TIPS ON PAINTING VINYL SIDING
You must use the right paint to achieve victory. The ones that seem to work best with vinyl siding are ones that have a blend of urethane and acrylic resins. Water based urethanes mixed with high grade acrylic resins produce a user-friendly paint that has extraordinary adhesive qualities. This is exactly what one needs to combat the daily movement of the vinyl siding. Exterior latex paints that contain urethane are readily available. Simply look for the word urethane on the label of the paint can.
To get the absolute best results from this paint job you need to do a few other things. I feel that a clean, dry surface is very important. If you clean your house like your own body or your car, you will have a great head start. This means using soap and water and some good old fashioned elbow grease. You must mechanically remove the dirt film from the existing painted surfaces with soapy sponges, rags or brushes. Do not count on pressure washers to clean your existing surfaces. Not only do they not get all the dirt off the surfaces, but they also can inject massive amounts of water into and behind the siding. This hidden water can cause big problems as you begin to apply the new paint.
If mildew is present on the existing surfaces, use an oxygen bleach solution to remove it. Oxygen bleach will not harm the vinyl siding nor any vegetation near your home. Avoid chlorine bleach as it is highly toxic to vegetation. Oxygen bleach can be found easily on the Internet.
Painting in direct sunlight is also not the best idea. If you can paint your home in cooler weather and preferably on overcast days, the paint will have excellent conditions in which to dry and bond to the vinyl siding and existing wood siding. Windy, hot and sunny weather is not the best time to paint contrary to what many people believe.