- Spray on. This is where your airbrushes and spray cans fit. Airbrush offers more control than a spray can. You need good ventilation for the spray cans and special equipment for the airbrush. You also don't leave brush marks when you use a spray on primer. This is important if you want a smooth finish on vehicles where you have large flat areas where brush strokes cant hide. Both take a little more prep time than using the brush on method but require much less drying time. I use an airbrush for bulk priming...things like vehicles, infantry mounted as teams on a base, etc... This justifies the additional set up time in my mind.
- Basecoat. Here, you use a color that will be your base coat and you shade/hi-lite from there. The benefit here is that you save a step in the painting process by combining your prime and basecoat. Slight downside in that your shadows/shades don't show up as well.
Again the link for the video on Priming : Priming Video
Based on a conversation in the WWPD Forums, I wanted to make it clear to the reader, especially new/inexperienced painters, that a TRUE primer, as I mentioned above, does make a stronger bond with the model and is preferable. I have been using regular paint as a "poor man's" substitute because I didn't like what was available to me at the the time when I came up with the "compromise method" of brush-on/blow off excess I described above and in the video (close to 10 years ago now) . The conversation in the WWPD forum got me to thinking about looking for a TRUE Primer that will fit my needs. It has been 10 years afterall.
What are "my" needs in a true primer...first and foremost is what I discussed above regarding the needs for a primer...something that bonds to the model and gives a base from which to build paint from (any TRUE primer will do this) but something that still gives me control and preserves detail. Finding a primer that I can use the "compromise method" of brush-on/blow off excess method should give me that. 10 years ago I didn't get that from spray can TRUE primers and the available brush-on TRUE primers were a pain. Not sure why I didn't see and try this earlier, but Vallejo makes primers, in different colors as well, in their handy-dandy-easy-to-use dropper bottles. Going to try these out and will give a report back.
As I say in almost every tutorial...EXPERIMENT and don't be afraid to try something new. Everything is has its costs and benefits. Its weighing what you get out of it to what you lose and the only way you know for sure is to experiment.