ASTM E2109
Standard Test Methods for Determining Area Percentage Porosity in Thermal Sprayed Coatings
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About This Item
ASTM E2109 is the ASTM standard for determining area percentage porosity in thermal sprayed coatings. It provides a structured way to evaluate how much void space is present within a sprayed coating, which can be an important indicator of coating quality and consistency. For users comparing coating performance or verifying process results, this standard supports more reliable inspection and reporting. ASTM E2109 is especially useful when porosity needs to be measured in a repeatable, technically defined manner.
ASTM E2109 standard overview
ASTM E2109, titled Standard Test Methods for Determining Area Percentage Porosity in Thermal Sprayed Coatings, focuses on measuring the porosity of coatings produced by thermal spray processes. The standard is intended to guide a test method for evaluating the area percentage of pores or voids visible in a coating section or prepared sample. In practical terms, it helps users apply a consistent approach to coating examination, supporting standardized assessment rather than informal visual judgment.
Where is ASTM E2109 used?
This standard is commonly used in thermal spray coating work where porosity evaluation is part of inspection, qualification, or product verification. It may be applied in labs, production quality control settings, and engineering review processes that involve coated components. ASTM E2109 is relevant when teams need a recognized method for comparing coating structure across samples, documenting test results, or supporting acceptance decisions for sprayed coating systems.
Practical importance of ASTM E2109
ASTM E2109 matters because porosity can affect coating performance, consistency, and confidence in test results. A standardized method helps reduce variation between operators and improves the usefulness of inspection data in procurement, compliance, and quality control workflows. By providing a common basis for measuring area percentage porosity, the standard supports clearer communication between suppliers, test labs, and end users. It can also help reduce risk when coating integrity is tied to product performance.
- Area percentage porosity measurement
- Thermal sprayed coating evaluation
- Repeatable test and reporting method
- Quality control and acceptance support
- Technical comparison of coating samples
- Publication Date: 2021-11-04
- Publisher: ASTM
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