大和合成 Official site

Product Services

Products/Services

  • Injection molding

    Injection molding(47)

    This is an introduction to injection molding.

  • Thermosetting resin

    Thermosetting resin(8)

    This is a resin that hardens through a chemical reaction when heat is applied and cannot be processed by reheating. Compared to thermoplastic resins, it has superior heat resistance and other properties. In the automotive industry, it is particularly used for parts around engines that require heat resistance, while in the heavy electrical equipment industry, it is used for large circuit breakers that require not only heat resistance but also mechanical strength.

  • Thermoplastic resin

    Thermoplastic resin(37)

    It is a resin that softens when heat is applied, allowing for processing through re-heating. Thermoplastic resins are classified into crystalline and amorphous types based on their molecular structure. Crystalline resins excel in chemical resistance and solvent resistance, but are inferior in solvent adhesion, ultrasonic welding, paintability, and printability. Amorphous resins are the opposite. In the automotive industry, they are used in applications such as reservoir tanks, while in the pharmaceutical industry, they are used for eye drop containers.