ISO 2143:2010

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Anodizing of aluminium and its alloys — Estimation of loss of absorptive power of anodic oxidation coatings after sealing — Dye-spot test with prior acid treatment

Published By	Publication Date	Number of Pages
ISO	2010-07	12

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Categories: 25.220.20 - Surface treatment, ISO

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Description

ISO 2143:2010 specifies a method of estimating the loss of absorptive power of anodic oxidation coatings that have undergone a sealing treatment, by dye absorption after acid pretreatment.

The method is suitable for use as a production control method and is applicable to anodic oxidation coatings which may be subjected to weathering or aggressive environments, or where resistance to staining is important.

The method is not applicable to those coatings that: a) are formed on alloys containing more than 2 % copper or 4 % silicon; b) are sealed by the dichromate process; c) have been given supplementary processing, e.g. oiling, waxing or lacquering; d) are coloured in deep shades; e) are less than 3 µm thick.

The method is less appropriate where nickel or cobalt salts, or organic additives, have been added to the sealing bath.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	2010-07
Pages Count	12
Language	English
Edition	2
File Size	368.6 KB
ICS Codes	25.220.20 - Surface treatment

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ISO 2143:2010

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