Search:

Corrected my post to explicitly state the "Dovo" pastes.
Sorry for the oversight.

I spoke with HoekmanX yesterday and he searched some German razor forums. Combining his findings with classicshaving's here it is.
Dovo Red - Hard or tube - 2-4 micron
Dovo Black - one micron
Dovo...

I just finished reading all the relevant articles at classicshaving on this subject but did not find any numbers for the red & black pastes. The red is probably 4-6 micron iron oxide and the black is...