In this study, several 3D-printable PLA (polylactic acid) materials that can also be used to produce battery housings are evaluated. Proper testing is essential to developing better prototypes and final products, and DIC deformation tests are frequently utilized. To be able to evaluate the deformations of various parts and components, the surface of the product under test is randomly speckled. In DIC measurements, however, the deformation is transmitted to the measuring system via the paint, so preparation and paint quality play a crucial role. This research is focused on this underrepresented area in the literature. This article evaluates the DIC applicability of the most commonly used surface cleaning materials and paints.