Form the Overspray Dam

What happens here

To prevent paint overspray from running down the wall once it hits the masking paper, pull the masking paper slightly away from the wall. Then, create a sharp crease in the paper where it meets the wall, effectively forming a small 'dam.' This dam will act as a barrier, causing the overspray to curl outwards and away from the wall, rather than trickling down.

Goal: Create a barrier to redirect overspray.