BS ISO 18768-2-2022 PDF

Full title and description

STB BS ISO 18768-2-2022 — Organic coatings on aluminium and its alloys — Methods for specifying decorative and protective organic coatings on aluminium — Part 2: Liquid coatings. This document gives requirements and test methods for specifying liquid organic coatings applied to aluminium and aluminium alloys for decorative and protective applications, including characteristic properties, testing methods and minimum performance levels referenced to application and environment aggressiveness.

Abstract

This part of ISO 18768 provides methods for specifying decorative and protective liquid organic coatings on aluminium and its alloys. It defines characteristic properties (appearance, colour, gloss, adhesion, corrosion resistance, etc.), lists required information to be supplied by the customer, outlines substrate preparation and pretreatment, and specifies tests and minimum performance requirements appropriate to application and environment. It excludes coil coatings.

General information

• Status: Published (International standard, adopted as a BS ISO document).
• Publication date: June 2022 (Edition 1, 2022).
• Publisher: International Organization for Standardization (ISO); available as BS ISO (British adoption/publication).
• ICS / categories: 25.220.60 (Organic coatings on metals).
• Edition / version: Edition 1 (2022).
• Number of pages: 40 pages (ISO published document).

Scope

This standard specifies methods for specifying decorative and protective organic liquid coatings on aluminium and its alloys for general applications. It covers liquid coatings mainly applied by electrostatic liquid spraying, air spraying or airless spraying, and it sets out characteristic properties and corresponding test methods with minimum performance requirements. Coil coatings are excluded from this part.

Key topics and requirements

• Information to be supplied by the customer to the surface processor (substrate details, intended application, environmental aggressiveness and required performance class).
• Metal preparation and pretreatment: material specification, degreasing, etching, anodic oxidation, chemical conversion coatings and alternative pretreatments.
• Classification/categories of coatings based on use and environment (selection guidance).
• Required tests and acceptance criteria covering appearance, colour (visual and instrumental), gloss, adhesion, resistance to mechanical damage, corrosion resistance (salt spray and related tests) and other performance checks.
• Minimum performance requirements referenced to application and environment aggressiveness (specification templates and reporting recommendations).

Typical use and users

Primary users are coating specifiers, aluminium fabricators, surface processors, paint and coating manufacturers, architects, product designers, procurement and quality-assurance laboratories. The standard is used to write specifications, to agree customer–processor requirements, and to select test regimes and acceptance criteria for coated aluminium components in construction, transport, architectural and general industrial applications.

Related standards

ISO 18768 is a multipart set: Part 1 covers powder coatings (ISO 18768-1:2022) and Part 2 covers liquid coatings (this document). Other related international standards commonly referenced in coating specifications and testing include salt‑spray and corrosion test standards and various paints and varnishes test methods (users should reference the specific test standards required by the project or jurisdiction).

Keywords

organic coatings, liquid coatings, aluminium, aluminium alloys, decorative coatings, protective coatings, specification, test methods, appearance, colour, gloss, adhesion, corrosion resistance, pretreatment.

FAQ

Q: What is this standard?

A: ISO 18768-2:2022 (published also as BS ISO 18768-2:2022) is an international standard that specifies methods for defining and testing decorative and protective liquid organic coatings applied to aluminium and its alloys.

Q: What does it cover?

A: It covers the information a customer should supply, substrate preparation and pretreatment, categories of coatings, required tests (appearance, colour, gloss, adhesion, corrosion-related tests, etc.) and minimum performance requirements tied to application and environmental aggressiveness. Coil coatings are excluded.

Q: Who typically uses it?

A: Coating specifiers, surface treatment processors, aluminium product manufacturers, coating suppliers, testing laboratories, architects and procurement/quality teams that need to define or verify performance of liquid organic coatings on aluminium.

Q: Is it current or superseded?

A: This document is current as published in 2022 (Edition 1). There is no indication on the ISO publication page that it has been superseded as of its publication. Users should check national adoption lists or ISO updates for any subsequent revisions or confirmations.

Q: Is it part of a series?

A: Yes — ISO 18768 is published in parts. Part 1 (ISO 18768-1:2022) addresses powder coatings; Part 2 addresses liquid coatings (this document). Additional parts may be developed or published under the same base number for other coating forms or applications.

Q: What are the key keywords?

A: Organic coatings; liquid coatings; aluminium; protective coatings; decorative coatings; specification; test methods; corrosion resistance; pretreatment; adhesion; gloss; colour.