Welcome to UPD Plastics.com, your best and largest source of stock and custom plastic windshields, doors, and hatches for boats on the web! We have a large variety of stock mold Plexiglass windshields for all types of boats. View pictures, schematics, colors samples and prices on the portholes below.! Call or email us today. We use only marine grade Acrylic on our windshields to ensure long life!