AS 3750.2-1994

1 - AS 3750.2-1994 PAINTS FOR STEEL STRUCTURES
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 Gel time
6 - 1.3.3 Pot-life
6 - 1.3.4 Ultra high-build
7 - 1.3.5 Ultra high-build paint (UHB paint)
7 - 1.4 SAFETY PRECAUTIONS
7 - 1.4.1 Type I paint
7 - 1.4.2 Type II and III paints
8 - SECTION 2 MATERIALS 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 Mass solids
8 - 2.3.3 Storage properties
8 - 2.4 SPRAY APPLICATION PROPERTIES
8 - 2.4.1 General
8 - 2.4.2 Sprayability and sag resistance
8 - 2.4.3 Pot-life
8 - 2.5 APPLIED FILM
8 - 2.5.1 General
9 - 2.5.2 Hardness
9 - 2.5.3 Impact resistance
9 - 2.5.4 Abrasion resistance
9 - 2.5.5 Adhesion
9 - 2.5.6 Cathodic disbondment resistance
9 - 2.6 MIXING RATIO
9 - 2.7 ADDITIONAL TESTS
11 - SECTION 3 PACKAGING AND LABELLING
11 - 3.1 PACKAGING
11 - 3.2 LABELLING
12 - APPENDIX A - PURCHASING GUIDELINES
12 - A1 GENERAL
12 - A2 INFORMATION TO BE SUPPLIED WITH THE ENQUIRY OR ORDER
13 - APPENDIX B - GUIDANCE ON THE USE AND APPLICATION OF UHB PAINT
13 - B1 SCOPE
13 - B2 MANUFACTURER’S TECHNICAL DATA
13 - B3 SAFETY PRECAUTIONS
13 - B3.1 Type I paint
13 - B3.2 Type II and Type III paint
14 - B4 APPLICATION AND TYPICAL USES
15 - APPENDIX C - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD
15 - C1 SCOPE
15 - C2 STATISTICAL SAMPLING
15 - C3 PRODUCT CERTIFICATION
15 - C4 SUPPLIER’S QUALITY SYSTEM
16 - C5 OTHER MEANS OF ASSESSMENT
17 - APPENDIX D - REFERENCED DOCUMENTS
19 - APPENDIX E - PREPARATION OF TEST PANELS
19 - E1 SCOPE
19 - E2 TEST PANEL MATERIAL
19 - E3 PREPARATION
20 - APPENDIX F - DETERMINATION OF THE GEL TIME OF POLYESTER AND VINYL ESTER UHB PAINT
20 - F1 SCOPE
20 - F2 PRINCIPLE
20 - F3 REAGENT
20 - F4 APPARATUS
20 - F4.1 Gel time meter
20 - F4.2 Constant temperature bath
20 - F4.3 Waxed paper cups
20 - F4.4 Pipette
20 - F4.5 Top pan balance
20 - F4.6 Timing device
20 - F4.7 Thermometer
20 - F5 PROCEDURE
22 - APPENDIX G - ADDITIONAL TESTS
22 - G1 SCOPE
22 - G2 GENERAL
22 - G3 TENSILE STRENGTH AT BREAK
22 - G4 COMPRESSIVE STRENGTH
22 - G5 PERCENT ELONGATION AT BREAK
22 - G6 FLEXURAL STRENGTH AT BREAK
22 - G7 MODULUS OF ELASTICITY

Provides requirements for ultra high-build paints for the protection of iron and steel against exterior corrosion in aggressive service conditions.

This Standard specifies requirements for two-component ultra high-build paints for the protection of iron and steel against exterior corrosion in aggressive service conditions. They are suitable for application only by using high pressure, high volume airless spray equipment. Paints specified in this Standard comply with the requirements of Paint type 34 in AS 2312. These paints are produced in a limited colour range, usually white, grey or black.Ultra high-build (UHB) paints are classified as follows:(a) Type I, two-pack epoxy.(b) Type II, polyester.(c) Type III, vinyl ester.Ultra high-build paints are not intended to provide an aesthetically pleasing finish, but should provide long-term protection in aggressive atmospheric exposures for periods in excess of 15 years.NOTES:1 These paints may be used as detailed for system LP 5A, in AS 2312.2 Appendix A contains recommendations and advice on information which should be provided by the purchaser at the time of enquiry or order.3 Additional information on the use and application of ultra high-build paints is contained in Appendix B.4 Methods for determining compliance with this Standard are given in Appendix C.