When plastic resins entered the market, they showed considerable advantages, first of which was the ease of the their processing. Parts which could be made with injection molded plastic favored the industrialization of the production at much lower prices. Furthermore, these new plastics were also much more resistant to the corrosive agents; in fact one of the reasons for which the [[Parker 51]] resorted to ''[[Lucite]]'' was the need to resist the corrosive effects of a new fast drying ink, introduced together with the pen. | When plastic resins entered the market, they showed considerable advantages, first of which was the ease of the their processing. Parts which could be made with injection molded plastic favored the industrialization of the production at much lower prices. Furthermore, these new plastics were also much more resistant to the corrosive agents; in fact one of the reasons for which the [[Parker 51]] resorted to ''[[Lucite]]'' was the need to resist the corrosive effects of a new fast drying ink, introduced together with the pen. |