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1、BRITISH STANDARD AEROSPACE SERIES BS EN 2435-003:2006 Paints and varnishes Corrosion resistant chromated two component cold curing primer Part 003: High corrosion and fluid resistance The European Standard EN 2435-003:2006 has the status of a British Standard ICS 49.040 ? Licensed Copy: sheffieldun
2、sheffieldun, na, Fri Nov 03 01:07:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2435-003:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2006 BSI 2006 ISBN 0 580 48545 5 National foreword This British Standard is the offici
3、al English language version of EN 2435-003:2006. The UK participation in its preparation was entrusted by Technical Committee ACE/65, Non-metallic materials for aerospace purposes (excluding textiles), to Subcommittee ACE/65/-/3, Paints, which has the responsibility to: aid enquirers to understand t
4、he text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcom
5、mittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the
6、“Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from leg
7、al obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication
8、 Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:07:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2435-003 June 2006 ICS 49.040 English Version Aerospace series - Paints and varnishes - Corrosion resistant chromated
9、 two component cold curing primer - Part 003: High corrosion and fluid resistance Srie arospatiale - Peintures et vernis - Peinture primaire anti-corrosion chromate, deux composants polymrisant temprature ambiante - Partie 003 : Haute rsistance la corrosion et aux fluides Luft- und Raumfahrt - Anstr
10、ichstoffe - Korrosionsbestndiger Zweikomponenten-Grundanstrich, kalthrtend, chromathaltig - Teil 003: Hohe Korrosionsbestndigkeit und hohe Bestndigkeit gegen Flssigkeiten This European Standard was approved by CEN on 27 February 2006. CEN members are bound to comply with the CEN/CENELEC Internal Reg
11、ulations 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 Central Secretariat or to any CEN member. This
12、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 Central Secretariat has the same status as the official versions. CEN members are the
13、national standards bodies of Austria, Belgium, 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
14、 Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2435-003:2006
15、: E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:07:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 Contents Page Foreword3 0 Introduction4 1 Scope4 2 Normative references4 3 Definitions 5 4 Classification5 5 Batch release and qualification testing.5 EN 2435-003:2006 Licensed Copy: shef
16、fieldun sheffieldun, na, Fri Nov 03 01:07:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 Foreword This European Standard (EN 2435-003:2006) has been prepared by the AeroSpace and Defense Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordan
17、ce with the rules of this Association, this Standard has re- ceived the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of
18、an identical text or by endorsement, at the latest by December 2006, and conflicting national standards shall be withdrawn at the latest by December 2006. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall no
19、t be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Den- mark, Estonia, Finland
20、, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem- bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzer- land and the United Kingdom. EN 2435-003:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:07:
21、39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 0 Introduction This standard is part of a series of EN non-metallic materials standards for aerospace applications. The general organisation of this series is described in EN 4385. This standard is a level 3 document as defined in EN 4385. Definition o
22、f subcase numbering in Tables 2 to 5 is given in TR 7000-9. 1 Scope This standard defines the requirements for a two component, chromated epoxy or polyurethane, high corrosion resistant primer with a degree of resistance to aggressive hydraulic fluids which can be used with or without a finish for a
