Initial Masking of Window Glass and Casing Edges

What happens here

Begin by masking the window glass and the inner edge of the casing using a high-quality masking film that has integrated painter's tape, such as Frog Tape Green. This tape is preferred for its polymer technology that prevents paint bleeding, especially when there's a significant color difference between the casing and the window material (e.g., vinyl). Roll the plastic film downwards to cover the window, and then roll it back up to simplify trimming and management, preventing it from blowing away if it's windy.