1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 4689:2012Aerospace series Paints andvarnishes Two componentscold curing polyurethane finish High flexibility and chemicalagent resistance for militaryapplicationBS EN 4689:
2、2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4689:2012.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/65/-/3, Paints, Surface Finish and ProtectiveTreatments for Aerospace Purposes.A list of organizations represented on t
3、his committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 76851 4ICS 4
4、9.040Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June 2012.Amendments issued since publicationDate Text affectedBS EN 4689:2012EUROPEAN STANDARD NORME EUROP
5、ENNE EUROPISCHE NORM EN 4689 March 2012 ICS 49.040 English Version Aerospace series - Paints and varnishes - Two components cold curing polyurethane finish - High flexibility and chemical agent resistance for military application Srie arospatiale - Peinture et vernis - Peinture de finition polyurtha
6、ne deux composants polymrisant temprature ambiante - Haute flexibilit et rsistance aux substances chimiques pour applications militaires Luft- und Raumfahrt - Anstrichstoffe - Zweikomponenten Polyurethan- Decklack, raumtemperaturhrtend - Hohe Elastizitt und Bestndigkeit gegen Chemikalien fr militris
7、che 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 bibli
8、ographical 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 respons
9、ibility 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, Gree
10、ce, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG
11、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 4689:2012: EBS EN 4689:2012EN 4689:2012 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 T
12、erms and definitions .8 4 Surface pretreatments .8 5 Classification 8 6 Batch release and qualification testing .8 7 Requirements for fibre reinforced composites . 26 8 Designation . 26 BS EN 4689:2012EN 4689:2012 (E) 3 Foreword This document (EN 4689:2012) has been prepared by the Aerospace and Def
13、ence Industries Association 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 pres
14、entation 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 September 2012, and conflicting national standards shall be withdrawn at the latest by September 2012. Attention is drawn to the po
15、ssibility 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 following countries
16、 are bound to implement this 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,
17、 Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4689:2012EN 4689:2012 (E) 4 Introduction The requirements concerning fibre reinforced composite substrates are established in Clause 7. BS EN 4689:2012EN 4689:2012 (E) 5 1 Scope This European Standard specifies the requirements for a
18、two components flexible polyurethane top coat to be applied over EN 4687 and/or EN 4688 primers mainly for exterior aerospace applications. The primer and the finish tested to this specification will be from the same manufacturer applied in accordance with (i.a.w.) their instruction / Table 1. 2 Nor
19、mative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments
20、) applies. EN 2101, Aerospace series Chromic acid anodizing of aluminium and wrought aluminium alloys EN 2334, Aerospace series Chromic-sulphuric acid pickle of aluminium and aluminium alloys EN 2437, Aerospace series Chromate conversion coatings (yellow) for aluminium and aluminium alloys EN 2436-0
21、06, Aerospace series Paints and varnishes Corrosion resistant chromate-free two component cold curing epoxy primer Part 006: High corrosion resistance for military application EN 3212, Aerospace series Paints and varnishes Corrosion test by alternate immersion in a buffered sodium chloride solution
22、EN 3837, Aerospace series Paints and varnishes Nature and method for surface preparation of test pieces in aluminium alloys 1)EN 3840, Aerospace series Paints and varnishes Technical specification EN 3847, Aerospace series Paints and varnishes Determination of sedimentation rating 1)EN 4160, Aerospa
23、ce series Non-metallic materials Paints and varnishes Test methods Determination of the effect of thermal exposure 1)EN 4687, Aerospace series Paints and varnishes Chromate free non corrosion inhibiting two components cold curing primer for military application EN 4688, Aerospace series Paints and v
24、arnishes Corrosion inhibiting two components cold curing primer for military application EN 6042, Aerospace series Organic compounds Test method Analysis by infrared spectroscopy 1)EN ISO 1513, Paints and varnishes Examination and preparation of test samples 1) Published as ASD-STAN Prestandard at t
25、he date of publication of this standard (www.asd-stan.org). BS EN 4689:2012EN 4689:2012 (E) 6 EN ISO 1518, Paints and varnishes Scratch test 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 in
26、ks Determination of fineness of grind EN ISO 2409, Paints and varnishes Cross-cut test EN ISO 2431, Paints and varnishes Determination of flow time by use of flow cups EN ISO 2811-1, Paints and varnishes Determination of density Part 1: Pyknometer method EN ISO 2811-2, Paints and varnishes Determina
27、tion of density Part 2: Immersed body (plummet) method EN ISO 2811-3, Paints and varnishes Determination of density Part 3: Oscillation method EN ISO 2811-4, Paints and varnishes Determination of density Part 4: Pressure cup method EN ISO 2812-1, Paints and varnishes Determination of resistance to l
