Valve Grinding or Lapping Compounds

[MClark]

What is the popular brand(s), type and grit of Grinding compounds for Round Knife, Skiving Knife, & Swivel Knife sharpening and polishing.   Please specify grit or microns.

People often say the Black stuff. But that doesn't necessarily indicate grit abrasion

Thanks,

Mark Clark

[bruce johnson]

Mark, there are no standards with colors as it sounds like you have found out. Here are my #1 picks from coarse to fine for metals. I use them on buffing wheels, grinder stropping belts,  and manual strops 

Formax Black Magic - I get it from Tru Grit  - This will take grit marks out and leave a particularly fine finish too. It is some voodoo stuff and not like any other black compounds I have used as far as taking out marks to leaving a pretty shiny final finish. Others leave a matte finish, this goes noticeably past that. 

Green from Maverick Abrasives - finer than black and more of a mirror polish

Purple from Maverick Abrasives - super mirror finish and removes residual grit marks left by green. 

Downside is that these are sold in 3# sticks. Remind me the next time you order tools and I can break you off some chunks of each  to try. 

 

From local hardware and home improvement stores - 

Dico black (E5)

Dico white - kind of got to skipping it and I don't miss it much

Dico Green 

[MClark]

Bruce:

Thanks.

I will also check out the Formax and Green and Pruple for my new strops.

Thanks,

Mark Clark

Edited 5 hours ago by MClark