Masking Fluid MarkerHow I use these: Use these masking fluid markers to easily cover silicone fins when painting a bait that already has them installed. Unlike tape, this product provides a secure hold. You can try different sizes and uses, but I recommend the 3mm option. After clearcoating, simply peel off the masking fluid. To avoid removing the clear coat from the bait, make sure there is a clean separation between the bait and the fin before peeling.