28、iquids Part 1: Immersion in liquids other than water EN ISO 2812-2, Paints and varnishes Determination of resistance to liquids Part 2: Water immersion method EN ISO 2813, Paints and varnishes Determination of specular gloss of non-metallic paint films at 20, 60 and 85 EN ISO 3251, Paints, varnishes
29、 and plastics Determination of non-volatile-matter content EN ISO 3675, Crude petroleum and liquid petroleum products Laboratory determination of density Hydrometer method EN ISO 3678, Paints and varnishes Print-free test EN ISO 3679, Determination of flash point Rapid equilibrium closed cup method
30、EN ISO 3680, Determination of flash/no flash Rapid equilibrium closed cup method EN ISO 4628-2, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 2: Assessment of degree of blistering EN ISO
31、4628-8, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 8: Assessment of degree of delamination and corrosion around a scribe EN ISO 6270-1, Paints and varnishes Determination of resistance
32、 to humidity Part 1: Continuous condensation EN ISO 9117-1, Paints and varnishes Drying tests Part 1: Determination of through-dry state and through-dry time EN ISO 9117-3, Paints and varnishes Drying tests Part 3: Surface-drying test using ballotini EN ISO 9227, Corrosion tests in artificial atmosp
33、heres Salt spray tests BS EN 4689:2012EN 4689:2012 (E) 7 EN ISO 9514, Paints and varnishes Determination of the pot life of multicomponent coating systems Preparation and conditioning of samples and guidelines for testing EN ISO 11507, Paints and varnishes Exposure of coatings to artificial weatheri
34、ng Exposure to fluorescent UV lamps and water EN ISO 11890-1, Paints and varnishes Determination of volatile organic compound (VOC) content Part 1: Difference method EN ISO 11909, Binders for paints and varnishes Polyisocyanate resins General methods of test ISO 7724-1, Paints and varnishes Colorime
35、try Part 1: Principles ISO 7724-2, Paints and varnishes Colorimetry Part 2: Colour measurement ISO 7724-3, Paints and varnishes Colorimetry Part 3: Calculation of colour differences MIL-PRF-5606H, Performance specification: Hydraulic fluid, petroleum base; aircraft, missile, and ordnance. (NATO H-51
36、5) 2)MIL-PRF-6081D, Performance specification: Lubricating oil, jet engine. (NATO O-133) 2)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 (
37、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, sol
38、vent-base 3)DEF STAN 68-10, Corrosion Preventive, Water Displacing NATO Code: C-634 Joint Service Designation: PX-24 STANAG 4477, Specification for Paints and Paint Systems, Resistant to Chemical Agents and Decontaminants, for the Protection of Aerospace Military Equipment 4)BS 1595-1:1986, Propan-2
39、-ol (isopropyl alcohol) for industrial use Part 1: Specification for propan-2-ol (isopropyl alcohol). 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/. 4) Published by: NATO
40、EU MIL. - National (US) Mil. North Atlantic Treaty Organization http:/www.nato.int/docu/standar d.htm. BS EN 4689:2012EN 4689:2012 (E) 8 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, th
41、e 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 : Chromate acid anodizing in accordance with EN 2101; EN 3837 Procedure C : Chromate conversion coating in accordance with
42、EN 2437. 5 Classification The top coat is classified according to the following types: TYPE I: Standard solvent content ( 680 g/l); TYPE II: Low volatile organic content ( 420 g/l); TYPE III: Waterborne ( 350 g/l). 6 Batch release and qualification testing 6.1 General The general requirements for qu
43、alification and batch release testing shall be in accordance with EN 3840. A minimum of three batches shall be tested for qualification purposes. 6.2 Qualification tests For product qualification, all tests defined in this standard, in the Tables 2 to 10, shall be performed. The test work to be unde
44、rtaken for product qualification shall be in accordance with this specification. In addition, the requirements for qualification of coatings in specific colours/gloss levels, shall be as defined in EN 3840. 6.3 Batch release testing The Manufacturer shall give evidence on the Test Report or the Cert
45、ificate 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 top coat type III according to this specification shall be compatible to all primers q
46、ualified to EN 4687 and EN 4688. All tests to demonstrate the compatibility is defined in Tables 8 to 10 shall be performed. BS EN 4689:2012EN 4689:2012 (E) 9 Table 1 General requirements Material description Two components cold curing polyurethane top coat Formulation Base: hydroxyl functional poly
47、ester or acrylic resins Activator: a polyisocyanate activator solution Thinner: if required Preparation These components shall be mixed in simple whole number proportions, by volume or weight, in accordance with the manufacturerss instructions. Technical specification EN 3840 Marking EN 3840 Storage
48、 stability EN 3840 Application and use Dry film thickness of (50 5) m (with primer SP-J-513-A-0013 or SP-J-513-A-0016 (25 5) m will be 65 m to 85 m) Drying conditions (23 2) C / (50 5) % RH for 7 (seven) days before testing. Finish is applied to the primer (EN 4687 or EN 2436-006) following drying u
49、p the primer for 4 (four) hours to 6 (six) hours as specified. Quality assurance EN 3840 Designation Flexible polyurethane top coat Packaging EN 3840 Health and safety EN 3840 BS EN 4689:2012EN 4689:2012 (E) 10 Table 2 Physical and chemical characteristics Delivery conditions Tests according to EN 3840 Test Test criteria Test requirements * Condition Test method EN ISO
