Bleed Thru markers make special marks that will bleed through paints and primers.
The IM-13 features a reversible tip with a 2mm rounded bullet tip on one side, or turn the tip around for a 4.8mm chisel.
Use for OIL-BASED primers only. Sturdy aluminum barrel holds a large ink supply that won’t dry out due to the patented valve-controlled tip. Remember to shake well and keep tip saturated for proper bleed-through.