Common inert plastic materials (IPM) are polypropylene (PP), polyethylene (PE), polyamide (commonly known as nylon, PA), and so on, are widely used in various fields. However, bonding IPM is very difficult because of their low surface energy (LSE) and limitation on wettability. Hence, we have recently successfully developed structure acrylate adhesives that can be cured at room temperature without the need for surface treatment or primer to successfully and easily attach LSE substrates.