ASTM B136
Standard Test Method for Measurement of Stain Resistance of Anodic Coatings on Aluminum
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About This Item
ASTM B136 is the standard test method for measuring the stain resistance of anodic coatings on aluminum. It helps define a consistent way to evaluate how well an anodized surface resists visible staining, which is important for appearance, durability, and product acceptance. For manufacturers, specifiers, and quality teams, this ASTM standard supports more reliable testing and comparison of coated aluminum finishes under controlled conditions.
ASTM B136 standard overview
The ASTM B136 standard provides a technical basis for assessing stain resistance in anodic coatings applied to aluminum. As a test method, it is intended to support repeatable evaluation rather than product design claims. The standard is relevant when a coating’s surface appearance and resistance to staining are important performance considerations. In practice, ASTM B136 is used to help compare test results consistently and to support more objective quality control and compliance reviews.
Where is ASTM B136 used?
ASTM B136 is commonly used in settings that work with anodized aluminum products and their surface-finish requirements. It may be applied during incoming inspection, production testing, or final verification of anodic coatings where stain resistance is a concern. The standard is especially useful for laboratories, finishers, and manufacturers that need a common method for evaluating coated aluminum parts and communicating performance expectations with customers or suppliers.
Practical importance of ASTM B136
The practical value of ASTM B136 is its role in helping teams measure stain resistance in a consistent and defensible way. That supports quality control, product evaluation, and procurement decisions where appearance and coating performance matter. Using the same ASTM standard across testing programs can reduce ambiguity, improve comparability between results, and lower the risk of disputes about whether anodic coatings meet expected finish requirements.
- Test method for anodic coatings on aluminum
- Measures stain resistance performance
- Supports quality control and evaluation
- Useful for consistent acceptance checks
- Publication Date: 2023-05-17
- Publisher: ASTM
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