ISO 8179-2:2017 PDF

Ductile iron pipes, fittings, accessories and their joints — External zinc-based coating — Part 2: Zinc-rich paint

Title (English):

ISO 8179-2:2017

Ductile iron pipes, fittings, accessories and their joints — External zinc-based coating — Part 2: Zinc-rich paint

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 7
Publication date:: July 25, 2017
Edition:: ISO IS 8179 edition 2 version 1
ICS:: 23.040.10

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Description (English):

ISO 8179-2:2017 specifies an external protective coating system which is factory-applied to ductile iron pipeline components as specified in ISO 2531, ISO 7186 and ISO 16631. This coating system comprises a zinc-rich paint followed by a finishing layer that can be bituminous paint or synthetic resin compatible with zinc rich paint coating. NOTE ISO 8179-1 addresses metallic zinc-based coatings.

Technical details

Technical committee: ISO/TC 5/SC 2 - Cast iron pipes, fittings and their joints
SKU: ISO 8179-2:2017

Abstract

Overview

ISO 8179-2:2017 specifies a factory-applied external protective coating system for ductile iron pipes, fittings, accessories and their joints using zinc-rich paint with an overlying finishing layer (bituminous paint or compatible synthetic resin). The standard defines material composition, application methods, inspection and test procedures to ensure long-term corrosion protection of ductile iron pipeline components used in water and sewerage systems.

Key topics and technical requirements

Coating composition: Zinc-rich paint with at least 85% zinc by mass in the dry film, followed by a finishing layer compatible with the zinc-rich paint.
Surface condition: Substrate must be dry and free from rust, oil or non-adhering contaminants; application may be on as-cast annealed or blast-cleaned surfaces.
Application methods: Coating may be applied by spraying or brushing; finishing layer also by spray or brush.
Zinc-rich paint mass requirements:
- Standard: mean mass ≥ 235 g/m² with local minimum 210 g/m².
- Low-corrosive areas (by agreement): mean 150 g/m² with local minimum 130 g/m².
Finishing layer thickness: mean dry film thickness ≥ 70 μm with local minimum 50 μm.
Acceptable damage: Handling damage allowed if area

Related standards

Other ISO standards

Overview

Key topics and technical requirements

Coating composition: Zinc-rich paint with at least 85% zinc by mass in the dry film, followed by a finishing layer compatible with the zinc-rich paint.
Surface condition: Substrate must be dry and free from rust, oil or non-adhering contaminants; application may be on as-cast annealed or blast-cleaned surfaces.
Application methods: Coating may be applied by spraying or brushing; finishing layer also by spray or brush.
Zinc-rich paint mass requirements:
- Standard: mean mass ≥ 235 g/m² with local minimum 210 g/m².
- Low-corrosive areas (by agreement): mean 150 g/m² with local minimum 130 g/m².
Finishing layer thickness: mean dry film thickness ≥ 70 μm with local minimum 50 μm.
Acceptable damage: Handling damage allowed if area

ISO 8179-2:2017 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

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Abstract

Overview

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