hey, capt.,
i know it's designed to leave a permanemt mark... i'm 3 mos. away from retiring from 30 yrs as a union carpenter! there isn't much i don't know or haven't done when it comes to wood and nails. i just got done with a very curley big-leaf maple laminated thumbhole stock and used it for all inletting. the stock was finsihed with my own recipe of rubbed on poly with just a touch of cherry stain in it to bring out the curl. so it was left pretty white in color and there is no red staining anywhere, not even in the action mortice and barrel chanel. believe, it works as i said, try it. simply dab a bit on your fingertip and wipe it evenly over the piece you want to inlet. it will leave good contact marks and no residue when you wipe your work down with spirits. as i said, i've been using it for years with good results. it's no more permanent than any of the accepted dies used for the same thing. lamp black is carbon for cripes sake and layout dye or machinist's dykem is blue ink... both pretty permanent on wood.
i know it's designed to leave a permanemt mark... i'm 3 mos. away from retiring from 30 yrs as a union carpenter! there isn't much i don't know or haven't done when it comes to wood and nails. i just got done with a very curley big-leaf maple laminated thumbhole stock and used it for all inletting. the stock was finsihed with my own recipe of rubbed on poly with just a touch of cherry stain in it to bring out the curl. so it was left pretty white in color and there is no red staining anywhere, not even in the action mortice and barrel chanel. believe, it works as i said, try it. simply dab a bit on your fingertip and wipe it evenly over the piece you want to inlet. it will leave good contact marks and no residue when you wipe your work down with spirits. as i said, i've been using it for years with good results. it's no more permanent than any of the accepted dies used for the same thing. lamp black is carbon for cripes sake and layout dye or machinist's dykem is blue ink... both pretty permanent on wood.