ASD-STAN PREN 4687-2011 Aerospace series Paints and varnishes Chromate free non corrosion inhibiting two components cold curing primer for military application (Edition P 1).pdf

1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 4687 Edition P 1 July 2011 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.orgICS: Descriptors: ENGLISH VERS

2、ION Aerospace series Paints and varnishes Chromate free non corrosion inhibiting two components cold curing primer for military application Srie arospatiale Peinture et vernis Peinture primaire sans chromate non anticorrosive deux composants polymrisant temprature ambiante pour applications militair

3、es Luft- und Raumfahrt Beschichtungsstoffe Zweikomponenten Grundbeschichtung, chromatfrei, nicht korrosionshemmend, raumtemperaturhrtend, fr militrische Anwendung This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Associat

4、ion of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an e

5、xtent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for forma

6、l vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 1 July 2011 Commen

7、ts should be sent within six months after the date of publication to ASD-STAN Non-metallic Material Domain Copyright 2011 by ASD-STAN prEN 4687:2011 (E) 2 Contents Page Foreword 2 Introduction .3 1 Scope 4 2 Normative references 4 3 Terms and definitions .6 4 Surface pretreatments .6 5 Classificatio

8、n 6 6 Batch release and qualification testing .7 7 Requirements for fibre reinforced composites 17 8 Designation 17 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Non-metallic Material Domain. After inquiries and votes carried out in accordance with the rules of

9、 ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 4687:2011 (E) 3 Introduction The requirements concerning fibre reinforced composite substrates are established in Clause 7. prEN 4687:2011 (E) 4 1 Scope This European Standard defines the

10、 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. 2 Normative references

11、 The following referenced documents are indispensable for the 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 2101, Aerospace series Chromic acid anodizing

12、 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 3837, Aerospace series Paints and varnishes Nature and method for

13、 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, Aerospace series Non-metallic materials Paints and varnishes Test methods D

14、etermination of the effect of thermal exposure 1)EN 4688, Aerospace series Paints and varnishes Corrosion inhibiting two components cold curing primer for military application 1) EN 4689, Aerospace series Paints and varnishes Two components cold curing polyurethane finish High flexibility and chemic

15、al agent resistance for military application 1)EN ISO 1513, Paints and varnishes Examination and preparation of test samples 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, Pa

16、ints, 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). prEN 4687:2011 (E) 5 EN ISO 2431, Paints and varnishes Determination of flow time

17、 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 Determination of density Part 2: Immersed body (plummet) method EN ISO 2811-3, Paints and varnishes Determination of density Part 3: Oscillation method EN I

18、SO 2811-4, Paints and varnishes Determination of density Part 4: Pressure cup method EN ISO 2812-1, Paints and varnishes Determination of resistance to liquids Part 1: Immersion in liquids other than water EN ISO 2812-2, Paints and varnishes Determination of resistance to liquids Part 2: Water immer

19、sion 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 and plastics Determination of non-volatile-matter content ISO 3270, Paints and varnishes and their raw materials Temperatures and humidities for c

20、onditioning and testing 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 EN ISO 3680, Determination of flash

21、/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 6270-1, Paints and varnishes Determ

22、ination of resistance to humidity Part 1: Continuous condensation ISO 7724-1, Paints and varnishes Colorimetry 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 EN ISO 9117

23、-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 9514, Paints and varnishes Determination of the pot life of multicomponent coating systems Prepara

24、tion and conditioning of samples and guidelines for testing EN ISO 11890-1, Paints and varnishes Determination of volatile organic compound (VOC) content Part 1: Difference method prEN 4687:2011 (E) 6 EN ISO 11890-2, Paints and varnishes Determination of volatile organic compound (VOC) content Part

25、2: Gas-chromatographic method MIL-PRF-5606H, Performance specification: Hydraulic fluid, petroleum base; aircraft, missile, and ordnance. (NATO H-515) 2)MIL-PRF-6081D, Performance specification: Lubricating oil, jet engine. (NATO O-133) 2)MIL-PRF-23699F, Performance specification: Lubricating oil, a

26、ircraft 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,

27、 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 pur

28、poses 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 Procedu

29、re 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 (V

30、OC 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/ prEN 4687:2011 (E) 7 6 Batch release and qualification testing 6.1 General T

31、he general requirements for qualification and batch release testing shall be in accordance with (i.a.w.) EN 3840 and the applicable appendix for the specific material. 6.2 Qualification tests For product qualification, all tests defined in this standard, in the Tables 2 to 7, shall be performed. A m

