EN 4687:2012

Aerospace series - Paints and varnishes - Chromate free non corrosion inhibiting two components cold curing primer for military application

This European Standard defines the requirements for a two components, chromate and lead free epoxy, non
corrosion inhibiting primer.
The coating shall be suitable for use on fibre reinforced composite materials, titanium and corrosion resistant
steels and other suitably prepared corrosion resistant substrates.

Luft- und Raumfahrt - Beschichtungsstoffe - Zweikomponenten Grundbeschichtung, chromatfrei, nicht korrosionshemmend, raumtemperaturhärtend, für militärische Anwendung

Diese Europäische Norm legt die Anforderungen an eine chromat- und bleifreie, nicht korrosionshemmende
Zweikomponenten-Epoxid-Grundbeschichtung fest.
Die Beschichtung muss für die Anwendung auf faserverstärkten Verbundstoffen, Titan und korrosionsbeständigem
Stahl und anderen geeignet hergestellten korrosionsbeständigen Substraten geeignet sein.

Série aérospatiale - Peinture et vernis - Peinture primaire sans chromate non anticorrosive à deux composants polymérisant à température ambiante pour applications militaires

Aeronavtika - Barve in laki - Brezkromatni, protikorozijski, dvokomponentni temeljni premaz, ki se strdi pri temperaturi okolja, za vojaško uporabo

Ta evropski standard določa zahteve za dvokomponentni epoksidni temeljni premaz brez kroma in svinca, ki ne preprečuje korozije. Premaz naj bi bil primeren za uporabo na kompozitih, ojačanih z vlakni, titanu in jeklih, odpornih proti koroziji, ter drugih ustrezno pripravljenih podlagah, odpornih proti koroziji.

General Information

• Status: Withdrawn
• Publication Date: 20-Mar-2012
• Withdrawal Date: 12-Jan-2021
• 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: 13-Jan-2021
• Ref Project: SIST EN 4687:2012 - Aerospace series - Paints and varnishes - Chromate free non corrosion inhibiting two components cold curing primer for military application

Relations

• Replaced By: EN 4687:2021 - Aerospace series - Paints and varnishes - Chromate free (non corrosion inhibiting) two-components room temperature curing primer - Chromate free primer for military application
• Effective Date: 08-Jun-2022

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Barve in laki - Brezkromatni, protikorozijski, dvokomponentni temeljni premaz, ki se strdi pri temperaturi okolja, za vojaško uporaboLuft- und Raumfahrt - Beschichtungsstoffe - Zweikomponenten Grundbeschichtung, chromatfrei, nicht korrosionshemmend, raumtemperaturhärtend, für militärische AnwendungSérie aérospatiale - Peinture et vernis - Peinture primaire sans chromate non anticorrosive à deux composants polymérisant à température ambiante pour applications militairesAerospace series - Paints and varnishes - Chromate free non corrosion inhibiting two components cold curing primer for military application49.040Prevleke 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 4687:2012SIST EN 4687:2012en01-september-2012SIST EN 4687:2012SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4687
March 2012 ICS 49.040 English Version
Aerospace series - Paints and varnishes - Chromate free non corrosion inhibiting two components cold curing primer for military application
Série aérospatiale - Peinture et vernis - Peinture primaire sans chromate non anticorrosive à deux composants polymérisant à température ambiante pour applications militaires
Luft- und Raumfahrt - Beschichtungsstoffe - Zweikomponenten Grundbeschichtung, chromatfrei, nicht korrosionshemmend, raumtemperaturhärtend, für militärische Anwendung This European Standard was approved by CEN on 21 January 2012.
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, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4687:2012: ESIST EN 4687:2012

EN 4689, Aerospace series — Paints and varnishes — Two components cold curing polyurethane finish — High flexibility and chemical agent resistance for military application EN ISO 1513, Paints and varnishes — Examination and preparation of test samples
EN ISO 1518, Paints and varnishes — Determination of scratch resistance EN ISO 1519, Paints and varnishes — Bend test (cylindrical mandrel) EN ISO 1520, Paints and varnishes — Cupping test EN ISO 1524, Paints, varnishes and printing inks — Determination of fineness of grind EN ISO 2409, Paints and varnishes — Cross-cut test
1) Published as ASD-STAN Prestandard at the date of publication of this standard (www.asd-stan.org). SIST EN 4687:2012

MIL-PRF-23699F, Performance specification: Lubricating oil, aircraft turbine engine, synthetic base, NATO code number O-156 2) MIL-DTL-83133G, Detail specification: Turbine fuel, aviation, kerosene type, JP-8 (NATO F-34), NATO F-35, and JP-8+100 (NATO F-37) 2) AMS 1526B, Cleaner for aircraft exterior surfaces water-miscible, pressure- spraying type 3)
AMS 1527B, Cleaner for aircraft exterior surfaces water-miscible, foam-on, pressure-spraying 3) AMS 1533A, Cleaner for exterior aircraft surfaces gel-type, solvent-base 3) DEF STAN 68-10, Corrosion Preventive, Water Displacing NATO Code: C-634 Joint Service Designation: PX-24 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 3840 apply. 4 Surface pretreatments In accordance with EN 3837, the surface pretreatments applicable to aluminium alloy test panels are the following: EN 3837 — Procedure A : Sulfochromic pickling in accordance with EN 2334; EN 3837 — Procedure B : Chromic acid anodizing in accordance with EN 2101; EN 3837 — Procedure C : Chromate conversion coating in accordance with EN 2437. 5 Classification The primer is classified according to the following types: TYPE I: Standard solvent content (VOC < 680 g/l); TYPE II: Low volatile organic content (VOC < 420 g/l); TYPE III: Waterborne (VOC < 350 g/l).
2) Published by: DoD National (US) MIL. Department of Defense http://www.defenselink.mil/ 3) Published by: SAE National (US) Society of Automotive Engineers http://www.sae.org/ SIST EN 4687:2012

6.2 Qualification tests For product qualification, all tests defined in this standard, in the Tables 2 to 7, shall be performed. A minimum of three batches shall be tested for qualification purposes. 6.3 Batch acceptance testing The Manufacturer shall give evidence on the Test Report or the Certificate of Conformance that all the tests marked with the symbol * in this specification shall be performed for batch acceptance tests.
6.4 Compatibility of waterborne paints to solvent borne paints The waterborne primer type III shall be compatible to solvent borne primers type I and type II according to this standard and to type I and type II primers to EN 4688. All tests to demonstrate the compatibility are defined in Table 6 and shall be performed. 6.5 Purchaser batch release testing The purchaser may perform any of the test of this specification deemed necessary to ensure continuing uniform quality in material shipments. Table 1 — General requirements
Material description Chromate free primer, for aerospace applications
Formulation Base Activator Thinner – if appropriate
Preparation These components shall be mixed in simple whole number proportions, by volume or weight, in accordance with the manufacturers's instructions.
Technical specification EN 3840
Marking See EN 3840.
Storage stability See EN 3840.
Application and use Dry film thickness of (25 ± 5) µm
Drying conditions (23 ± 2) °C / (50 ± 5) % RH for 7 (seven) days before testing, or after air drying for 4 (four) hours to 6 (six) hours before the application of the topcoat EN 4689. ISO 3270 for 7 (seven) days before application of the topcoat EN 4689.
Quality assurance
See EN 3840.
Designation Chromate free primer
Packaging See EN 3840.
Health and safety See EN 3840.
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