23、erospace applications. The properties specified in this standard are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837 and ISO 3270. The ability of the material to be used for a specific application (e.g. alternative substrate, alternative primer, specific drying co
24、nditions etc.) shall be determined by supplementary tests to confirm that the requirements of this standard are met. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refer- ences, only the edition cited applies. For undated r
25、eferences, the latest edition of the referenced document (including any amendments) applies. EN 2334, Aerospace series Chromic-sulphuric acid pickle of aluminium and aluminium alloys EN 2379, Aerospace series Fluids for assessment of non-metallic materials1) EN 2434-003, Aerospace series Paints and
26、varnishes Two component cold curing polyurethane finish Part 04: Flexible and high fluid resistance for interior 1) EN 2709, Aerospace series Aluminium alloy 2024-T3510 bar and section 1,2 (a or D) 150 mm with peripheral coarse grain control1) EN 3837, Aerospace series Paints and varnishes Nature an
27、d method for surface preparation of test pieces in aluminium alloys1) EN 3840, Aerospace series Paints and varnishes Technical specification1) EN 4385, Aerospace series Non-metallic materials General organisation of standardisation Links be- tween types of standards1) ISO 1513, Paints and varnishes
28、Examination and preparation of samples for testing ISO 3270, Paints and varnishes and their raw materials Temperature and humidities for conditioning and testing ISO 3696, Water for analytical laboratory use Specification and test methods TR 7000-9, Aerospace series Non-metallic materials Rules for
29、the drafting and presentation of material standards Part 9: Paints and varnishes2) 1) Published as ASD Prestandard at the date of publication of this standard. 2) Published as ASD Technical Report at the date of publication of the standard. EN 2435-003:2006 Licensed Copy: sheffieldun sheffieldun, na
30、, Fri Nov 03 01:07:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 3 Definitions Not applicable. 4 Classification The primer is classified according to the nature of the most typical chemical reaction that occurs between the two components: Type A: epoxy (reaction between an epoxy resin and an activ
31、ator with amino functional groups). Type B: polyurethane (reaction between an hydroxyl functional resin and a polyisocyanate activator). 5 Batch release and qualification testing 5.1 Batch release testing For batch acceptance the tests marked with the symbol * in Tables 2 to 5 shall be performed. 5.
32、2 Qualification tests For product qualification, all tests mentioned in this standard, in the Tables 1 to 5, shall be performed. Table 1 General requirements 1.001 Material description Two component cold curing chromated primer with high corro- sion and fluid resistance. 1.002 Formulation Base a bas
33、e containing essentially chromate corrosion in- hibitor associated, or not, with pigments and fillers dispersed in a mixture of resins and solvents. Activator an activator solution Thinner if required 1.003 Form and method of production These components shall be mixed in simple whole number proporti
34、ons, by volume or by weight, in accordance with the manufacturers instructions. 1.004 Technical specification EN 3840 1.009 Application and use Dry film thickness of (20 5) m. 1.010 Storage See EN 3840 1.011 Shelf life See EN 3840 1.013 Processing conditions ISO 3270 for 7 days before testing unless
35、 otherwise specified. 1.093 Quality assurance See EN 3840 1.094 Designation Primer EN 2435-003 Type A or Type B 1.095 Packaging See EN 3840 1.096 Identification marking See EN 3840 1.097 Flash point See EN 3840 1.098 Health and safety See EN 3840 EN 2435-003:2006 Licensed Copy: sheffieldun sheffield
36、un, na, Fri Nov 03 01:07:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 Table 2 Physical and chemical characteristics 1 ISO 1513 Condition 6 As received in original container. 2.014 * 7 Shall be free from extraneous matter and show no skinning, gelling, hard settlement or other defect which will pr
