisant à température ambianteAerospace series - Paints and varnishes - Cold curing intermediate coat49.040Prevleke 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 4476:2011SIST EN 4476:2011en01-december-2011SIST EN 4476:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4476
May 2011 ICS 49.040 English Version
Aerospace series - Paints and varnishes - Cold curing intermediate coat
Série aérospatiale - Peintures et vernis - Couche intermédiaire polymérisant à température ambiante
Luft- und Raumfahrt - Beschichtungsstoffe - Zwischenbeschichtung, kalthärtend This European Standard was approved by CEN on 3 March 2011.
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, 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 © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4476:2011: ESIST EN 4476:2011

Method for the determination of ability to selectively remove the finish . 13Annex B (normative)
Method for the determination of ability to restore the paint system after removal . 14Annex C (normative)
Composition of reference paint remover . 15Bibliography . 16 SIST EN 4476:2011

EN 2434-004, Aerospace series — Paints and varnishes — Two component cold curing polyurethane finish — Part 004: High flexibility EN 2435-002, Aerospace series — Paints and varnishes — Corrosion resistant chromated two component cold curing primer — Part 002: High corrosion resistance EN 3696, Aerospace series — Washers in heat resisting steel EN 3837, Aerospace series — Paints and varnishes — Nature and method for surface preparation of test pieces in aluminium alloys1) EN 3840, Aerospace series — Paints and varnishes — Technical specification EN 4160, Aerospace series — Paints and varnishes — Determination of the effect of thermal exposure
EN 23270, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and testing (ISO 3270:1984) EN ISO 1513, Paints and varnishes — Examination and preparation of test samples (ISO 1513:2010) EN ISO 1518, Paints and varnishes — Scratch test (ISO 1518:1992) EN ISO 1520, Paints and varnishes — Cupping test (ISO 1520:2006) EN ISO 2409, Paints and varnishes — Cross-cut test (ISO 2409:2007) EN ISO 2431, Paints and varnishes — Determination of flow time by use of flow cups (ISO 2431:1993, including Technical Corrigendum 1:1994) EN ISO 2811 (all parts), Paints and varnishes — Determination of density (ISO 2811 series)
1 In preparation at the date of publication of this European Standard.
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