AS/NZS 3750.6:1995

1 - AS/NZS 3750.6:1995 PAINTS FOR STEEL STRUCTURES - FULL GLOSS POLYURETHANE (TWO-PACK)
4 - PREFACE
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 REFERENCED DOCUMENTS
6 - 1.3 DEFINITIONS
6 - 1.3.1 Component
6 - 1.3.2 Type 1 paint
7 - 1.3.3 Type 2 paint
7 - 1.3.4 Paint
7 - 1.3.5 Pot-life
7 - 1.4 SAFETY PRECAUTIONS
8 - SECTION 2 MATERIAL REQUIREMENTS
8 - 2.1 GENERAL
8 - 2.2 CONDITIONS OF TEST
8 - 2.3 LIQUID PAINT
8 - 2.3.1 Condition in container
8 - 2.3.2 Volume solids
8 - 2.3.3 Storage properties
8 - 2.3.4 Consistency
8 - 2.4 APPLICATION PROPERTIES
8 - 2.4.1 General
8 - 2.4.2 Brushing
10 - 2.4.3 Rolling
10 - 2.4.4 Spraying
10 - 2.4.5 Pot-life assessment
10 - 2.5 APPLIED FILM
10 - 2.5.1 Surface-dry time
10 - 2.5.2 Hard-dry time
10 - 2.5.3 Curing properties
10 - 2.5.4 Recoating properties
10 - 2.5.5 Gloss
10 - 2.5.6 Colour
10 - 2.5.7 Finish
10 - 2.5.8 Flexibility
11 - 2.5.9 Resistance to weathering
11 - 2.5.10 Accelerated tests
13 - SECTION 3 PACKAGING AND LABELLING
13 - 3.1 PACKAGING
13 - 3.2 LABELLING
14 - APPENDIX A - PURCHASING GUIDELINES
14 - A1 GENERAL
14 - A2 INFORMATION TO BE SUPPLIED WITH THE ENQUIRY OR ORDER
15 - APPENDIX B - GUIDANCE ON THE USE AND APPLICATION OF FULL GLOSS POLYURETHANE PAINT
15 - B1 SCOPE
15 - B2 MANUFACTURER’S TECHNICAL DATA
15 - B3 SAFETY PRECAUTIONS
16 - B4 TYPICAL USES
16 - B5 PRODUCT TYPES
16 - B6 MIXING
16 - B7 CURING CONDITIONS
17 - B8 POT-LIFE
17 - B9 TYPICAL FILM THICKNESS
17 - B10 RECOATING
17 - B11 STORAGE CONDITIONS
18 - APPENDIX C - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD
18 - C1 SCOPE
18 - C2 STATISTICAL SAMPLING
18 - C3 PRODUCT CERTIFICATION
18 - C4 SUPPLIER’S QUALITY SYSTEM
19 - C5 OTHER MEANS OF ASSESSMENT
20 - APPENDIX D - REFERENCED DOCUMENTS
22 - APPENDIX E - PREPARATION OF TEST PANELS
22 - E1 SCOPE
22 - E2 TEST PANEL MATERIAL
22 - E2.1 Tinplate
22 - E2.2 Steel
22 - E3 PREPARATION
22 - E3.1 Tinplate
22 - E3.2 Steel
23 - APPENDIX F - PREPARATION OF PANELS FOR TESTING RESISTANCE TO WEATHERING
23 - F1 SCOPE
23 - F2 TEST PANEL MATERIAL
23 - F3 PREPARATION OF PANEL
23 - F4 COATING THE PANEL
24 - APPENDIX G - ASSESSMENT OF RESISTANCE OF A FULL GLOSS POLYURETHANE PAINT TO ALKALI AND ACID
24 - G1 SCOPE
24 - G2 PRINCIPLE
24 - G3 REAGENTS
24 - G3.1 Sodium hydroxide solution (20 percent (m/V))
24 - G3.2 Sulfuric acid (rho20 1260 kg/m3)
24 - G4 APPARATUS
24 - G4.1 Cotton wool
24 - G4.2 Beaker
24 - G4.3 Scratch resistance equipment
24 - G4.4 Knife blade
24 - G4.5 Straightedge
25 - G5 PROCEDURE
25 - G6 TEST REPORT

Provides requirements for two-component solvent-borne full gloss polyurethane paints intended for use in the protection of iron and steel against external atmospheric corrosion. Includes high-build coatings.

This Standard specifies requirements for two-component, solvent-borne, full gloss polyurethane paints intended to be used primarily for the protection of iron and steel against exterior atmospheric corrosion. They are best applied by conventional air or airless spraying, but are also suitable for application by brush or roller.These paints are intended primarily for use as a topcoat in paint systems for the protection of iron and steel against corrosion involving wet and damp areas, high humidity, coastal/marine and industrial fallout. Polyurethane paints are in general more suitable for use in those exterior applications where it is desirable to retain colour and gloss in addition to providing corrosion resistance.Full gloss paint, specified in this Standard as Type 1 paint, is described as Paint Reference No. 26 in AS 2312 and may be used with the appropriate primer in systems MP5-D, MP5-H, MP5-K and MP6-C. High solids paint specified in this Standard as Type 2 paint, is described as Paint Reference No. 15 in AS 2312 and may be used with the appropriate primer in systems MP10-A, MP10-B, MP10-C, LP1-D, LP1-H, GZLP-E, GZLP-I and MSZLP-F.NOTES:1 Appendix A contains recommendations and advice on information which should be provided by the purchaser at the time of enquiry or order.2 Additional information on the use and application of polyurethane paints is contained in Appendix B.3 Alternative methods for determining compliance with this Standard are given in Appendix C.4 The paints are available in a range of colours.5 Type 1 paints typically have 45 percent nominal volume solids and are applied at 40-50 mm dry film thickness in a single coat. Type 2 paints typically have 70 percent nominal volume solids and are applied at 100-150 mm dry film thickness in a single coat.

First published as AS 2602-1983.
Jointly revised and redesignated as Joint Standard AS/NZS 3750.6:1995.