Primer paints may be oil- or water-based and are used to seal unpainted surfaces to prevent covering coats of paint soaking in. The appropriate type of primer should be used for the surface being painted - wood, metal, plaster or tiles. There are some 'all purpose primers' available which are designed for two or more of these surfaces.
Scuff for paint. Once your Mustang is totally stripped of exterior chrome it's time to scuff up the existing paint. The paint shop should do this also, but on the lower end paint packages they won't spend much time here. It's better for you to do it so you know it's done thoroughly.
THE COMPOSITION. Now go back to the subject and your first impressions about the painting. It's time to analyze how the artist made you feel the way you felt using the artistic means it his/her disposal. The composition is the position and the balance of the objects and figures in the space, the interrelation of their size, coloring, shading etc. How exactly does all that impact your perception? Let's dig in.
First consider the size of the painting. The more impressive the subject, the higher the emotions it appeals to, the bigger it is. Religious, mythological paintings are often huge - their massive energy makes you shiver. It is pretty understandable with figurative paintings like Rafael's "The Sistine Madonna", and more subtle with color field paintings of Mark Rothko. People are often overwhelmed with religious tremor in the presence of his artwork, and the size factors in. Also, the subject often calls for larger canvases - battle scenes need space and cannot be fitted into a smaller painting, while some subjects will get lost unless depicted in a smaller size.
Thinking skills (cognition): Thinking is a kind of "inner speech". We talk silently to ourselves to think through things and solve problems. Children in imaginative play begin to develop this skill through talking aloud and explaining everything that is happening in the game. (Think of the children playing in the "home corner" in your playschool and how they tell each other what to do and talk to the dolls and teddies). Slowly, as they become more practiced, this talking changes to become "inner speech" (they think it but don't say it out loud). This is a major foundation for developing thinking and reasoning skills.
For stippling you need a special brush; get one that is flat, and has short, stiff bristles.
Reasons to Use Primer with Paint. Primer plays 2 important roles in painting projects. Firstly, if you are painting a wall that has never been painted (with water-based paint) before, primer will allow your new paint to stick (or "mechanically bond") to the surface. Since primer is typically not necessary if the wall has previously been painted, many people skip this step. Unfortunately, doing so negates its 2nd (often, more valuable) role in color coverage.