What primer to use?

I've just got the frame and forks and all other parts back from shit blasting and I want to get some primer on them to protect them. My question is what kind if primer do I want to be using? I do have a compressor I can use.

Use oil/grease base which can be remove with solvents. Otherwise you will have to get it blasted/paint stripper to remove any paint primer application. Best idea would have been to have the frame blasted and then painted or powder coated.
Regards,
Pete.

I use a multi purpose etch primer (can be used on steel or alloy) before undercoat. Bought from auto parts paint suppliers.