1、BRITISH STANDARD AEROSPACE SERIESBS EN2436-004:2006Paints and varnishes Corrosion resistant chromate-free two component cold curing primer Part 004: High corrosion and fluid resistance with surface preparation toleranceThe European Standard EN 2436-004:2006 has the status of a British StandardICS 49
2、.040g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 2436-004:2006This British Standard was published under the authority of the Standards Poli
3、cy and Strategy Committee on 31 July 2006 BSI 2006ISBN 0 580 49040 8National forewordThis British Standard is the official English language version of EN 2436-004:2006. The UK participation in its preparation was entrusted by Technical Committee ACE/65, Non-metallic materials for aerospace purposes
4、(excluding textiles), to Subcommittee ACEW/65/-/3, Paints, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in
5、 this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “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
6、contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposa
7、ls for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis 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
8、 notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 2436-004July 2006ICS 49.040English VersionAerospace series - Paints and varnishes - Corrosion resistantchromate-fr
9、ee two component cold curing primer - Part 004:High corrosion and fluid resistance with surface preparationtoleranceSrie arospatiale - Peintures et vernis - Peinturesprimaires anti-corrosion sans chromate deux composantspolymrisant temprature ambiante - Partie 004 : Hautersistance la corrosion et au
10、x fluides avec tolrance laprparation de surfaceLuft- und Raumfahrt - Anstrichstoffe -Korrosionsbestndiger Zweikomponenten-Grundanstrich,kalthrtend chromatfrei - Teil 004: Hohe Bestndigkeitgegen Korrosion und Flssigkeiten mitOberflchentoleranzenThis European Standard was approved by CEN on 9 March 20
11、06.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on
12、application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat ha
13、s the same status as the officialversions.CEN members are the 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, Roman
14、ia,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworld
15、wide for CEN national Members.Ref. No. EN 2436-004:2006: E2 Contents Page Foreword3 0 Introduction4 1 Scope 4 2 Normative references 4 3 Definitions 5 4 Classification5 5 Batch release and qualification testing.5 EN 2436-004:20063 Foreword This European Standard (EN 2436-004:2006) has been prepared
16、by the AeroSpace and Defense Industries Association - Standardization (ASD-STAN). After enquiries and votes carried out in accordance 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, pr
17、ior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2007, and conflicting national standards shall be withdrawn at the latest by January 2007. Attention is draw
18、n to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followin
19、g countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Den-mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem-bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain
20、, Sweden, Switzer-land and the United Kingdom. EN 2436-004:20064 0 Introduction This standard is part of a series of EN non-metallic materials standards for aerospace applications. The gen-eral organisation of this series is described in EN 4385. This standard is a level 3 document as defined in EN
21、4385. Definition of subcase numbering in Tables 2 to 5 is given in TR 7000-9. 1 Scope This standard specifies the basic requirements for a two component, cold curing, chromate-free epoxy or polyurethane, high corrosion and fluid resistant primer with improved tolerance to the standard of surface pre
22、paration which can be used with or without a finish for aerospace applications. The properties specified in this standard are obtained on defined aluminium alloy test pieces prepared in accordance with EN 3837, process D and ISO 3270. The ability of the material to be used for a specific application
23、 (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. 2 Normative references The following referenced documents are indispensable for the application of this document. F
24、or dated refer-ences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2379, Aerospace series Fluids for assessment of non-metallic materials1)EN 3837, Aerospace series Paints and varnishes Nature and method
25、for surface preparation of test pieces in aluminium alloys1)EN 2434-004, Aerospace series Paints and varnishes Two component cold curing polyurethane finish Part 004: High flexibility1)EN 3840, Aerospace series Paints and varnishes Technical specification1)EN 4385, Aerospace series Non-metallic mate
26、rials General organisation of standardisation Links be-tween types of standards1)ISO 1513, Paints and varnishes 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 analyt
27、ical laboratory use Specification and test methods TR 7000-9, Aerospace series Non-metallic materials Rules for 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 Technica
28、l Report at the date of publication of the standard. EN 2436-004:20065 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 a
29、ctivator 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 an * in Tables 2 to 5 shall be performed. 5.2 Qu
