Vinyl siding  has long been a great choice for homes because it requires almost no maintenance  and is ultra-durable. But after years and years of service, vinyl siding may appear worn and faded. The good news is, vinyl siding can be painted to deliver a beautiful and lasting result.
The first step is to make any necessary repairs to your vinyl siding , then thoroughly clean and rinse the surface. If mildew is present, you can remove it by applying a 3:1 water/bleach solution and then rinsing thoroughly.
Next, apply a coat of primer. This critical step will assure the paint’s color coat gets a proper grip on the surface of your vinyl siding , as well as deliver uniform color and sheen.
When it comes to the paint itself, it's important to use the right product. High quality 100% acrylic latex paint  is the right choice for smooth, slick materials like vinyl siding because it provides excellent adhesion.
"By applying this type of paint, the surface will look great, and it will stay that way for years to come,” says Debbie Zimmer, paint and color expert at the Paint Quality Institute.
It’s also important to make sure to use quality brushes and rollers when applying the primer and paint to your vinyl siding . The right paint brush helps the coating flow evenly, and delivers the best possible appearance
Finally, chose the day you decide to paint your vinyl siding  carefully, looking for weather that is not too hot, too cold, or too windy. Extreme weather can prevent paint from drying properly and spoil the look of the final result.