For marking under solvent-based or oil-based primers use the B-L Paintstik
Marking range: -50 degree F to 150 degree F (-46 degree C to 66 degree C)
Description
Designed to bleed through water-based primers or painted surfaces, the BL-W Paintstik is ideal for structural steel parts or layout work where marks are required to show through a covering coat of paint or primer.