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. Also, when checking the paint, be realistic and don't ignore areas just for the sake of convenience. It will cost you more in time and money later. Typically if one area of the paint is cracked or peeling, then the paint on the entire car is suspect. Maybe the rest of the car just hasn't quite reached that point of decay, but it will shortly. So if you only fix areas that look bad, you'll likely find that you wasted a paint job when the other areas start to crack or peel in a year or two. Following a European directive, the British paint industry has reduced VOCs in two stages, the second of which came into force in January last year.
How warm does it have to be in order to paint your home? For most paints it typically has to be 37 degrees or warmer in order to paint the exterior of your house. Now if you are painting two coats of paint on your house and it is 55 degrees or cooler for the day, it is a good idea to paint the first coat one day and apply the second coat the day after. If you live in a really dry climate, like Denver, and your painting in the summer months, you can defiantly apply two coats in one day. However, the more humid climates in the south, it is still recommended to paint only one coat per day. At a minimum you want to remove all the chrome from the car. Take off both front and rear bumpers. If your Mustang has bumperettes that are body color be sure to bring them along so they can get sprayed at the same time as the rest of the car. Remove all rocker, hood and trunk molding. Same for wheel well molding and all emblems. This would be a good time to order some new emblems and attachment hardware. Also spend some time cleaning up all the chrome with #0000 steel wool. Nothing looks worse on a fresh paint job then faded emblems and corroded, cloudy chrome. Traditionally, the solvents or VOCs and other chemicals used to make paints easier to apply give off toxic fumes that seep into the atmosphere for years after application. Paints with reduced or no VOCs are healthier for decorators and the people whose homes are painted with them. Spend some time talking to the shop manager. He should have the time to thoroughly go over your options and explain their service and pricing. Be clear on what they're doing exactly. Will they scuff your existing paint? Will they be spraying primer? Are they OK painting any loose parts like bumper-ettes? If you're changing colors be sure to discuss the door jambs, trunk area and underside of the hood. Also, get instructions from the shop in writing for proper care of your fresh paint. It will include the number of paint curing days before you can wash it, wax it or let it sit out in the weather.