ASTM D661 Standard Test to Evaluate the Cracking Degree of Exterior Paints

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ASTM D661 testing. This standard is to provide a tool to assist in assessing the degree of cracking of exterior paints through visual inspection of the sample surface.

More specifically, this standard provides photographs of a particular type of failure as a way of comparing them with cracking present at the surface of the sample. In other words, the drawings provided by this method should be interpreted to characterize the type of cracking of the material because they do not represent the full spectrum of possibilities.

In another aspect, it is important to keep in mind that this test protocol does not provide a procedure to lead to the evaluation of the desired trait. Thus, it is essential to match this application with a method that will condition the sample in order to evaluate the properties of the paint film. For example, ASTM G154, an accelerated weathering test based on the use of fluorescent UV light, is a great example of a test that can be associated with this standard, since the UV test is used to evaluate accelerated fluorescent UV exposure, mainly the loss of mechanical properties.

EUROLAB assists manufacturers with ASTM D661 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.