AS 4025.4-1994

1 - AS 4025.4:1994 PAINTS FOR EQUIPMENT INCLUDING SHIPS - SOLVENT-BORNE - LEAD AND CHROMATE FREE - ANTICORROSIVE METAL PRIMER
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE
5 - 2 REFERENCED DOCUMENTS
5 - 3 DEFINITIONS
5 - 3.1 Frying
5 - 3.2 Working up
5 - 4 MATERIAL REQUIREMENTS
5 - 4.1 Composition
6 - 4.2 Conditions of test
6 - 4.3 Liquid paint
6 - 4.3.1 Condition in container
6 - 4.3.2 Fineness of grind
6 - 4.3.3 Volume solids
6 - 4.3.4 Susceptibility to formation of skin
6 - 4.3.5 Storage stability
6 - 4.3.6 Consistency
6 - 4.3.7 Density
6 - 4.4 Application properties
6 - 4.4.1 General
6 - 4.4.2 Brushing
6 - 4.4.3 Rolling
7 - 4.4.4 Spraying
7 - 4.5 Applied film
7 - 4.5.1 Dry times
7 - 4.5.2 Recoating properties and finish
7 - 4.5.3 Scratch resistance
7 - 4.5.4 Adhesion to substrate
7 - 4.5.5 Colour
7 - 4.5.6 Resistance to weathering
7 - 4.5.6.1 General
7 - 4.5.6.2 Weathering
7 - 4.5.7 Salt droplet test
7 - 5 PACKAGING
9 - 6 MARKING
10 - 7 ADDITIONAL MARKING
11 - APPENDIX A - PURCHASING GUIDELINES
11 - A1 SCOPE
11 - A2 GENERAL
11 - A3 INFORMATION TO BE SUPPLIED WITH THE ENQUIRY OR ORDER
12 - APPENDIX B - INFORMATION ON THE USE AND APPLICATION OF PRIMERS
12 - B1 SCOPE
12 - B2 MANUFACTURER’S TECHNICAL DATA
12 - B3 SAFETY PRECAUTIONS
12 - B4 APPLICATION AND USE
13 - APPENDIX C - LIST OF REFERENCED DOCUMENTS
15 - APPENDIX D - PREPARATION OF TEST PANELS FOR RESISTANCE TO WEATHERING
15 - D1 SCOPE
15 - D2 TEST PANEL MATERIALS
15 - D3 PREPARATION OF PANELS
15 - D4 COATING THE PANEL

Specifies requirements for solvent-borne, lead and chromate free, anticorrosive metal primer applied to ships and equipment.

This Standard sets out requirements for solvent-borne pigmented metal priming paints for ships and equipment. They are intended to be applied as supplied by brush, roller or spray. The Standard deals with primers that are surface dry within 2 h and may be overcoated after 24 h.This Standard applies to paints intended for the priming of well-cleaned steel or aluminium surfaces, that are to be undercoated with paint specified by AS 4025.2 and then topcoated with a film of semi-gloss enamel to AS 4025.3 or full gloss enamel to AS 4025.1, that will provide resistance to weathering, washing and intermittent contact with petrol or mineral oils. Typical applications include machinery and the superstructures of ships.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 metal primers is given in Appendix B.

First published as AS 4025.4-1994.