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1、 AS/NZS 3750.11:2009 Australian/New Zealand Standard Paints for steel structures Part 11: Chlorinated rubberHigh-build and gloss AS/NZS 3750.11:2009 AS/NZS 3750.11:2009 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee CH-003, Paints and Related Materials. It was a
2、pproved on behalf of the Council of Standards Australia on 16 March 2009 and on behalf of the Council of Standards New Zealand on 27 March 2009. This Standard was published on 20 April 2009. The following are represented on Committee CH-003: AUSTROADS Australasian Corrosion Association Australian Pa
3、int Approval Scheme Australian Paint Manufacturers Federation Australian Pipeline Industry Association Business New Zealand Engineers Australia Institution of Professional Engineers New Zealand Master Painters Australia Master Painters New Zealand Association National Association of Testing Authorit
4、ies Australia Water Corporation Western Australia Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments m
5、ay be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased. Detailed information about joint Australian/New Zealand Standards can b
6、e found by visiting the Standards Web Shop at .au or Standards New Zealand web site at www.standards.co.nz and looking up the relevant Standard in the on-line catalogue. Alternatively, both organizations publish an annual printed Catalogue with full details of all current Standards. For more frequen
7、t listings or notification of revisions, amendments and withdrawals, Standards Australia and Standards New Zealand offer a number of update options. For information about these services, users should contact their respective national Standards organization. We also welcome suggestions for improvemen
8、t in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Please address your comments to the Chief Executive of either Standards Australia or Standards New Zealand at the address shown on the back cover. This Standard was issued in dr
9、aft form for comment as DR 06351. The Standard is downloaded from Standard Sharing AS/NZS 3750.11:2009 Australian/New Zealand Standard Paints for steel structures Part 11: Chlorinated rubberHigh-build and gloss COPYRIGHT Standards Australia/Standards New Zealand All rights are reserved. No part of
10、this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Jointly published by Standards Australia, GPO Box 476, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 6020 I
11、SBN 0 7337 9124 7 Originated in Australia as AS 26721983. Previous edition AS/NZS 3750.11:1996. Second edition 2009. AS/NZS 3750.11:2009 2 PREFACE This Standard was prepared by the Joint Australia/New Zealand Standards Committee CH- 003, Paints and Related Materials to supersede AS/NZS 3750.11:1996.
12、 It is part of a series of product Standards for paints referred to in AS/NZS 2312, Guide to the protection of structural steel against atmospheric corrosion by the use of protective coatings. The objective of this Standard is to revise the 1996 edition by taking account of revisions to Standards su
13、ch as AS/NZS 2312 and the AS/NZS 1580 series of test methods. The following Standards in this series have been published: AS 2364 Paints for steel structuresHigh build epoxy (two-pack) 2672 Paints for steel structuresChlorinated rubber, high build 2673 Paints for steel structuresalkyd/micaceous iron
14、 oxide 2674 Paints for steel structuresEpoxy primer (two-pack) 3750 Paints for steel structures 3750.1 Part 1: Epoxy mastic (two-pack)For rusted steel 3750.2 Part 2: Ultra high-build paint 3884 Etch primers (single pack and two-pack) for pretreating metal surfaces 3885 Paints for steel structuresGal
15、vanized and zinc primedLatex 3887 Paints for steel structuresCoal tar epoxy (two-pack) AS/NZS Paints for steel structures 3750.3 Part 3: Heat-resistingExterior 3750.4 Part 4: Bitumen paint 3750.5 Part 5: Acrylic full gloss (two-pack) 3750.6 Part 6: Full gloss polyurethane (two-pack) 3750.7 Part 7: A
16、luminium paint 3750.8 Part 8: Vinyl paintsPrimer, high-build and gloss 3750.9 Part 9: Organic zinc-rich primer 3750.10 Part 10: Full gloss epoxy (two-pack) 3750.11 Part 11: Chlorinated rubberHigh-build and glass (this Standard) 3750.12 Part 12: Alkyd/micaceous iron oxide 3750.13 Part 13: Epoxy prime
17、r (two-pack) 3750.14 Part 14: High-build epoxy (two-pack) 3750.15 Part 15: Inorganic zinc silicate paint 3750.16 Part 16: Waterborne primer and paint for galvanized, zinc/aluminium alloy- coated and zinc-primed steel 3750.17 Part 17: Etch primers (single pack and two-pack) 3750.18 Part 18: Moisture
18、cure urethane (single-pack) systems 3750.19 Part 19: Metal primerGeneral purpose 3750.20 Part 20: Anticorrosive metal primerSolvent-borneLead and chromate free 3750.21 Part 21: UndercoatSolvent-borne 3750.22 Part 22: Full gloss enamelSolvent-borne 3750.23 Part 23: Semi-gloss enamelSolvent-borne The
19、terms normative and informative have been used in this Standard to define the application of the appendix to which they apply. A normative appendix is an integral part of a Standard, whereas an informative appendix is only for information and guidance. The Standard is downloaded from Standard Shari
