Material composition: Acrylic board is made of polymethyl methacrylate (PMMA) or polymethyl methacrylate (PMA), which is an important plastic polymer material developed earlier. PET plastic, also known as polyethylene terephthalate, is made of diethyl terephthalate by transesterification or esterification of dimethyl terephthalate and ethylene glycol, and then condensed.
Acid and alkali resistance: Acrylic board has good acid and alkali resistance, and the surface will not be yellowed and hydrolyzed after long-term use; However, PET board is not alkali-resistant, and may be hydrolyzed by wind, wind and sun.