30、alification tests For product qualification, all tests mentioned in this standard, in Tables 1 to 5, shall be performed. Table 1 General requirements 1.001 Material description Two component cold curing chromate-free primer with high corrosion and fluid resistance with surface tolerance. 1.002 Formu
31、lation Base a base 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
32、 number proportions, 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 befor
33、e testing unless otherwise specified.1.093 Quality assurance See EN 3840 1.094 Designation Chromate-free primer. EN 2436-005 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 2436-004:20066 Table
34、 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 prevent satisfactory application to produce a defect free film. 1 None 3 EN 3837
35、 A22024-T3 Clad 4 EN 3837 Process D Degreased 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, pinholing or other defect. EN 3840 1 Test 5 6 Base + activator + thinner 2.034 Sedimentation rating 7 ml
36、V 30 after 4 h EN 3840 1 Test 20 followed by Test 8aor Test 9aPot life 6 Base + activator + thinner 2.012 *7 s or Pa s 2 initial value after 4 h EN 3840 1 Test 8aor Test 9aViscosity 6 Base + activator + thinner 2.029 *7 s or Pa s 10 %b cEN 3840 1 Test 10 Fineness of grind 6 Base + activator 2.035 *7
37、 m 30 EN 3840 1 Test 1 Base Activator 2.027 Non volatile matter 7 % 2 b c 2 b cEN 3840 1 Test 49 6 Base + activator + thinner 2.027 Volatile organic compound (VOC) content 7 g/l reference valueb cEN 3840 1 Test 3 Density 6 Base 2.057 * 7 g/cm3 2b c eEN 2436-004:20067 Table 2 Physical and chemical ch
38、aracteristics (concluded) EN 3840 1 Test 4 6 Activator + thinner Density hydrometer Activator Thinner 2.057 *7 g/cm3 1b c 1b cEN 3840 1 Test 7 Base Activator Thinner 2.036 Flash point 7 C reference valuec reference valuec reference valuecEN 3840 1 Test 21 3 EN 3837 A22024-T3 Clad4 EN 3837 Process A
39、Degreased 5 Primer to this standard. 6 ISO 3270 2.041 Surface dry time 7 h 1dEN 3840 1 Test 22 3 EN 3837 A22024-T3 Clad 4 EN 3837 Process D Degreased 5 Primer to this standard. 6 ISO 3270 2.041 Drying time Print free 7 h 4 using a load of 1 000 gdEN 3840 1 Test 23 3 EN 3837 A22024-T3 Clad4 EN 3837 P
40、rocess D Degreased 5 Primer to this standard. Through dry time 6 ISO 3270 2.041 * 7 h 16 2.999 Notes *See 5.1aTest 8 shall be used for non-thixotropic paints and test 9 for thixotropic paints. bThe deviation is that compared to the reference value. cThe reference value is that established during qua
41、lification.dUnless otherwise specified. eTest could also be used for activator and thinner if required. Table 3 Physico Chemical characteristics EN 3840 1 Test 30 3 EN 3837 A22024-T3 Clad 4 EN 3837 Process A Degreased 5 Primer to this standard Colour 6 ISO 3270 3.084 or 3.053 * 7 E If specified shal
42、l match the colour specified by the user.EN 3840 1 Test 27 3 EN 3837 A22024-T3 Clad 4 EN 3837 Process A Degreased 5 Primer to this standard. Gloss 60 6 ISO 3270 3.088 or 3.083 *7 Gloss units 20 * See 5.1 EN 2436-004:20068 Table 4 Mechanical characteristics EN 3840 1 Test 24 3 EN 3837 A22024-T3 Clad
43、4 EN 3837 Process D Degreased 5 Primer to this standard. Adhesion 6 ISO 3270 4.082 * 7 Classification 0 EN 3840 1 Test 29 3 EN 3837 A22024-T3 Clad 4 EN 3837 Process A Degreased 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 mandre
44、l 3 EN 3837 A62024-T3 Clad 4 EN 3837 Process D Degreased 5 Primer to this standard. 6 ( 55 2) C 4.082 Bend test cylindrical mandrel 7 No detachment or cracking (10 magnification). EN 3840 1 Test 46 3 EN 3837 A22024-T3 Clad 4 EN 3837 Process D Degreased 5 Primer to this standard. 6 ISO 3270 4.082 Slo
45、w deformation 7 3 mm no detachment or cracking (10 magnification). EN 3840 1 Test 26 3,8 mm spacing 3 EN 3837 A22024-T3 Clad 4 EN 3837 Process D Degreased 5 Primer to this standard. 6 ISO 3270 4.080 Impact 7 No detachment or cracking. * See 5.1 EN 2436-004:20069 Table 5 Environmental characteristics
46、 EN 3840 1 Test 38 3 EN 3837 A22024-T3 Clad 4 EN 3837 Process D Degreased 5 Primer to this standard 6 150 C 24 h 5.102 Heat 7 Test 46 1,5 mm (ISO 3270) EN 3840 1 Test 38 3 EN 3837 A22024-T3 Clad 4 EN 3837 Process D Degreased 5 Primer to this standard. 6 40 C 24 h 5.102 Cold 7 Test 46 3 mm (ISO 3270)
47、. EN 3840 1 Test 35 3 EN 3837 A22024-T3 Clad 4 EN 3837 Process D Degreased 5 Primer to this standard, panel scribed to substrate immediately before test-ing. 6 A tri-n-butyl phosphate to EN 2379 G2 for 168 h (ISO 3270)aB tri-n-butyl phosphate to EN 2379 G2 for 168 h at (70 2) Ca5.101 Resistance to f
48、luidsa7 No blistering, softening, lifting or other film defect. Test 29 1 000 g metal not exposed EN 3840 1 Test 34 3 EN 3837 A22024-T3 Clad 4 EN 3837 Process D Degreased 5 Primer to this standard, panel scribed to substrate immediately before test-ing. 6 Water to ISO 3696 Grade 2 for 168 h at (40 2
49、) C. 5.100 Water behaviour 7 No blistering, softening, lifting or other film defect. Test 24 Classification 1 Test 29 1 200 g metal not exposed EN 3840 1 Test 42 3 EN 3837 A12024-T3 Unclad 4 EN 3837 Process D Degreased A Primer to this standard, panel scribed to substrate immediately before testing. 5 B Primer + finish to EN 2434-004, panel scribed to substrate immediately before testing. 6 3 000
