The molecular structure of raw rubber is an elastomer with long unsaturated bond. Therefore, in the process of molding, appropriate drug additives and external environmental factors (such as time, temperature, pressure, etc.) are needed to destroy its unsaturated bond, and then re combine it into a saturated bond. With the assistance of vacuum, the air inside is completely forced out.
Only in this way can the formed rubber give full play to its proper characteristics. If there are any defects in the molding process (such as wrong formula, insufficient time, improper temperature, etc.), it can cause the loss of physical properties, release of excess drugs, deformation, accelerated aging, and various serious adverse phenomena.