The Basecoat greatly enhances the performance of the Screen Goo Coatings. Screen Goo Digital Grey Lite Basecoat - 500 mL (#4743) 4743US$24.99 Screen Goo Digital Grey Lite Basecoat - 1000 mL (#4744) Screen Goo Digital Grey Lite Basecoat - 1000 mL (#4744) 4744US$44.99 Screen Goo Kit - Digital Grey Lite (# 4779) Screen Goo Kit - Digital Grey Lite (# 4779) 4779 KITUS$229.99 Digital Grey Lite Screen Goo Home Theater Screen