I have some old cow bones that I would like to use for knife scales. I'm concerned about how pourus they are on the inside. My question is:  Have any of you used bones for scales and how did you seal them?
			
			
			
				plyurethane and acetone 50/50 
Try to cut the bone where there is no marrow area on the surface. Split the bone and remove material from the middle out. I find that shin bones are best, but that also means it has to be a big specimen and cut just right.
			
			
			
				Thanks Lin,
I have 10-12 shin bones from cows and think they will make great handles.  Does the poly/acetone mix make them slick?
			
			
			
				No. It just fills the pores mostly, unless you apply it last.