AS/NZS 3750.21:2008

Abstract

Specifies requirements for solvent-borne undercoat paints as part of a system for the protection of iron and steel against atmospheric corrosion.

Scope

This Standard sets out requirements for solvent-borne undercoat paints as part of a system for the protection of iron and steel against atmospheric corrosion. Typically available in white or grey colour, they are intended to be applied, as supplied, using brush, roller or by spray.
This Standard applies to paints intended for the undercoating of metal surfaces primed in accordance with AS/NZS 3750.19 or AS/NZS 3750.20 that are to be topcoated with a semi-gloss or full gloss film in accordance with AS/NZS 3750.22 or AS/NZS 3750.23 that will provide resistance to weathering, washing and intermittent contact with petrol or mineral oils. Typical applications include machinery and the superstructures of ships.
NOTE: Undercoats as part of a system for the protection of steel are not considered necessary according to AS/NZS 2312. However, for reasons such as additional filling properties, opacity, ease of sanding to obtain a finer finish, they may be incorporated in an alkyd system.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Pending Revision indicates that as a result of the Aged Standards review process, the document needs updating. If no project proposal, meeting the quality criteria, is received within the 12 month timeframe, the document shall be withdrawn.
Pages
ISBN
Committee	CH-003
Supersedes	AS 4025.2-1993 DR 04193