32、inimum 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

33、.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

34、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 Form

35、ulation Base Activator Thinner if appropriate 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 See EN 3840. Storage stability See EN 3840. Application and u

36、se Dry film thickness of (25 5) m 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 assuranc

37、e See EN 3840. Designation Chromate free primer Packaging See EN 3840. Health and safety See EN 3840. prEN 4687:2011 (E) 8 Table 2 Physical and chemical characteristics Delivery conditions Tests according to EN 3840 Test Test criteria Test requirements * Condition Test method EN ISO 1513 (as receive

38、d in the original container) Requirement Shall be free from contaminants and show no skinning, gelling, hard settlement, or other defect. 1 * Non volatile matter Test method EN ISO 3251 Requirement % m/m Base Activator Thinner 2 % reference value a b 2 % reference value a b 49 Volatile organic conte

39、nt (VOC) Test method EN ISO 11890-1 for Type I / Type II EN ISO 11890-2 for Type III Coating Base Activator Thinner Requirement g/l reference value a7 Flash point Test method EN ISO 3679 or EN ISO 3680 Requirement C Base Activator Thinner reference value a reference value a reference value a8 * Flow

40、 time Test method EN ISO 2431 Coating Base Activator Thinner Requirement s 10 % reference value a b5 Sedimentation rating Test method EN 3847 (23 2) C / (50 5) % RH Coating Base Activator Thinner Requirement ml/4 h 30 3 * 4 * Density Test method EN ISO 2811-1 to EN ISO 2811-4 or EN ISO 3675 Test con

41、dition (23 2) C / (50 5) % RH Requirements g/cm3Base Activator Thinner a a a 10 Fineness of grind Test method EN ISO 1524 Requirement m Base Activator Thinner cc continued prEN 4687:2011 (E) 9 Table 2 Physical and chemical characteristics Delivery conditions (continued) Tests according to EN 3840 Te

42、st Test criteria Test requirements * Application, properties and finish Test method None Panel EN 3837 A1or EN 3837 A2(2024-T3 unclad or 2024-T3 clad) Pretreatment EN 3837 Procedure A or B or C Coating Coating to this standard. Test condition (23 2) C / (50 5) % RH Requirements The paint film applie

43、d shall result in an opaque even finish free from runs, sags, wrinkling, pinholing or other defects. 20 * Pot life Test method EN ISO 9514 Coating Base Activator Thinner Requirement s or Pa.s a21 * Drying time at the surface Test method EN ISO 9117-3 Panel EN 3837 A1or EN 3837 A2(2024-T3 unclad or 2

44、024-T3 clad) Pretreatment EN 3837 Procedure A or B or C Coating Coating to this standard. Requirement h Type I 1 Type II 2,5 Type III 2 Type IV aType V a22 * Drying time Print free test Test method EN ISO 3678 Panel EN 3837 A1or EN 3837 A2(2024-T3 unclad or 2024-T3 clad) Pretreatment EN 3837 Procedu

45、re A or B or C Coating Coating to this standard. Requirement h Type I 4 using a mass of 1 000 g Type II 5 using a mass of 1 000 g Type III 4 using a mass of 1 000 g Type IV aType V acontinued prEN 4687:2011 (E) 10 Table 2 Physical and chemical characteristics Delivery conditions (concluded) Tests ac

46、cording to EN 3840 Test Test criteria Test requirements 23 * Through dry time Test method EN ISO 9117-1 (using 1 500 g mass) Panel EN 3837 A1or EN 3837 A2(2024-T3 unclad or 2024-T3 clad) Pretreatment EN 3837 Procedure A or B or C Coating Coating to this standard. Requirement h 16, using a mass of 1

47、500 g * See 6.3. a The reference value is that established during qualification.bThe deviation is that compared to the reference value. cTo be agreed between manufacturer and customer. Table 3 Mechanical and physical characteristics Dried film Tests according to EN 3840 Test Test criteria Test requi

48、rements 24 * Cross cut adhesion Test method EN ISO 2409 Panel EN 3837 A1or EN 3837 A2(2024-T3 unclad or 2024-T3 clad) Pretreatment EN 3837 Procedure B and C (CAA and CCC) Coating Coating to this standard. Requirement Classification 0 29 * Scratch resistance Test method EN ISO 1518 Panel EN 3837 A1or EN 3837 A2(2024-T3 unclad or 2024-T3 clad) Pretreatment EN 3837 Procedures B and C (CAA and CCC) Coating Coating to this standard. Requirement 1 500 g acontinued prEN 4687:2011 (E) 11 Table 3 Mechanical and physical characteristics Dried film (concluded) Tests according to EN 3840 Test Test