Which lapping plate to use?

A general guide to which Kemet Plate and Abrasive to select to lap or polish a given material.

Key:

L = Typical Lapping Plate and Kemet Diamond Micron Size
P = Typical Polishing Plate and Kemet Micron Size
P* = Mirror finish polish
PP = Prepolish

C = Cerium Oxide
* = Kemox 0-800 Abrasive
+ = No Abrasive Required

Material	Plate Type
Material	ASFL-A Pol. Cloth	Col-K	Kemet LP	Kemet XF	Kemet XP	Kemet Copper	Kemet PR3	Kemet BP	Kemet Iron	Cast Iron
Altic				P < 1μ		L 6μ				L 6μ
Aluminium	P 3μ	P*								L *
Brass	P 3μ					P 3μ				L *
Technical Ceramic					P 3μ				L 6μ	L 14μ
Carbon						P 3μ			L 6μ	L *
Ferrite				P 1μ	P 3μ				L 8μ
Ni Resist	P 3μ									L *
Plastics	P 3μ									L*
Hard Steel	P 3μ	P*			P 3μ	P 3μ			L 14μ
Soft Steel	P 3μ					P 3μ			L 14μ	L *
Mould Steel	P 3μ	P*				P 3μ				L *
Sapphire								P 1μ
Silicon Carbide					P 3μ				L 14μ
Stellite	P 3μ	P*			P 3μ					L*
Tungsten Carbide	P 3μ				P 3μ			P 3μ	L 14μ	L 14μ
Stainless Steel	P 3μ	P*					P 6μ
Optics							C 1μ
Cobalt Chrome		P*	L 10μ			PP 6μ			L 14μ
Titanium		P*	L 10μ			PP 6μ			L14μ