Standard: ASTM D7234 Standard Test Method for Pull-Off Adhesion Strength of Coatings on Concrete Using Portable Pull-Off Adhesion Testers

This standard is specifically designed for evaluating the pull-off adhesion strength of coatings applied to concrete surfaces. Concrete presents unique challenges due to its porosity and varied surface characteristics. Similar to D4541, a dolly is glued to the coated concrete surface, and a force is applied. A key difference often involves scoring the coating around the dolly’s perimeter down to the concrete, and sometimes even coring a plug of concrete, to ensure the test measures the coating-to-concrete bond accurately. It addresses the specific considerations for testing on concrete, which can include substrate strength and preparation.

4ward Mechanical Testing Services

4ward Testing offers specialised product Testing Services, using advanced technologies and a flexible approach to meet various sector needs. They ensure accurate, consistent, and efficient testing for a range of materials, products, and systems against environmental challenges.

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