20、ng 3 AS/NZS 3750.11:2009 CONTENTS Page SECTION 1 SCOPE AND GENERAL 1.1 SCOPE 4 1.2 REFERENCED DOCUMENTS 4 1.3 DEFINITIONS 4 1.4 SAFETY PRECAUTIONS5 SECTION 2 MATERIAL REQUIREMENTS 2.1 GENERAL 6 2.2 COMPOSITION6 2.3 CONDITIONS OF TEST.6 2.4 LIQUID PAINT.6 2.5 APPLICATION PROPERTIES.7 2.6 APPLIED FILM
21、 7 SECTION 3 PACKAGING AND LABELLING 3.1 PACKAGING 10 3.2 LABELLING. 10 APPENDICES A PURCHASING GUIDELINES 11 B GUIDANCE ON THE USE AND APPLICATION OF CHLORINATED RUBBER PAINT. 12 C REFERENCED DOCUMENTS 14 D PREPARATION OF TEST PANELS 16 E ASSESSMENT OF RESISTANCE OF CHLORINATED RUBBER PAINT TO DIST
22、ILLED WATER 17 AS/NZS 3750.11:2009 4 COPYRIGHT STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Australian/New Zealand Standard Paints for steel structures Part 11: Chlorinated rubberHigh-build and gloss S E C T I O N 1 S C O P E A N D G E N E R A L 1.1 SCOPE This Standard specifies requirements for a high
23、-build, chlorinated rubber based, intermediate or topcoat paint and a chlorinated rubber gloss finish paint for the protection of structural steel against exterior atmospheric corrosion in an industrial or marine environment. The high-build paints are suitable for application only by conventional ai
24、r or airless spraying, while the gloss paint is suitable for application by brush or spray. Paints specified in this Standard are described in AS/NZS 2312 as Paint References C14 and C25. Chlorinated rubber paints have very good resistance to most acids and alkali solutions but their high solvent/bi
25、nder ratio have OHS and environmental implications that limit their suitability. These paints are intended for use in paint systems for the protection of iron and steel against corrosion involving wet and damp areas, high humidity, marine and industrial fallout. NOTES: 1 These paints may be used as
26、detailed for systems CLR2, CLR3 and HDG600P4 in AS/NZS 2312. 2 Appendix A contains recommendations and advice on information that should be provided by the purchaser at the time of enquiry or order. 3 Additional information on the use and application of chlorinated rubber paints is contained in Appe
27、ndix B. 4 These paints are available in a range of colours. 5 The high-build paint is available pigmented with micaceous iron oxide (MIO). 1.2 REFERENCED DOCUMENTS A list of the documents referred to in this Standard is contained in Appendix C. 1.3 DEFINITIONS For the purpose of this Standard, the d
28、efinitions given in AS/NZS 2310 and the following apply. 1.3.1 Chlorinated rubber resin A material consisting of natural or synthetic rubber reacted with chlorine to give a product having a nominal chlorine content of 65% by mass. 1.3.2 Type 1 A high-build conventionally pigmented chlorinated rubber
29、 paint. The Standard is downloaded from Standard Sharing 5 AS/NZS 3750.11:2009 COPYRIGHT 1.3.3 Type 2 A high-build chlorinated rubber paint having a micaceous iron oxide (MIO) content of not less then 90% by mass of the pigment. 1.3.4 Type 3 A conventionally pigmented gloss chlorinated rubber paint
30、. 1.4 SAFETY PRECAUTIONS Chlorinated rubber coatings contain flammable solvents, which may present a risk to users. The manufacturers Material Safety Data Sheet (MSDS) should be adhered to. Personal protective equipment, as recommended by the manufacturers MSDS, should be worn during mixing and appl
31、ication. AS/NZS 3750.11:2009 6 COPYRIGHT S E C T I O N 2 M A T E R I A L R E Q U I R E M E N T S 2.1 GENERAL The paint shall comply with the requirements detailed in Clauses 2.2 to 2.6 inclusive. These properties and requirements are summarized in Table 1. 2.2 COMPOSITION Both high-build and gloss p
32、aints shall consist essentially of chlorinated rubber resin, unsaponifiable plasticizer, modifying resin (5 percent maximum), with appropriate pigments, stabilizer and volatile hydrocarbon solvents. MIO pigment shall comply with AS 2855 and shall retain its lamellar form in the paint film. 2.3 CONDI
33、TIONS OF TEST Unless otherwise specified in this Standard, the following test conditions shall apply: (a) The test panel material and its preparation shall be in accordance with Appendix D. (b) The size and type of test panels shall be as specified in Table 1. (c) Conditions for testing shall be in
34、accordance with AS/NZS 1580.101.5. (d) Type 1 and Type 2 paints shall be applied by spraying to achieve a dry film thickness of 100 m to 125 m per coat. Type 3 paint shall be applied by spraying to achieve a dry film thickness of 40 m to 50 m. Dry film thickness shall be determined using either AS/N
35、ZS 1580.108.1 or AS 1580.108.2. (e) Conditions for air-drying shall be in accordance with AS/NZS 1580.101.1. 2.4 LIQUID PAINT 2.4.1 Condition in container When the paint is tested in accordance with AS/NZS 1580.103.1 at the time of delivery from the manufacturer/supplier, it shall be free from gel,
36、coarse particles, skin and foreign matter. 2.4.2 Fineness of grind When determined in accordance with AS 1580.204.1, the fineness of grind reading of the paint shall be not greater than 75 m for Type 1 paints and 25 m for Type 3 paints. There is no fineness of grind requirement for Type 2 paints. 2.
