ASTM D2247
Standard Practice for Testing Water Resistance of Coatings in 100 % Relative Humidity
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About This Item
ASTM D2247 is the standard practice for testing water resistance of coatings in 100% relative humidity. It provides a controlled way to evaluate how coating systems respond when exposed to a consistently humid environment, helping users compare performance with greater consistency. This matters for product development, quality control, and procurement because high-humidity exposure can reveal changes in appearance, adhesion, or overall coating integrity under severe moisture conditions.
ASTM D2247 standard overview
This ASTM standard focuses on a specific humidity exposure test for coatings, using 100% relative humidity as the testing environment. As a practice, ASTM D2247 is used to help create repeatable conditions for assessing water resistance rather than to define a product requirement. The standard is relevant when a coating’s response to persistent moisture exposure needs to be observed in a controlled and comparable way, supporting technical evaluation and consistent reporting across test programs.
Where is ASTM D2247 used?
This standard is commonly used in coating laboratories, research and development settings, and quality control workflows where humidity resistance must be assessed under defined conditions. It is generally applied to coated panels or similar test specimens as part of product development or comparative performance testing. ASTM D2247 is also useful when manufacturers, suppliers, and buyers need a shared technical reference for evaluating coating behavior in environments with sustained high moisture exposure.
Practical importance of ASTM D2247
In practice, the standard helps reduce uncertainty when testing coating performance under extreme humidity. ASTM D2247 supports more consistent test conditions, which can improve the reliability of comparison data, procurement decisions, and internal specifications. It is especially useful when teams need to verify whether a coating maintains acceptable condition after exposure to persistent moisture. That makes the standard valuable for quality control, product qualification, and risk reduction.
- Controlled 100% relative humidity exposure
- Water resistance evaluation for coatings
- Useful for product comparison and qualification
- Supports repeatable quality control testing
- Helps document performance under moisture stress
- Publication Date: 2025-06-10
- Publisher: ASTM
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