1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 2434-001:2010Aerospace series Paints andvarnishes Two componentcold curing polyurethane finishPart 001: Basic requirementsBS EN 2434-001:2010 BRITISH STANDARDNational forew
2、ordThis British Standard is the UK implementation of EN 2434-001:2010.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/65/-/3, Paints for Aerospace Purposes.A list of organizations represented on this committee can beobtained on request to its secretary.This publicatio
3、n does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 59607 0ICS 49.040Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority o
4、f theStandards Policy and Strategy Committee on 30 November 2010.Amendments issued since publicationDate Text affectedBS EN 2434-001:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2434-001 September 2010 ICS 49.040 English Version Aerospace series - Paints and varnishes - Two component col
5、d curing polyurethane finish - Part 001: Basic requirements Srie arospatiale - Peintures et vernis - Peinture de finition polyurthane, deux composants polymrisant temprature ambiante - Partie 001: Exigences gnrales Luft- und Raumfahrt - Beschichtungsstoffe - Zweikomponenten- Polyurethan-Decklack, ka
6、lthrtend - Teil 001: Grundlegende Anforderungen 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 alte
7、ration. 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 tra
8、nslation 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, Fra
9、nce, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE F
10、R 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 2434-001:2010: EBS EN 2434-001:2010EN 2434-001:2010 (E) 2 Contents Page Foreword 3Introduction .41 Scope 42 Normati
11、ve references 43 Terms and definitions .54 Classification 55 Batch release and qualification testing .55.1 Batch release testing .55.2 Qualification tests 5BS EN 2434-001:2010EN 2434-001:2010 (E) 3 Foreword This document (EN 2434-001:2010) has been prepared by the Aerospace and Defence Industries As
12、sociation of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. T
13、his 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 March 2011, and conflicting national standards shall be withdrawn at the latest by March 2011. Attention is drawn to the possibility that some of the
14、 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 following countries are bound to implement th
15、is European Standard: 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, Switzerlan
16、d and the United Kingdom. BS EN 2434-001:2010EN 2434-001:2010 (E) 4 Introduction Definition of subcase numbering in Table 2 to Table 5 is given in EN 7000-9. 1 Scope This European Standard specifies the basic requirements for a two component polyurethane finish, available in a range of colours and l
17、evels of gloss, to be applied over a primer for aerospace applications. The properties specified in this 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 2435-002. The ability of the material to be
18、 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. 2 Normative references The following referenced documents are indispensable for the
19、 application of this document. For dated references, only the edition cited applies. For undated references, 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
20、series Fluids for assessment of non-metallic materials1)EN 2435-001, Aerospace series Paints and varnishes Corrosion resistant chromated two component cold curing primer Part 001: Minimum requirements EN 2435-002, Aerospace series Paints and varnishes Corrosion resistant chromated two component cold
21、 curing primer Part 002: High corrosion resistance 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 7000-9, Aerospace series Non-metallic material
22、s Rules for the drafting and presentation of material standards Part 9: Paints and varnishes 1) 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 samples for
23、 testing (ISO 1513:1992) EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696:1987) 1)Published as ASD-STAN Prestandard at the date of publication of this standard BS EN 2434-001:2010EN 2434-001:2010 (E) 5 3 Terms and definitions For the purposes of this document
24、, the following terms and definitions apply. 3.1 gloss finish defined as 80 units measured at 60 according to EN 3840 test 27 4 Classification Not applicable. 5 Batch release and qualification testing 5.1 Batch release testing For batch acceptance the tests marked with an * in Table 1 to Table 5 sha
25、ll be performed. 5.2 Qualification tests For product qualification, all tests mentioned in this European Standard, in the Table 1 to Table 5, shall be performed. Table 1 General Requirements 1.001 Material description Two component cold curing polyurethane coating 1.002 Formulation Base a base conta
26、ining an hydroxyl functional resin, solvents and pigments. Activator a polyisocyanate activator solution Thinner if required 1.003 Form and method of production These components shall be mixed in simple whole number proportions, by volume or by weight, in accordance with the manufacturers instructio