37、4.3 Skin formation When examined in accordance with AS 1580.203.1, the paint shall show no skin formation. 2.4.4 Storage properties 2.4.4.1 Degree of settling When stored at 23 3C in sealed, unopened containers for 12 months from the date of manufacture, the rating for the settling of the paint when
38、 determined in accordance with AS/NZS 1580.211.1 shall be not less than 6. 2.4.4.2 Re-incorporation after storage When stored at 23 3C in sealed, unopened containers for 12 months from the date of manufacture, and tested in accordance with AS/NZS 1580.211.2, the paint shall be readily re-incorporate
39、d and shall be free from lumps, skin, gel and other defects. The Standard is downloaded from Standard Sharing 7 AS/NZS 3750.11:2009 COPYRIGHT 2.4.5 Consistency When thoroughly incorporated, the mixed paint shall have a consistency within the range specified by the manufacturer, as determined in acc
40、ordance with AS/NZS 1580.214.5 or other method as appropriate. 2.5 APPLICATION PROPERTIES 2.5.1 General Application properties shall be assessed using vertical steel test panels prepared in accordance with Appendix D. When applied in accordance with the manufacturers recommended methods of applicati
41、on, at the dry film thicknesses specified in Clause 2.3 Item (d), the applied film shall not run, streak, sag or exhibit other undesirable defects when dry. 2.5.2 Brushing When thinned, if necessary, and applied to a test panel in accordance with AS 1580.205.1, the test paint shall exhibit satisfact
42、ory brushing properties and freedom from defects. 2.5.3 Spraying When thinned, if necessary, in accordance with the manufacturers instructions, and applied to a test panel in accordance with AS/NZS 1580.205.2 or AS/NZS 1580.205.4 as appropriate, the test paint shall exhibit good spraying properties
43、and not clog the spray gun. 2.6 APPLIED FILM 2.6.1 Surface-dry time When applied to a prepared test panel and tested in accordance with AS/NZS 1580.401.1, one coat of the test paint shall have a surface-dry time not exceeding 2 h for high-build paint and 1 h for gloss paint. 2.6.2 Hard-dry time When
44、 applied to a prepared test panel and tested in accordance with AS 1580.401.5, one coat of the test paint shall have a hard-dry time not exceeding 24 h. 2.6.3 Recoating properties A prepared steel test panel is coated with test paint and air-dried for 24 h and then recoated with a further coat of te
45、st paint and air-dried for a further 24 h. When tested in accordance with AS/NZS 1580.404.1, the recoated panel shall show no evidence of wrinkling, patchiness or lifting of the previous coat. When tested in accordance with AS 1580.408.2 or AS 1580.408.4, as appropriate to the film thickness, the in
46、tercoat adhesion rating shall be 1. 2.6.4 Colour When a prepared steel test panel is coated with test paint, air-dried for a minimum of 24 h and assessed in accordance with AS/NZS 1580.601.1, the colour of the panel shall be an approximate match to that specified. NOTE: AS 2700S provides a range of
47、colour standards that are suitable for specification purposes. 2.6.5 Finish When a prepared steel test panel is coated with test paint, is air-dried for 24 h and examined in accordance with AS 1580.603.1, the film shall be of uniform colour and appearance and free from film defects. AS/NZS 3750.11:2
48、009 8 COPYRIGHT 2.6.6 Gloss For Type 3 paints only, when a coating of test paint, which has been applied to a glass test panel and air-dried for 7 days, is evaluated in accordance with AS/NZS 1580.602.2 using a 60 head, the specular gloss shall be not less than 50 gloss units. 2.6.7 Flexibility When
49、 a coat of test paint is applied to a tinplate test panel, air-dried for 7 days, and then tested in accordance with AS 1580.402.1 using a 12 mm diameter mandrel for paint Types 1 and 2, and, a 6 mm diameter mandrel for paint Type 3, the paint shall not crack and shall not be detached from the metal panel. 2.6.8 Resistance to distilled water When a steel test panel is prepared and tested in accordance with Appendix D, it shall meet the fo