The MDF we have here is smooth on both sides. And, as it's flat relatively speaking, it makes a great medium to apply diamond to. The diamonds imbed and do their job. I don't know about the 2 mic diamond. There are diamond powders available in many different particle sizes though. I would mix them with, or, if you're buying pre-made diamond spray, etc, alcohol or oil based. You don't want a water based paste going on wood.

Since you do have 1k paste, you should first try setting a bevel by backhoning on some of that MDF and see what happens. I'll keep an eye out for your results.

Chris L