Is it true that parts printed in UV resin need to be post cured?

Parts printed in UV resin indeed require post-curing to achieve optimal mechanical properties and surface finish. The printing process involving UV resin utilizes ultraviolet light to solidify the liquid resin layer by layer. However, this initial curing does not complete all the chemical reactions necessary to fully harden the material.

Post-curing typically involves exposing the printed part to additional UV light for a specified time, which further cures the resin, enhancing its strength, heat resistance, and overall durability. This step is crucial for parts that need to perform under stress or in demanding environments, as it ensures that the printed object is not only solid but also resistant to deformation and breakage.

While some resins may have different post-curing requirements depending on their specific formulations, the general rule is that effective post-curing is a standard practice for all UV resin prints to reach their intended material properties and stability. Therefore, asserting the necessity of post-curing for UV resin parts is accurate.