ASTM D6289
Standard Test Method for Measuring Shrinkage from Mold Dimensions of Molded Thermosetting Plastics
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About This Item
ASTM D6289 is a technical standard focused on measuring shrinkage from mold dimensions of molded thermosetting plastics. It helps define a consistent way to evaluate how molded parts compare with the mold dimensions after processing, which is important for dimensional control, product development, and quality checks. By using a recognized ASTM method, manufacturers and laboratories can assess shrinkage in a more uniform and comparable way across molded thermosetting plastic parts.
What is ASTM D6289?
ASTM D6289, Standard Test Method for Measuring Shrinkage from Mold Dimensions of Molded Thermosetting Plastics, addresses how to measure dimensional change related to molding. The standard is intended for thermosetting plastic materials that are formed in a mold and then checked against the mold dimensions to determine shrinkage. In practice, it supports a consistent testing approach so results can be used for engineering review, material comparison, and production control.
Where is ASTM D6289 used?
This standard is commonly used in settings where molded thermosetting plastics must meet dimensional expectations after molding. It is relevant in product development, laboratory testing, and manufacturing quality control for molded parts, especially when shrinkage affects fit, repeatability, or tooling decisions. ASTM D6289 may also support evaluations during material selection and procurement when buyers and suppliers need a common test method for comparing molded performance.
Why is ASTM D6289 important?
ASTM D6289 is important because shrinkage can affect part dimensions, assembly fit, and overall consistency. A standardized test method helps reduce uncertainty when comparing materials or verifying molded part performance. For organizations involved in compliance, inspection, or production monitoring, the standard can support more reliable results and clearer communication between customers, molders, and test laboratories. It also helps improve repeatability in quality control workflows.
- Measuring shrinkage from mold dimensions
- Thermosetting plastic molded parts
- Dimensional consistency and control
- Testing for quality and comparison
- Support for engineering and procurement decisions
- Publication Date: 2019-05-27
- Publisher: ASTM
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