BS EN ISO 12944-4:2017:2018 Edition
$142.49
Paints and varnishes. Corrosion protection of steel structures by protective paint systems – Types of surface and surface preparation
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 30 |
This document covers the following types of surfaces of steel structures consisting of carbon or low-alloy steel, and their preparation:
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uncoated surfaces;
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surfaces thermally sprayed with zinc, aluminium or their alloys;
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hot-dip-galvanized surfaces;
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zinc-electroplated surfaces;
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sherardized surfaces;
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surfaces painted with prefabrication primer;
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other painted surfaces.
This document defines a number of surface preparation grades but does not specify any requirements for the condition of the substrate prior to surface preparation.
Highly polished surfaces and work-hardened surfaces are not covered by this document.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 4 | European foreword Endorsement notice |
| 7 | Foreword |
| 8 | Introduction |
| 9 | 1 Scope 2 Normative references |
| 10 | 3 Terms and definitions |
| 12 | 4 General 5 Types of surface to be prepared 5.1 General 5.2 Uncoated surfaces 5.3 Metal-coated surfaces 5.3.1 Thermally sprayed surfaces 5.3.2 Hot-dip-galvanized surfaces 5.3.3 Zinc-electroplated surfaces |
| 13 | 5.3.4 Sherardized surfaces 5.4 Surfaces painted with prefabrication primer 5.5 Other painted surfaces 5.6 Surfaces with chemical treatment 6 Surface preparation methods 6.1 General 6.2 Water, solvent and chemical cleaning 6.2.1 Water cleaning 6.2.2 Steam cleaning |
| 14 | 6.2.3 Emulsion cleaning 6.2.4 Alkaline cleaning 6.2.5 Organic-solvent cleaning 6.2.6 Stripping 6.2.7 Acid pickling 6.2.8 Chemical treatment 6.3 Mechanical cleaning 6.3.1 Hand-tool cleaning 6.3.2 Power-tool cleaning |
| 15 | 6.3.3 Blast-cleaning |
| 16 | 6.3.4 Water jetting 7 Surface preparation grades 7.1 General |
| 17 | 7.2 Uncoated surfaces 7.3 Metal-coated surfaces 7.4 Surfaces painted with prefabrication primer 7.5 Other painted surfaces |
| 18 | 8 Surface profile (roughness) and surface profile grading 9 Assessment of prepared surfaces 10 Temporary protection of prepared surfaces from corrosion and/or contamination 11 Preparation of temporarily or partly protected surfaces before application of further coatings |
| 19 | 12 Preparation of hot-dip-galvanized surfaces 12.1 Unweathered surfaces 12.2 Weathered surfaces 13 Preparation of thermally sprayed metal (zinc and aluminium) surfaces 14 Preparation of zinc-electroplated and sherardized surfaces |
| 20 | 15 Preparation of other coated surfaces 16 Recommendations regarding pollution and the environment 17 Health and safety |
| 21 | Annex A (normative) Standard preparation grades for primary (overall) surface preparation |
| 23 | Annex B (normative) Standard preparation grades for secondary (partial) surface preparation |
| 25 | Annex C (informative) Procedures for removal of extraneous layers and foreign matter, native layers and contaminants |
| 27 | Bibliography |
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BS EN ISO 12944-4:2017 – TC:2020 Edition
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