27、ns. 1.004 Technical specification See EN 3840 1.009 Application and use Dry film thickness of (50 5) m 1.010 Storage See EN 3840 1.011 Shelf life See EN 3840 1.013 Processing conditions EN 23270 for 7 days before testing unless otherwise specified. Finish is applied to the primer following drying of
28、 the primer for 4 h to 16 h. 1.093 Quality assurance See EN 3840 1.094 Designation Polyurethane Finish EN 2434-01 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 BS EN 2434-001:2010EN 2434-001:2010 (E) 6 Table 2 P
29、hysical and chemical characteristics 2.014 Condition 1 EN ISO 1513 6 As received in original container * 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. 2.011 Application
30、properties and finish 1 None 3 EN 3837 A22024-T3 clad4 EN 3837 Process A EN 2334 Pickle 5 EN 2435-01 primer + finish to this standard * 7 Paint film shall show an opaque even finish, free from runs, sags, wrinkling, pinholing or other defect. 2.034 Sedimentation rating EN 3840 1 Test 5 6 base + acti
31、vator + thinner 7 ml V = 30 after 4 h 2.012 Pot life EN 3840 1 Test 20 followed by Test 8 1or Test 9 16 base + activator + thinner * 7 s or Pa s 2 x initial value after 4 h 2.035 Fineness of grind EN 3840 1 Test 10 6 base + activator * 7 m Gloss finish 15, other gloss levels 30 2.029 Viscosity EN 38
32、40 1 Test 8 1or Test 9 16 base + activator + thinner 7 s or Pa s 10 % 2, 32.027 Non volatile matter EN 3840 1 Test 1 7 base activator % 2 2, 3 2 2, 32.027 Volatile organic compound (VOC) content EN 3840 1 Test 49 6 base + activator + thinner 7 g/l reference value 2, 32.057 Density EN 3840 1 Test 3 6
33、 base * 7 g/cm3 2 2, 3, 52.057 Density hydrometer EN 3840 1 Test 4 6 activator + thinner 7 activator thinner * g/cm3 2 2, 3 2 2, 32.036 Flash point EN 3840 1 Test 7 7 base activator thinner C reference value 3 reference value 3 reference value 3(continued)BS EN 2434-001:2010EN 2434-001:2010 (E) 7 Ta
34、ble 2 Physical and chemical characteristics (concluded) 2.041 Surface dry time EN 3840 1 Test 21 3 EN 3837 A22024-T3 clad4 EN 3837 Process A EN 2334 Pickle 5 EN 2435-01 primer + finish to this standard 6 EN 23270 7 h 3 42.041 Drying time print-free EN 3840 1 Test 22 3 EN 3837 A22024-T3 clad4 EN 3837
35、 Process A EN 2334 Pickle 5 EN 2435-01 primer + finish to this standard 6 EN 23270 7 h 6 2.041 Through dry time EN 3840 1 Test 23 3 EN 3837 A22024-T3 clad4 EN 3837 Process A EN 2334 Pickle 5 EN 2435-01 primer + finish to this standard 6 EN 23270 * 7 h 162.999 Notes 1 Test 8 shall be used for non-thi
36、xotropic paints and test 9 for thixotropic paints. 2 The deviation is that compared to the reference value. 3The reference value is that established during qualification. 4 Unless otherwise specified. 5Test could also be used for activator and thinner if required. BS EN 2434-001:2010EN 2434-001:2010
37、 (E) 8 Table 3 Physico chemical characteristics 3.084 or 3.053 Colour EN 3840 1 Test 30 3 EN 3837 A22024-T3 clad4 EN 3837 Process A EN 2334 Pickle 5 EN 2435-01 primer + finish to this standard 6 EN 23270 * 7 E shall match the colour specified 3.088 or 3.083 Gloss 60 EN 3840 1 Test 27 3 EN 3837 A2202
38、4-T3 clad4 EN 3837 Process A EN 2334 Pickle 5 EN 2435-01 primer + finish to this standard 6 EN 23270 * 7 Gloss units shall match the gloss specified Table 4 Mechanical characteristics 4.082 Adhesion EN 3840 1 Test 24 3 EN 3837 A22024-T3 clad4 EN 3837 Process A EN 2334 Pickle 5 EN 2435-01 primer + fi
39、nish to this standard 6 EN 23270 7 Classification 1 4.076 Scratch resistance EN 3840 1 Test 29 3 EN 3837 A22024-T3 clad4 EN 3837 Process A EN 2334 Pickle 5 EN 2435-01 primer + finish to this standard 6 EN 23270 * 7 1 500 g primer not exposed BS EN 2434-001:2010EN 2434-001:2010 (E) 9 Table 5 Environm
40、ental characteristics 5.100 Resistance to fluids aEN 3840 1 Test 35 3 EN 3837 A22024-T3 clad4 EN 3837 Process A EN 2334 Pickle 5 EN 2435-01 primer + finish to this standard, panel scribed to substrate immediately before testing. 6 tri-n-butyl phosphate to EN 2379 G2 for 100h at (70 2) C 17 No bliste
41、ring, softening, lifting or other film defect Test 29 1 200 g primer not exposed 5.101 Water behaviour EN 3840 1 Test 34 3 EN 3837 A22024-T3 clad4 EN 3837 Process A EN 2334 Pickle 5 EN 2435-01 primer + finish to this standard, panel scribed to substrate immediately before testing. 6 water to EN ISO
42、3696 Grade 2 for 336 h 7 No blistering, softening, lifting or other film defect Test 24 Classification 1 Test 29 1 200 g primer not exposed 5.106 Artificial weathering EN 3840 1 Test 40 3 EN 3837 A22024-T3 clad4 EN 3837 Process A EN 2334 Pickle 5 EN 2435-01 primer + finish to this standard 6 UVB 313
43、, 4h light/4h humidity/total 500 h 7 Test 27 40 % reduction from initial value. Test 30 E 4 units 5.999 Notes 1 Additional fluids shall be subject of agreement between the manufacturer and the user. This page deliberately left blankThis page deliberately left blankBSI is the independent national bod
44、y responsible for preparing British Standardsand other standards-related publications, information and services. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.British Standards Institution (BSI)raising standards worldwideBSI Group
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