37、event satisfactory application to produce a defect free film. 1 None 3 EN 3837 A2 2024-T3 Clad 4 EN 3837 Process A or B EN 2334 Pickle or CAA Application properties and finish 5 Primer to this standard. 2.011 * 7 Paint film shall show an opaque even finish, free from runs, sags, wrinkling, pin holin
38、g or other defect. EN 3840 1 Test 5 6 Base + activator + thinner 2.034 Sedimentation rating 7 ml V 30 after 4 h EN 3840 1 Test 20 followed by Test 8a or Test 9a Pot life 6 Base + activator + thinner 2.012 * 7 s or Pa.s 2 initial value after 4 h EN 3840 1 Test 8a or Test 9a Viscosity 6 Base + activat
39、or + thinner 2.029 * 7 s or Pa.s 10 %b c EN 3840 1 Test 10 Fineness of grind 6 Base + activator 2.035 * 7 m 30 EN 3840 1 Test 1 Base Activator 2.027 Non volatile matter 7 % m/m 2 b c 2 b c EN 3840 1 Test 49 6 Base + activator + thinner 2.027 Volatile organic compound (VOC) content 7 g/l reference va
40、lueb c EN 3840 1 Test 3 Density 6 Base 2.057 * 7 g/cm3 2b c e continued EN 2435-003:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:07:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 7 Table 2 Physical and chemical characteristics (concluded) EN 3840 1 Test 4 6 Activator + thinner Densi
41、ty hydrometer Activator Thinner 2.057 * 7 g/cm3 1b c 1b c EN 3840 1 Test 7 Base Activator Thinner 2.036 Flash point 7 C reference valuec reference valuec reference valuec EN 3840 1 Test 21 3 EN 3837 A2 2024-T3 Clad 4 EN 3837 Process A or B EN 2334 Pickle or CAA 5 Primer to this standard. 6 ISO 3270
42、2.041 Surface dry time 7 h 1d EN 3840 1 Test 22 3 EN 3837 A2 2024-T3 Clad 4 EN 3837 Process A or B EN 2334 Pickle or CAA 5 Primer to this standard. 6 ISO 3270 2.041 Drying time Print free 7 h 4 using a load of 1 000 gd EN 3840 1 Test 23 3 EN 3837 A2 2024-T3 Clad 4 EN 3837 Process A or B EN 2334 Pick
43、le or CAA 5 Primer to this standard. Through dry time 6 ISO 3270 2.041 * 7 h 16 2.999 Notes * See 5.1 a Test 8 shall be used for non-thixotropic paints and test 9 for thixotropic paints. b The deviation is that compared to the reference value. c The reference value is that established during qualifi
44、cation. d Unless otherwise specified. e Test could also be used for activator and thinner if required. EN 2435-003:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:07:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 8 Table 3 Physico-chemical characteristics EN 3840 1 Test 30 3 EN 3837 A2
45、 2024-T3 Clad 4 EN 3837 Process A or B EN 2334 Pickle or CAA 5 Primer to this standard Colour 6 ISO 3270 3.084 or 3.053 * 7 E If specified shall match the colour specified by the user. EN 3840 1 Test 27 3 EN 3837 A2 2024-T3 Clad 4 EN 3837 Process A or B EN 2334 Pickle or CAA 5 Primer to this standar
46、d. Gloss 60 6 ISO 3270 3.088 or 3.083 * 7 Gloss units 20 * See 5.1 Table 4 Mechanical characteristics EN 3840 1 Test 24 3 EN 3837 A2 2024-T3 Clad 4 EN 3837 Process A EN 2334 Pickle 5 Primer to this standard. Adhesion 6 ISO 3270 4.082 * 7 Classification 0 EN 3840 1 Test 29 3 EN 3837 A2 2024-T3 Clad 4
47、 EN 3837 Process A or B EN 2334 Pickle or CAA 5 Primer to this standard. Scratch resistance 6 ISO 3270 4.076 * 7 1 800 g metal not exposed. EN 3840 1 Test 25 6 mm mandrel 3 EN 3837 A6 2024-T3 Clad 4 EN 3837 Process A EN 2334 Pickle 5 Primer to this standard. 6 ( 55 2) C 4.082 Bend test cylindrical m
48、an- drel 7 No detachment or cracking (10 magnification). continued EN 2435-003:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 01:07:39 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 9 Table 4 Mechanical characteristics (concluded) EN 3840 1 Test 46 3 EN 3837 A2 2024-T3 Clad 4 EN 3837 Proces
49、s A or B or Ca EN 2334 Pickle or CAA or CCC 5 Primer to this standard. 6 ISO 3270 4.082 Slow deformation 7 3 mm no detachment or cracking (10 magnification). EN 3840 1 Test 26 3,8 mm spacing 3 EN 3837 A2 2024-T3 Clad 4 EN 3837 Process A EN 2334 Pickle 5 Primer to this standard. 6 ISO 3270 4.080 Impact 7 No detachment or cracking. 4.999