Proper preparation is important when working with PVC pipes, joints and pipe parts. Most paint is a solvent for plastic and can melt or weaken the PVC pipe. The first step in preparing the surface is to clean it free of oil and grease, and dry it thoroughly. Then you get some fine sandpaper and scuff up the outside of the pipe. You need to do this to make sure that the surface is not so smooth that the paint can not stick. Use plenty of newspaper or drop of fabric to protect surrounding surfaces from over-spraying during painting.
Applying primer can help you achieve dirt coating, but the rules of color are the same as the rules of primer. Make sure the product you use is compatible with plastics such as PVC pipes. A latex-based product is probably safer than an oil-based one because the solvents in oil-based products are harmful to plastic.
A new product that is intended to work on plastic is Krylon (TM) Fusion brand paint. It is specially designed for PVC and plastic surfaces and it comes in colors and clear fur. Fusion can be found in home improvement and hardware stores. There are also other products available at car dealerships and paint stores that carry car paint. These paints can be brushed or sprayed on fiberglass and plastic and can also be prepared in a wide range of colors and degrees of gloss fractures.
Make sure you work in a ventilated area out of the attic where the temperature is between 50 and 85 degrees with low humidity. Hold the spray head 10 inches from the surface you are painting and apply the paint in wide sweeping motions. Apply the paint in several thin layers to keep it from dripping or running. The secret to successfully dyeing PVC pipes is surface treatment. Whether you are painting exposed PVC to make it less noticeable in your family room or making a giant blue pipe drum, you need a durable paint that melts on the plastic PVC surface without deteriorating the pipe. Painting is the only reliable way to get an even, even color and spray painting is the most effective way to apply it.